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Packaged by Turner BMW Cooling System Parts & Accessories

The cooling system is arguably the weakest point in numerous BMWs. If you drive an aging BMW or plan on taking your car to the track like we do, we recommend beefing up your cooling system before going to the track. Generally, the main components in your cooling system that are prone to failure include the following: expansion tank, factory hoses, water pump, thermostat, fan (especially if your vehicle comes factory with a clutch fan), and radiator. Factory BMW expansion tanks are plastic and prone to either breaking off at connection points or combusting. As factory rubber hoses age they either crack or break over time - we offer silicone cooling hose upgrades for most applications to avoid future failures. If you have an older vehicle, your water pump likely comes from the factory with a plastic impeller - we offer upgraded water pumps with metal impellers that are far more reliable. Newer model BMWs utilize electric water pumps - BMW spent millions of dollars engineering these water pumps, but they fail so often that we recommend replacing at 60,000 mile service intervals to avoid being stranded on the side of the road. In terms of thermostats, we offer various upgraded thermostats for racing applications. If your BMW utilizes a clutch fan from the factory, we have several options available in terms of universal electric fans - we recommend replacing these to avoid sending brittle plastic fan blades through your hood. For radiators, we recommend swapping out your radiator for one that does not use plastic connection points like your factory radiator.

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T#:338705
Part#: TMS16592
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The oil cooler/heat exchanger for the automatic transmission is one of the most overlooked sections of the 540i and 740i cooling system. The cooler (heat exchanger) is a part of the overall cooling system and uses coolant circulated from the regular cooling system to cool the transmission oil running through this small cooling block. Some of the hoses are shared with the rest of the cooling system as well. The E38/E39 heat exchanger is located along the driver's side frame rail and is accessed from the wheel well. We recommend servicing or cleaning the heat exchanger along with any cooling system overhaul. Or if you're having transmission faults (especially for temperature) you may want to clean the transmission cooler anyway and these hoses will be a nice finishing touch.

Replacing or cleaning the heat exchanger components could lead to better shifting of the automatic as the cooler itself can become clogged. If you're experiencing harder or hesitating shifts, and the internal transmission temperature is rising without being regulated, the components in this system are the likely cause. Staying on top of the cooling needs of the transmission will help prevent a very costly transmission repair in the future. These hoses are easily replaced and you can clean the heat exchanger easily with brake cleaner and some brushes.

Included in this handy package are:
  • 11531711381 - transmission cooling hose from water pump to radiator (with t-connector)
  • 11531711385 - transmission cooling hose from radiator to cooler
  • 11531711384 - transmission cooling hose from cooler to water pump
  • 11537511207 - transmission cooling hose from cooler to chassis
  • hose clamp
  • o-ring


    This hose set fits the following BMWs:
    1999-2003 E39 BMW 540i
    1999-2001 E38 BMW 740i 740il
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    Packaged by Turner - Corporate Logo
    T#:337995
    Part#: 11537835558
    In Stock at Vendor
    $ 73.99

    This product was last offered at the strikethrough price on
    04-21-2026

    Starting at $ 71.61 USD
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    Starting at $ 71.61 USD
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    Don't take chances! Proper maintenance is required to keep your car performing at peak levels. The thermostat basically controls when your car will overheat. Don't let it fail on you. This thermostat fits BMW E39 M5 E34 M5 and Z8

    This thermostat fits the following BMWs:
    1991-1993 E34 BMW M5
    1998-2004 E39 BMW M5
    2000-2003 E52 BMW Z8
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    Packaged by Turner - Corporate Logo
    T#:557311
    Part#: E46NONMPCKT3
    Ships in 4 Business Days
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    This product was last offered at the strikethrough price on
    05-03-2026

    $ 1,429.54 USD
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    If you plan to drive your BMW aggressively on the track, it is important that you upgrade your cooling system to avoid overheating. To ensure your BMW keeps cool on the track, we have built out our new High Performance Cooling System Upgrade kits. Featured in this kit is everything you will need to redo your cooling system from top to bottom with OEM components, with select stock components swapped out for the high performance alternative! This kit includes a high performance Mishimoto Radiator, for significantly better cooling than the stock radiator and full aluminum construction that won't crack from long term heat cycling, a performance Mishimoto 70*C thermostat, for lower temperature operation and increased cooling of the engine, and a Stewart High Performance Water Pump, for dramatically increased coolant flow at all RPMs. 

    Additional items included in this kit:

    • OEM Replacement Coolant Hoses
    • OEM Expansion Tank, Cap, and Level Sensor
    • OEM Belts, Tensioners, and Pulleys
    • OEM Auxiliary Fan Switch
    • Genuine BMW Hardware for Easy Installation
    • ECS Tuning Aluminum Water Pump Pulley - For increased reliability over the stock composite pulley
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    Packaged by Turner - Corporate Logo
    T#:338704
    Part#: TMS14417
    Ships in 3 Business Days
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    This product was last offered at the strikethrough price on
    05-03-2026

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    This product was last offered at the strikethrough price on
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    This is a compete cooling system overhaul kit, which includes all the common cooling system failure parts bundled into a complete package. This cooling system package is for the 1999-2003 540i with the M62TU VAN0S 4.4-liter engine. This package applies to cars equipped with either the manual or automatic transmission (select the appropriate parts in the menu below).

    A failure in the cooling system can lead to overheating and catastrophic engine failure. Don't gamble your engine! By replacing these core items preventatively, such as the thermostat housing, radiator, and waterpump, you are defusing what could be a ticking cooling system time bomb. And if you've had a failure of one of these parts, now is the time to refresh your entire cooling system. Our bundled package includes the following:
  • OEM Behr radiator (select for manual or automatic transmission)
  • OEM water pump (choose either the metal or composite impeller)
  • OE BMW coolant temp sensor (located in the water pump housing)
  • OEM Behr thermostat with housing and sensor
  • OEM Behr expansion tank with cap
  • OE BMW upper and lower radiator hoses with expansion tank hose
    Optional items (which can be added below):
    - OE BMW antifreeze
    - Add a new coolant level sensor (known for failing / throwing "check coolant" messages)
    - Replace the heat exchanger coolant lines for the automatic transmission
    - Add a new fan clutch

    Buy as a package and save $$$!

    This cooling system overhaul kit fits the following BMWs:
    1999-2003 E39 BMW 540i
    1999-2001 E38 BMW 740i 740il
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    Packaged by Turner - Corporate Logo
    T#:338714
    Part#: TMS14418
    Ships in 1 day
    $ 1,201.99

    This product was last offered at the strikethrough price on
    06-05-2026

    Starting at $ 1,192.27 USD
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    This is a compete cooling system overhaul kit, which includes all the common cooling system failure parts bundled into a complete package. This cooling system package is for the 1999-2003 E39 M5 with the S62 engine.

    A failure in the cooling system can lead to overheating and catastrophic engine failure. Don't gamble your engine! By replacing these core items preventatively, such as the thermostat housing, radiator, and waterpump, you are defusing what could be a ticking cooling system time bomb. And if you've had a failure of one of these parts, now is the time to refresh your entire cooling system. Keep on top of the cooling needs of your engine for your own piece of mind. Potential buyers also see the upside of a properly maintained car with receipts. Our bundled package includes the following:
  • OEM Behr radiator
  • OEM Laso or OE BMW water pump with gasket
  • OE BMW coolant temp sensor (located in the water pump housing)
  • OEM Behr thermostat with o-ring
  • OE BMW o-rings for the inner coolant tubes
  • OE BMW expansion tank cap
  • OE BMW upper and lower radiator hoses with OE-style clamps
  • OE BMW expansion tank hose with OE-style clamps
    Optional items (which can be added below):
    - OE BMW antifreeze
    - Add a new coolant level sensor (known for failing / throwing "check coolant" messages)
    - Add a new plastic expansion tank (if it's never been changed it's a risk of a crack or leak)
    - Add a new fan clutch

    Buy as a package and save $$$!

    This cooling system overhaul kit fits the following BMWs:
    1999-2003 E39 BMW M5
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    Packaged by Turner - Corporate Logo
    T#:557230
    Part#: E39540BCKT
    Ships in 1 Business Day
    Sale - Save 11% $ 449.99

    This product was last offered at the strikethrough price on
    04-21-2026

    $ 398.70 USD
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    This product was last offered at the strikethrough price on
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    Just like the rest of your vehicle's major systems, the cooling system must also be addressed periodically to ensure proper cooling and component reliability. Plastic and rubber components become brittle and prone to splitting or cracking after long periods of heating and cooling cycles, especially in colder climates! The coolant itself can degrade or become contaminated, leading to potential corrosion or freezing issues. Finally, thermostats and sensors can fail completely, preventing proper cooling and/or coolant temperature readings to become inaccurate.

    To make sure you are not left stranded on the side of the road with an overheated engine, we have put together this Basic Cooling System Service kit. This kit contains all of the most-likely-to-fail components, giving you peace of mind knowing your engine will continue to run cool for another 60,000+ miles.

    See kit contents below for all included components.

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    Packaged by Turner - Corporate Logo
    T#:30397457
    Part#: 11517586779KT2
    Ships in 1 Business Day
    $ 321.99 USD
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    Maintain your BMW's cooling system and avoid costly repairs with our comprehensive Water Pump and Thermostat Replacement Kit, meticulously crafted by the experts at Turner Motorsport! Designed to service BMW models with the N62 engine, this kit ensures your vehicle runs at optimal temperature, preventing overheating and extending engine life.

    Key Benefits:

    All-Inclusive Kit: This package includes everything you need for a complete cooling system overhaul, saving you time and effort sourcing individual components. High-Quality Components: Each part in this kit is manufactured to meet or exceed OEM standards, guaranteeing reliable performance and longevity. Optimal Cooling Performance: Regularly replacing your water pump and thermostat every 60,000 miles is crucial for maintaining peak cooling efficiency. Our kit ensures your BMW's engine stays within the ideal temperature range, preventing overheating and potential engine damage. Enhanced Reliability: By including premium components like the Wahler Thermostat and Graf Water Pump, this kit provides enhanced durability and peace of mind. Kit Contents:

    Wahler Thermostat (Part #11537586885): Renowned for its precision and reliability, ensuring your engine maintains the correct operating temperature. Graf Water Pump (Part #11517586779): High-performance pump designed for consistent and efficient coolant circulation. Genuine BMW Hex Bolts (M6x25) (Part #07119905400): Essential hardware for secure installation. Genuine BMW Hex Bolts (M6x40) (Part #07119904525): Ensures all components are firmly in place. Genuine BMW Coolant/Antifreeze (Diluted, 1 Gallon) (Part #82141467704): Formulated specifically for BMW cooling systems, providing optimal protection against corrosion and freezing. Upgrade your BMW N62 cooling system with this expertly curated Water Pump and Thermostat Replacement Kit. Perfect for maintaining the health and efficiency of your engine, this kit is an essential investment for any BMW enthusiast. Order now from Turner Motorsport and ensure your vehicle performs at its best.

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    Packaged by Turner - Corporate Logo
    T#:554086
    Part#: 11537835558KT7
    Ships in 1-2 days
    $ 170.99

    This product was last offered at the strikethrough price on
    04-21-2026

    $ 168.99 USD
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    When it comes time to replace your thermostat, be sure you have everything you need. This kit includes everything you need to replace your thermostat, including the thermostat.

    Kit includes:

    • Behr thermostat with gasket
    • Thermostat mounting hardware
    • 1 Gal Genuine BMW coolant

     

    This thermostat fits the following BMWs: 
    1998-2004 E39 BMW M5 

     

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    Packaged by Turner - Corporate Logo
    T#:3449
    Part#: 11531309667KIT
    Ships in 1-2 days
    $ 167.05 USD
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    $ 167.05 USD
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    This pacakge of six rubber cooling hoses for the E30 M3 includes most of the commonly replaced coolant lines on the S14. Set includes -
  • upper radiator hose from the large metal coolant pipe, #23 in the diagram
  • top thermostat hose to the large metal coolant pipe, #15 in the diagram
  • middle thermostat hose (T-shaped) to the small metal coolant pipe and to the water pump, #13 in the diagram
  • lower thermostat hose to the bottom of radiator, #22 in the diagram
  • lower radiator hose to coolant pipe, #24 in the diagram
  • expansion tank hose to the small metal coolant pipe, #17 in the diagram
    We use a mix if OE BMW and aftermarket hoses that we trust. This is the original E30 M3 Cooling Hose kit that we have been selling for 20 years. Looking for hose clamps too? We have OEM-style clamps for these too, select this in the options list below.

    This item fits the following BMWs:
    1988-1991 E30 BMW M3
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    Packaged by Turner - Corporate Logo
    T#:41661213
    Part#: 11537577014TKT
    Ships in 1-2 days
    Sale - Save 8% $ 342.99

    This product was last offered at the strikethrough price on
    05-03-2026

    $ 316.08 USD
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    $ 342.99

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    $ 316.08 USD
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    Packaged by Turner - Corporate Logo
    T#:30397451
    Part#: 11531251041KT2
    Ships in 1-2 days
    $ 223.99

    This product was last offered at the strikethrough price on
    05-07-2026

    $ 222.99 USD
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    $ 222.99 USD
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    A well-known issue in BMW models is the water pump, which typically requires servicing every 60,000 miles. To ensure your vehicle's cooling system remains in peak condition, it's also advisable to replace the thermostat during this maintenance. Thankfully, Turner Motorsport has streamlined this process by combining all the necessary parts into one convenient kit.

    If you're aiming to maintain and boost your BMW's cooling system, look no further than this premium kit, expertly assembled by the enthusiasts at Turner Motorsport!

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    Packaged by Turner - Corporate Logo
    T#:557214
    Part#: E9XM3BCKT
    Ships in 4 Business Days
    $ 632.99

    This product was last offered at the strikethrough price on
    02-27-2026

    $ 551.99 USD
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    To make sure you are not left stranded on the side of the road with an overheated engine, we have put together this Basic Cooling System Service kit. This kit contains all of the most-likely-to-fail components, giving you peace of mind knowing your engine will continue to run cool for another 60,000+ miles.
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    Packaged by Turner - Corporate Logo
    T#:557321
    Part#: E9XM3PCKT2
    Ships in 5 Business Days
    $ 2,321.15 USD
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    $ 2,321.15 USD
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    To ensure your BMW keeps cool on the track, we have built out our new High Performance Cooling System Upgrade kits. Featured in this kit is everything you will need to redo your cooling system from top to bottom with OEM components, with select stock components swapped out for the high performance alternative!
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    Packaged by Turner - Corporate Logo
    T#:557320
    Part#: E9XM3PCKT
    Ships in 5 Business Days
    $ 2,335.08 USD
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    $ 2,335.08 USD
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    To ensure your BMW keeps cool on the track, we have built out our new High Performance Cooling System Upgrade kits. Featured in this kit is everything you will need to redo your cooling system from top to bottom with OEM components, with select stock components swapped out for the high performance alternative!
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    Packaged by Turner - Corporate Logo
    T#:338252
    Part#: 11531309667KIT
    Ships in 4 Business Days
    Sale - Save 3% $ 212.99

    This product was last offered at the strikethrough price on
    05-03-2026

    Starting at $ 206.38 USD
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    This product was last offered at the strikethrough price on
    05-03-2026

    Starting at $ 206.38 USD
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    This pacakge of six rubber cooling hoses for the E30 M3 includes most of the commonly replaced coolant lines on the S14. Set includes -
  • upper radiator hose from the large metal coolant pipe, #23 in the diagram
  • top thermostat hose to the large metal coolant pipe, #15 in the diagram
  • middle thermostat hose (T-shaped) to the small metal coolant pipe and to the water pump, #13 in the diagram
  • lower thermostat hose to the bottom of radiator, #22 in the diagram
  • lower radiator hose to coolant pipe, #24 in the diagram
  • expansion tank hose to the small metal coolant pipe, #17 in the diagram
    We use a mix if OE BMW and aftermarket hoses that we trust. This is the original E30 M3 Cooling Hose kit that we have been selling for 20 years. Looking for hose clamps too? We have OEM-style clamps for these too, select this in the options list below.

    This item fits the following BMWs:
    1988-1991 E30 BMW M3
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    Packaged by Turner - Corporate Logo
    T#:48160254
    Part#: 11515A81BE9KT2
    Ships in 1-2 days
    New Item
    $ 809.99

    This product was last offered at the strikethrough price on
    08-12-2026

    $ 808.99 USD
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    $ 808.99 USD
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    It is important that your coolant system is serviced at regular intervals to ensure a long life. Over time, coolant systems are exposed to high temperatures and repeated thermal cycling, which causes warping, cracking, and hardening of plastics and rubber components in the coolant system. This can lead to coolant leaks and overheating, which can result in extensive engine damage if not resolved in a timely manner. This Water Pump & Thermostat kit helps to address a few of the most problematic parts, replacing these items entirely to keep your cooling system running optimally and efficiently.
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    Packaged by Turner - Corporate Logo
    T#:30463918
    Part#: 11510393340KT3
    Ships in 1-2 days
    $ 266.99 USD
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    $ 266.99 USD
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    Maintain your BMW's cooling system and avoid costly repairs with our all-inclusive Water Pump and Thermostat Replacement Kit, expertly crafted by enthusiasts at Turner Motorsport. Designed specifically for your BMW model, this kit ensures proper engine operation at optimal temperatures, preventing overheating and extending engine life.

    Key Benefits:

    Comprehensive Kit: Simplify your cooling system overhaul with all necessary components in one package. High-Quality Parts: Each component meets or exceeds OEM standards, ensuring reliable performance and longevity. Optimal Cooling Performance: Regular water pump and thermostat replacement every 60,000 miles maintains peak cooling efficiency. Enhanced Reliability: Premium components like the Wahler Thermostat and Graf Water Pump ensure durable, long-lasting performance. Why Choose This Kit:

    Maximize Cooling System Performance: Replacing your water pump and thermostat simultaneously ensures your BMW’s cooling system operates efficiently. Protect Your Engine: Properly flushing and refilling your cooling system with Genuine BMW coolant guarantees optimal freeze protection and corrosion resistance. Convenient and Cost-Effective: Combining all essential parts in one kit simplifies maintenance and ensures a thorough, lasting repair. Planning a cooling system overhaul? Opt for this comprehensive thermostat and water pump replacement kit for a lasting repair.

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    Packaged by Turner - Corporate Logo
    T#:339091
    Part#: TMS16426
    Ships on Dec 22, 2026
    Sale - Save 14% $ 628.99

    This product was last offered at the strikethrough price on
    06-15-2026

    Starting at $ 539.49 USD
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    This product was last offered at the strikethrough price on
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    This is a compete cooling system overhaul kit, which includes all of the common Z3 M52 cooling system failure parts bundled into a complete package. This cooling system package is for the 1997-1998 Z3 2.8 Roadster and 1998-2000 MZ3 M Roadster or M Coupe.

    The Z3 cooling system's primary cooling components are prone to failure within 60k miles (or less in many cases). A failure in the cooling system can lead to overheating and catastrophic engine failure. Don't gamble your engine! By replacing these core items preventatively, such as the radiator & waterpump, you are defusing what could be a ticking cooling system time bomb. And if you've had a failure of one of these parts, now is the time to refresh your cooling system. Our kit includes one OEM Behr radiator, an Original BMW waterpump (with updated composite impeller and O-ring), thermostat (complete with O-ring), aluminum thermostat housing, profile gasket, radiator cap and new hoses (as pictured).

    Optional items (which can be added below):
    - Upgrade the waterpump to a Stewart/EMP High Performance pump
    - Original BMW antifreeze
    - Add a new coolant expansion tank (known for cracking)

    Buy as a package and save!!

    This cooling system overhaul kit fits the following BMWs:
    1997-1998 Z3 2.8 M52 Roadster
    1998-2000 Z3 M Roadster, M Coupe
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    Packaged by Turner - Corporate Logo
    T#:339093
    Part#: TMS16427
    In Stock
    $ 845.99

    This product was last offered at the strikethrough price on
    07-15-2026

    Starting at $ 717.18 USD
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    Starting at $ 717.18 USD
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    This is a compete cooling system overhaul kit, which includes all of the common Z3 cooling system failure parts bundled into a complete package.

    The Z3 cooling system's primary cooling components are prone to failure within 100k miles (or less in certain cases). A failure in the cooling system can lead to overheating and catastrophic engine failure. Don't gamble your engine! By replacing these core items preventatively, such as the radiator & waterpump, you are defusing what could be a ticking cooling system time bomb. And if you've had a failure of one of these parts, now is the time to refresh your cooling system. Our kit includes one radiator, OE BMW water pump (with composite impeller and O-ring), OEM thermostat and housing (complete with sensor and gasket), radiator cap, expansion tank, and new hoses (as pictured).

    Optional items (which can be added below):
    - Upgrade the waterpump to a Stewart/EMP High Performance pump
    - Original BMW antifreeze
    - Aluminum water pump pulley (stock plastic ones are known to crack)
    - Cooling fan clutch

    Buy as a package and save!!

    This cooling system overhaul kit fits the following BMWs:
    1999-2002 Z3 2.3 2.5i 2.8 3.0
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    Packaged by Turner - Corporate Logo
    T#:338650
    Part#: TMS16418
    Ships in 1 day
    Starting at $ 713.99 USD
    Starting at $ 713.99 USD
    This cooling package for the E30 M3 consists of all of the major components on the S14's cooling system. There are no major weak points to the E30's cooling system, unless you count skipped maintenance. The entire system is serviceable in individual components so you don't need to buy a complete package of parts. Many of the indivdual parts are on our site but we have setup this package to cover all or most of what you would need to perform a major overhaul. This overhaul package consists of an Genuine BMW radiator and then you build the package from there. Add hoses, sensors, water pumps, thermostats, gaskets, hose clamps, and more. We also sell the Original BMW antifreeze to finish off the job.

    Any problems with the cooling system are likely electrical. Sensors become corroded and fail over time which will send the incorrect signal to the corresponding unit, including the engine computer. Diagnosis of electrical type problems is easy and repair with the OEM Bosch or OE BMW sensors is not too expensive for a car like this. Electrical connections, particularly solder joints, can also become brittle and fail. These are not helped by the intense vibrations of the S14.

    Top Turner Tip for a healthy S14!
    E30 M3s always seem to have cooling problems at the most inconvenient time. If the temp gauge starts rising in the summer months first check and make sure your auxiliary cooling fan is working if it's not it's most likely the switch or the wiring going to the switch. Also remember that the E30 instrument conductor plate can make the gauge read whacky try tapping the gauge if it seems like it's acting up. When it's time to do a water pump (which weeps through a hole on the bottom before it goes completely) take a good look at the radiator too its not expensive and you have to remove it to install the pump anyway.

    Use the options below to build your package.

    This cooling package fits the following BMWs:
    1988-1991 E30 BMW M3
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    Packaged by Turner - Corporate Logo
    T#:340254
    Part#: TMS215326
    Ships in 1 day
    Starting at $ 1,233.54 USD
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    Starting at $ 1,233.54 USD
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    This cooling overhaul will cover just about everything you could replace on the 328 SULEV's cooling system. We start with the basic water pump and thermostat bundle. These are already vital to the health and durability of the N51 328 SULEV. But to properly maintain these cars for the long term, the rest of the cooling system must be refreshed and preventatively replaced. Here you can add a radiator, expansion tank, cooling hoses, and the BMW antifreeze. This package fits 128/328 SULEV with N51 engine and manual transmission.

    The sophisticated electronics of the ECU and water pump means catastrophic overheating should be a thing of the past. But the downside is that the electronics can shut down without any warning or symptoms. And troubleshooting is equally frustrating since the water pump electronics are not readable or serviceable. There are several clues to a faulty thermostat or water pump - the fan runs at full speed all the time (even immediately on a cold start), pending (soft) fault code for low coolant flow, or the water pump can be heard running constantly. But when the pump fails it's an immediate shut down of the engine which can be a major inconvenience and lead to additional repairs that might have been avoided with preventative maintance. We recommend a full cooling system overhaul on the E90/E92 every 80-90,000 miles and to check for soft/pending codes at every 5,000 mile service .


    Base Cooling Overhaul Package - Water Pump and Thermostat
    (click to expand)
    Includes:
    + Genuine BMW electric water pump, p/n 11517586925
    + mounting screws for water pump (set of 3), p/n 11510392553
    + OEM Behr thermostat, p/n 11537549476
    + Original BMW connecting hose from thermostat to water pump, p/n 11537521049
    + OEM-style hose clamps for hose (x 2)

    The water pump on the N51 engine has more cooling responsibilities than ever before. The good news is that the pump only works when, and only as much, as it needs to. That means the system can actually stop the pump when it doesn't need to be running. The bad news is that it's now an electrical part, so a failure is usually immediate and with no warning. The preventative replacement is your only insurance from a very inconvenient and costly breakdown in the future. Plus you get the very latest BMW water pump design with any improvements they've made since your original pump was installed.
    Coolant Hoses
    (click to expand)
    With regular driving the hoses should last a very long time. Even the plastic connectors seem to be holding up well. But as a preventative measure new hoses are recommended. We have also seen issues with re-using hoses as the spring connectors get weak over time and may not have the strength to hold the hose in place. They seem to have a tough time holding tension especially when they have been removed and reinstalled. In the interests of a thorough overhaul we recommend replacing these 328 SULEV water hoses during this job (see diagram):
    • 17127531579, upper radiator hose (A)
    • 17127531581, lower radiator hose (B)
    • 11537552396, water pump to engine ©
    • 11537545890, thermostat to cylinder head (includes new o-ring) (D)
      There are other hoses too but they are not often replaced during a radiator swap (radiator vent hose and heater core hose) and they don't see much wear. We offer these as well if you want a complete set (see Additional Items at the bottom of the page).
    Expansion Tank Options
    (click to expand)
    The expansion tank on the 328 SULEV is not prone to failures (unlike previous 3-series cars) so a new one is not strictly required. There aren't many seams or stress points for it to crack and we haven't heard of too many issues. But we wanted to offer it as part of a complete overhaul in case you want to cover everything. Simiarly, the level sensor is not required unless you're getting erroneous 'low coolant' warnings from the dash/iDrive. We do strongly recommend replacing the cap because that is designed to be the weak point in the system. The cap is what regulates the pressure inside the system and it should be replaced every few years anyway.
    Coolant Temp Sensors
    (click to expand)
    There are two coolant temp sensors on the 328 SULEV - in the lower radiator hose and in the cylinder head. Both feed coolant temps to the ECU to regulate the water pump and cooling fan. You should replace the one in the lower radiator hose because it's one of the main sources for coolant leaks, especially when the old sensor is re-used in a new hose. The sensor in the cylinder head is not as prone to leaks and it's easily accessible so you don't have to replace it right away. But we offer it with the package in case you want to have a complete cooling system overahul.
    13621433077, coolant temp sensor (in lower radiator hose)
    13621433076, coolant temp sensor (in cylinder head, next to oil filter housing)

    BUY AS A PACKAGE AND SAVE $$!

    This cooling package fits the following BMWs with the N51 engine and a manual transmission:
    2008-2012 E82 BMW 128i SULEV
    2007-2011 E90 BMW 328i 328xi 328i xDrive SULEV - Sedan
    2007-2012 E91 BMW 328i 328xi 328i xDrive SULEV - Wagon
    2007-2013 E92 BMW 328i 328xi 328i xDrive SULEV - Coupe
    2007-2013 E93 BMW 328i SULEV - Convertible
    Note: not for cars that have the dealer-installed auxiliary heating option. Some of the hoses are different with that option. It's not a very common option in North America (except in parts of Canada) but there are hoses that are specific to that option.


    Click on the options for your kit below and then click "update price" for your kit total.
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    Packaged by Turner - Corporate Logo
    T#:554085
    Part#: 11531436386KT3
    In Stock
    Sale - Save 24% $ 119.99

    This product was last offered at the strikethrough price on
    05-03-2026

    $ 91.13 USD
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    When it comes time to replace your thermostat, be sure you have everything you need. This kit includes everything you need to replace your thermostat, including the thermostat.

    Kit includes:

    • Rein thermostat
    • Thermostat mounting hardware
    • 1 liter of coolant

     

    This item fits the following BMWs: 
    1999-2003  E39 BMW  540i 
     

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    Packaged by Turner - Corporate Logo
    T#:24079594
    Part#: E70N52WPTKT
    Ships in 1-2 days
    $ 896.99

    This product was last offered at the strikethrough price on
    06-18-2026

    $ 889.99 USD
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    BMW's electric water pumps are known to fail around 80,000 to 100,000 miles, leaving you stranded on the side of the road. Don't risk overheating your engine, service your water pump and thermostat with this basic kit! Kit includes: OEM Thermostat Genuine BMW Water pump Genuine BMW Coolant - 1 Gallon Mounting hardware required for both the thermostat and water pump
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    Packaged by Turner - Corporate Logo
    T#:554725
    Part#: E9XM3CSO2KT
    Ships in 4 Business Days
    $ 1,810.99 USD
    $ 1,810.99 USD
    This is a compete cooling system overhaul kit, which includes all the common cooling system failure parts bundled into a complete package.


    Packaged by Turner - Corporate Logo
    T#:554083
    Part#: 11531437526KT2
    Ships in 1 Business Day
    Sale - Save 3% $ 189.99

    This product was last offered at the strikethrough price on
    05-29-2026

    $ 183.97 USD
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    When it comes time to replace your thermostat, be sure you have everything you need. This kit includes everything you need to replace your thermostat, including the thermostat.

    Kit includes:

    • Behr thermostat with O-ring
    • Thermostat mounting hardware
    • 1 Gallon BMW coolant

     

    This item fits the following BMWs: 

    1997-1998  E39 BMW  540i

     

     

    When it comes time to replace your thermostat, be sure you have everything you need. This kit includes everything you need to replace your thermostat, including the thermostat.

    Kit includes:

    • Behr thermostat with O-ring
    • Thermostat mounting hardware
    • 1 Gallon BMW coolant
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    Packaged by Turner - Corporate Logo
    T#:554104
    Part#: 11517839062KT10
    Ships in 4 Business Days
    $ 1,796.35 USD
    $ 1,796.35 USD
    This is a compete cooling system overhaul kit, which includes all the common cooling system failure parts bundled into a complete package.
    Packaged by Turner - Corporate Logo
    T#:338775
    Part#: TMS216193
    Ships in 1 day
    $ 658.99

    This product was last offered at the strikethrough price on
    05-06-2026

    Starting at $ 632.99 USD
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    The cooling system is one of the major weak points on the N62 engine in the 550i/650i. The water pump itself won't last more than 100,000 miles in most cases and the engine itself is prone to coolant leaks from multiple locations. So a major 550i cooling system overhaul should be planned before the 100,000 mile mark. Aside from obvious leaks the 550i water pump will also squeal or screech indicating the bearings inside have worn. This package covers the water pump, thermostat, and radiator for the 2006-2010 E60 550i and E63 650i with a manual transmission.

    The entire cooling system on the 550i is susceptible to leaks and poor performance. The condition of the rest of the cooling system should be considered along with the water pump and thermostat. Replacing the water pump will expose the front of the V8 engine where more problem areas may appear so plan accordingly. The biggest problem is the V8 valley pan gaskets and inner coolant tube seals. The tube carrying coolant through the valley is prone to leaking and replacement is a major job (see our valley pan pipe kit here). Additional items recommended to be replaced during the water pump job are: cooling hoses, expansion tank and cap, temp sensors, drive belts, and pulleys and tensioners.

    Base 550i/650i Cooling Package includes:

    • OEM Behr radiator (17117519210)
    • OEM water pump (11517586779)
    • water pump pipe (back of pump to engine block) (11511439976)
    • OEM thermostat (11537586885)
    • BUY AS A PACKAGE AND SAVE $$!

      This item fits the following BMWs:
      2006-2010 E60 BMW 550i with manual transmission
      2006-2011 E63 BMW 650i with manual transmission
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    Packaged by Turner - Corporate Logo
    T#:340205
    Part#: TMS215350
    Ships in 1 day
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    07-31-2026

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    This is a compete cooling system overhaul kit, which includes all the common cooling system failure parts bundled into a complete package. This cooling system package is for the 2008-2010 E60 528i/528xi models with an automatic transmission (N52 engine).

    Much of the later E60 cooling system is strong and reliable compared to the previous generation 5-series models. But there is still the potential for serious cooling system and engine-related failures. On the N52 engine the electric water pump is the weakest link. It will fail without much warning and shut down the engine. Preventative replacement is the best course of action and the water pump and thermostat should be done before they reach 60,000 miles. Several other cooling components are due for replacement by 100,000 miles to prevent other breakdowns. A failure in the cooling system can lead to overheating and catastrophic engine failure. Don't gamble your engine! By replacing these core items preventatively you are defusing what could be a ticking cooling system time bomb. And if you've had a failure of one of these parts, now is the time to refresh your entire cooling system.

    Our base kit comes with the OEM Behr thermostat, Original BMW electric water pump with mounting screws, and the u-shaped hose between the pump and thermostat. From there you can add additional items to complete the overhaul - radiator, expansion tank, cap, and new radiator hoses..

    E60 528i Automatic Radiator Options. There are two styles of radiators for the E60 6-cylinder and automatic transmission: original and updated. You can use either radiator as long as you have the correct corresponding parts to go with it. Both radiators are still available from BMW or the OE supplier Behr. If it were up to us we would prefer the updated style because it won't cause any confusion down the road and it reduces the number of potential leak points by eliminating an unnecessary fitting.

    • Original, BMW #17117534914. This setup has an extra fitting for the engine oil heat exchanger along with a hose that attaches to the water pump pipe and heat exchanger. In order to use this radiator you must use the corresponding hose. This was the original setup as the car was built at the factory and is pictured in the radiator image to the right. At some point BMW stopped listing this part number in their official diagrams and used the 209 number below.
    • Updated, BMW #17117519209. This is the updated style from BMW. If your radiator was replaced at some point after 2010 it most likely has this radiator style. On this radiator they did away with the extra fitting for the heat exchanger. When looking at the ETK or RealOEM diagrams it will only list this radiator but with a note saying you also need two compensators (spacer blocks, #17117520335) and the hose (11537519494).

    Click here for diagrams of both E60 radiator options.

    E60 528i Cooling Hoses. There are a lot of hoses on the N52 engine. Not all of them need to be replaced during an overhaul but it would be a good idea. The hoses themselves don't wear but the metal spring clips on the connector lose their tension over time and that can lead to a leak. It's worse when re-using a hose after it's already been disconnected. Since our package includes the thermostat, water pump, and radiator we offer all of the hoses related to those components. Use the diagram on the right to see where each is connected in the engine bay. Evaluate your current hoses and then decide which ones to replace. One note about the lower radiator hose: when ordering a new hose you must order a new temp sensor. Do not reuse the original temp sensor as it will leak on the new hose.

    This item fits the following BMWs:
    2008-2010 E60 BMW 528i 528xi with automatic transmission

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    Packaged by Turner - Corporate Logo
    T#:5498481
    Part#: E46M5X2KT
    In Stock
    Sale - Save 4% $ 474.99

    This product was last offered at the strikethrough price on
    05-03-2026

    $ 456.76 USD
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    Prevent cooling issues and take service of your cooling system one step further with a Turner Motorsport Level 2 Cooling System Maintenance Kit. The experts at Turner have identified all of the common parts that fail on a BMW and included them all in this convenient kit. BMW has been designing notoriously failure-prone cooling systems since the late 1980s. The coolant capacity in most BMW engines is not sufficient to accommodate any driving or overheating near red zone temperatures. If the coolant reaches this critical temperature, it is common for thousands of dollars in damage to occur. Stop the problems before they arise. If your BMW has 80,000 miles or more, replace all of these components to ensure that your vehicle stays healthy. Avoid water pump failure, cracked thermostat housings, and expansion tank leaks, which all lead to overheating and subsequent damage. This kit was put together by Turner for a complete cooling system service. GEBA water pump with metal impeller Ecs aluminum water pump pulley Fan switch Thermostat and thermostat housing Sealing gaskets Expansion tank with level sensor, clamp and cap 1 Gallon Coolant Upper & lower radiator hoses Accessory drive belts Radiator drain plug
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    Packaged by Turner - Corporate Logo
    T#:554544
    Part#: 17113400013KT3
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    05-03-2026

    $ 854.60 USD
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    $ 854.60 USD

    This is a compete cooling system overhaul kit, which includes all the common cooling system failure parts bundled into a complete package. This cooling system package is for the E83 with the M54 engine. 

    A failure in the cooling system can lead to overheating and catastrophic engine failure. Don't gamble your engine! By replacing these core items preventatively, such as the thermostat housing, radiator, and waterpump, you are defusing what could be a ticking cooling system time bomb. And if you've had a failure of one of these parts, now is the time to refresh your entire cooling system. Keep on top of the cooling needs of your engine for your own piece of mind. Potential buyers also see the upside of a properly maintained car with receipts. 

     

     

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    Packaged by Turner - Corporate Logo
    T#:594349
    Part#: 17119071517KT1
    Ships in 1 Business Day
    Sale - Save 4% $ 895.99

    This product was last offered at the strikethrough price on
    05-03-2026

    $ 864.60 USD
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    05-03-2026

    $ 864.60 USD
    The ultimate cooling refresh kit - with aftermarket components, including an ECS Aluminum Pulley and featuring a GEBA water pump
    Packaged by Turner - Corporate Logo
    T#:557308
    Part#: E46NONMPCKT2
    In Stock at Vendor
    $ 1,520.99

    This product was last offered at the strikethrough price on
    06-15-2026

    $ 1,511.99 USD
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    If you plan to drive your BMW aggressively on the track, it is important that you upgrade your cooling system to avoid overheating. To ensure your BMW keeps cool on the track, we have built out our new High Performance Cooling System Upgrade kits. Featured in this kit is everything you will need to redo your cooling system from top to bottom with OEM components, with select stock components swapped out for the high performance alternative! This kit includes a high performance Mishimoto Radiator, for significantly better cooling than the stock radiator and full aluminum construction that won't crack from long term heat cycling, a performance Mishimoto 70*C thermostat, for lower temperature operation and increased cooling of the engine, and a Stewart High Performance Water Pump, for dramatically increased coolant flow at all RPMs. 

    Additional items included in this kit:

    • OEM Replacement Coolant Hoses
    • OEM Expansion Tank, Cap, and Level Sensor
    • OEM Belts, Tensioners, and Pulleys
    • OEM Auxiliary Fan Switch
    • Genuine BMW Hardware for Easy Installation
    • ECS Tuning Aluminum Water Pump Pulley - For increased reliability over the stock composite pulley
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    Packaged by Turner - Corporate Logo
    T#:557227
    Part#: E8XE9XN55ABCKT
    Ships in 4 Business Days
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    This product was last offered at the strikethrough price on
    05-03-2026

    $ 568.92 USD
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    Just like the rest of your vehicle's major systems, the cooling system must also be addressed periodically to ensure proper cooling and component reliability. Plastic and rubber components become brittle and prone to splitting or cracking after long periods of heating and cooling cycles, especially in colder climates! The coolant itself can degrade or become contaminated, leading to potential corrosion or freezing issues. Finally, thermostats and sensors can fail completely, preventing proper cooling and/or coolant temperature readings to become inaccurate.

    To make sure you are not left stranded on the side of the road with an overheated engine, we have put together this Basic Cooling System Service kit. This kit contains all of the most-likely-to-fail components, giving you peace of mind knowing your engine will continue to run cool for another 60,000+ miles.

    See kit contents below for all included components.

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    Packaged by Turner - Corporate Logo
    T#:48194755
    Part#: ZS54WPTKT2
    Ships on Dec 7, 2026
    New Item
    $ 1,022.99

    This product was last offered at the strikethrough price on
    07-16-2026

    $ 968.99 USD
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    $ 968.99 USD
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    It is important that your coolant system is serviced at regular intervals to ensure a long life. Over time, coolant systems are exposed to high temperatures and repeated thermal cycling, which causes warping, cracking, and hardening of plastics and rubber components in the coolant system. This can lead to coolant leaks and overheating, which can result in extensive engine damage if not resolved in a timely manner. This Water Pump & Thermostat kit helps to address a few of the most problematic parts, replacing these items entirely to keep your cooling system running optimally and efficiently.
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    Packaged by Turner - Corporate Logo
    T#:557310
    Part#: E46NONMPCKT4
    In Stock at Vendor
    $ 1,543.99

    This product was last offered at the strikethrough price on
    06-23-2026

    $ 1,540.99 USD
    $ 1,540.99 USD

    If you plan to drive your BMW aggressively on the track, it is important that you upgrade your cooling system to avoid overheating. To ensure your BMW keeps cool on the track, we have built out our new High Performance Cooling System Upgrade kits. Featured in this kit is everything you will need to redo your cooling system from top to bottom with OEM components, with select stock components swapped out for the high performance alternative! This kit includes a high performance Mishimoto Radiator, for significantly better cooling than the stock radiator and full aluminum construction that won't crack from long term heat cycling, a performance Mishimoto 70*C thermostat, for lower temperature operation and increased cooling of the engine, and a Stewart High Performance Water Pump, for dramatically increased coolant flow at all RPMs. 

    Additional items included in this kit:

    • OEM Replacement Coolant Hoses
    • OEM Expansion Tank, Cap, and Level Sensor
    • OEM Belts, Tensioners, and Pulleys
    • OEM Auxiliary Fan Switch
    • Genuine BMW Hardware for Easy Installation
    • ECS Tuning Aluminum Water Pump Pulley - For increased reliability over the stock composite pulley
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    Packaged by Turner - Corporate Logo
    T#:30861164
    Part#: 17137787039KT
    In Stock at Vendor
    Sale - Save 10% $ 1,934.99

    This product was last offered at the strikethrough price on
    05-03-2026

    $ 1,737.22 USD
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    $ 1,934.99

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    $ 1,737.22 USD


    Packaged by Turner - Corporate Logo
    T#:554546
    Part#: 11517527910KT17
    Ships in 1 Business Day
    Sale - Save 4% $ 1,016.99

    This product was last offered at the strikethrough price on
    05-03-2026

    $ 978.39 USD
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    $ 1,016.99

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    $ 978.39 USD

    This is a compete cooling system overhaul kit, which includes all the common cooling system failure parts bundled into a complete package. This cooling system package is for the E39 528i with the M52 engine. 

    A failure in the cooling system can lead to overheating and catastrophic engine failure. Don't gamble your engine! By replacing these core items preventatively, such as the thermostat housing, radiator, and waterpump, you are defusing what could be a ticking cooling system time bomb. And if you've had a failure of one of these parts, now is the time to refresh your entire cooling system. Keep on top of the cooling needs of your engine for your own piece of mind. Potential buyers also see the upside of a properly maintained car with receipts. 

     

    This kit fits the following BMWs:

    09/1998 - 2000 E39 528i

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    Packaged by Turner - Corporate Logo
    T#:337992
    Part#: 11531436408
    Ships in 4 Business Days
    Starting at $ 42.99 USD
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    Starting at $ 42.99 USD
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    OEM Replacement Lower Radiator Hose for E46 3 series (Not M3). We recommend replacing the Coolant Temperature Sensor while replacing this hose as the original sensor is often damaged while trying to remove it from the old hose.

    This lower radiator hose fits the following BMWs:
    1999-2000 E46 3 Series Sedan/Wagon - 323i & 328i
    1999-2000 E46 3 Series Coupe/Conbertible - 323Ci & 328Ci
    2001-2005 E46 3 Series Sedan/Wagon - 325i, 325xi, 330i, 330xi
    2001-2006 E46 3 Series Coupe/Convertible - 325Ci, 330Ci
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    Packaged by Turner - Corporate Logo
    T#:557927
    Part#: E46M3BCKT1
    In Stock at Vendor
    Sale - Save 29% $ 675.99

    This product was last offered at the strikethrough price on
    07-15-2026

    $ 479.96 USD
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    $ 675.99

    This product was last offered at the strikethrough price on
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    $ 479.96 USD
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    Just like the rest of your vehicle's major systems, the cooling system must also be addressed periodically to ensure proper cooling and component reliability. Plastic and rubber components become brittle and prone to splitting or cracking after long periods of heating and cooling cycles, especially in colder climates! The coolant itself can degrade or become contaminated, leading to potential corrosion or freezing issues. Finally, thermostats and sensors can fail completely, preventing proper cooling and/or coolant temperature readings to become inaccurate.

    To make sure you are not left stranded on the side of the road with an overheated engine, we have put together this Basic Cooling System Service kit. This kit contains all of the most-likely-to-fail components, giving you peace of mind knowing your engine will continue to run cool for another 60,000+ miles.

    See kit contents below for all included components.

    Show More Show Less

    Packaged by Turner - Corporate Logo
    T#:557246
    Part#: E46M3BCKT
    In Stock
    Sale - Save 8% $ 664.99

    This product was last offered at the strikethrough price on
    07-16-2026

    $ 613.59 USD
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    $ 664.99

    This product was last offered at the strikethrough price on
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    $ 613.59 USD
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    Just like the rest of your vehicle's major systems, the cooling system must also be addressed periodically to ensure proper cooling and component reliability. Plastic and rubber components become brittle and prone to splitting or cracking after long periods of heating and cooling cycles, especially in colder climates! The coolant itself can degrade or become contaminated, leading to potential corrosion or freezing issues. Finally, thermostats and sensors can fail completely, preventing proper cooling and/or coolant temperature readings to become inaccurate.

    To make sure you are not left stranded on the side of the road with an overheated engine, we have put together this Basic Cooling System Service kit. This kit contains all of the most-likely-to-fail components, giving you peace of mind knowing your engine will continue to run cool for another 60,000+ miles.

    See kit contents below for all included components.

    Show More Show Less

    Packaged by Turner - Corporate Logo
    T#:554122
    Part#: 17127510952KT10
    Back Ordered
    $ 1,883.99

    This product was last offered at the strikethrough price on
    07-16-2026

    $ 1,839.99 USD
    $ 1,839.99 USD
    This is a compete cooling system overhaul kit, which includes all the common cooling system failure parts bundled into a complete package. This cooling system package is for the E46 M3 with the S54 engine. 

    A failure in the cooling system can lead to overheating and catastrophic engine failure. Don't gamble your engine! By replacing these core items preventatively, such as the thermostat housing, radiator, and waterpump, you are defusing what could be a ticking cooling system time bomb. And if you've had a failure of one of these parts, now is the time to refresh your entire cooling system. Keep on top of the cooling needs of your engine for your own piece of mind. Potential buyers also see the upside of a properly maintained car with receipts. 
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    Packaged by Turner - Corporate Logo
    T#:338251
    Part#: 11510007042X
    Ships in 1 day
    Starting at $ 470.99 USD
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    Starting at $ 470.99 USD
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    Don't take your car's cooling system for granted! One of the biggest weak points is the cooling system. Replacing your waterpump will go a long way for keeping your car on the road and operating properly.

    This item fits the following BMWs:
    1992-1995 E34 BMW 530i 540i
    1992-1994 E32 BMW 740i 740ill
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    Packaged by Turner - Corporate Logo
    T#:338700
    Part#: TMS14414
    Ships in 1 Business Day
    $ 597.99

    This product was last offered at the strikethrough price on
    06-15-2026

    Starting at $ 586.60 USD
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    This is a compete cooling system overhaul kit, which includes all the common M52 cooling system failure parts bundled into a complete package. This cooling system package is for the 1997-1998 528i with the M52 engine with either the manual or automatic transmission.

    Much of the E39 cooling system is shared with the 3-series cars of the same era. Which means the potential for serious cooling system and engine-related failures. Several of the primary cooling components are prone to failure within 60k miles (or less in many cases). A failure in the cooling system can lead to overheating and catastrophic engine failure. Don't gamble your engine! By replacing these core items preventatively, such as the radiator & waterpump, you are defusing what could be a ticking cooling system time bomb. And if you've had a failure of one of these parts, now is the time to refresh your cooling system. Our kit includes one OEM Behr radiator, an Original BMW water pump (with updated composite impeller), thermostat, radiator cap, and new radiator hoses.

    Basic Kit Contents:
    17111702969, radiator (OEM Behr)
    11517527799, water pump (OE BMW)
    11537511580, 88�C thermostat (OEM Behr/Hella)
    11531740832, upper radiator hose (OEM Rein/CRP)
    11531740481, lower radiator hose (OEM Rein/CRP)
    17111427156, expansion tank hose (OEM Rein/CRP)
    17111742231, expansion tank cap (OEM Behr/Hella)

    Cooling Kit Options:
    E39 Water Pump Options
    (click to expand)
    OE BMW with composite impeller. The original BMW water pumps had plastic impellers which degraded and failed. The latest design uses composites that are much better and will not corrode. Compared to a metal impeller, the composite is lighter so it's more efficient and it will not wear out the bearings. We don't even offer the metal impeller pumps with this kit because the BMW composite one is so much better.
    Stewart high performance. The ultimate in M50 water pumps! It features a stainless steel impeller, heavy-duty bearings, a better o-ring seal, and flows 20% more than the stock pump. If indestructible is what you're looking for, this is the pump to go with. It also comes with a lifetime warranty for piece of mind.
    E39 Expansion Tank
    (click to expand)
    The original expansion tank is prone to cracks and leakage. Again - it's made from a weak plastic. The material has improved over the years but the only option remains an OEM plastic tank. It's a good idea to replace it if you're doing a whole overhaul. Don't re-use the original tank if you're going to the trouble of replacing everything else!
    E39 Thermostat Housing
    (click to expand)
    The original BMW plastic thermostat housing is brittle and does not seal well. We only sell it under protest. Instead we've been selling this aluminum housing for the last 20+ years. The aluminum does not have the same shortcomings as the plastic one. We made this item an option in case you already have the aluminum housing.

    Use the options below to build your cooling package.

    This cooling system overhaul kit fits the following BMWs:
    1997-1998 E39 BMW 528i
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    Packaged by Turner - Corporate Logo
    T#:15677507
    Part#: 11531436410-KT
    Ships in 3 Business Days
    Sale - Save 10% $ 285.99

    This product was last offered at the strikethrough price on
    06-16-2026

    $ 258.00 USD
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    $ 285.99

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    $ 258.00 USD
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    The cooling hoses on your BMW are exposed to vast temperature changes, as well as exposure the elements. Over time, they will fail and can cause you to be stranded, or a worse failure. Turner Motorsport has created a kit that includes all of the necessary cooling system hoses as well as a gallon of coolant to correctly service your cooling system. See kit contents tab for a list of included components
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    Packaged by Turner - Corporate Logo
    T#:557220
    Part#: E6XN52BCKT
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    Sale - Save 2% $ 685.99

    This product was last offered at the strikethrough price on
    05-03-2026

    $ 670.84 USD
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    $ 685.99

    This product was last offered at the strikethrough price on
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    $ 670.84 USD
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    Just like the rest of your vehicle's major systems, the cooling system must also be addressed periodically to ensure proper cooling and component reliability. Plastic and rubber components become brittle and prone to splitting or cracking after long periods of heating and cooling cycles, especially in colder climates! The coolant itself can degrade or become contaminated, leading to potential corrosion or freezing issues. Finally, thermostats and sensors can fail completely, preventing proper cooling and/or coolant temperature readings to become inaccurate.

    To make sure you are not left stranded on the side of the road with an overheated engine, we have put together this Basic Cooling System Service kit. This kit contains all of the most-likely-to-fail components, giving you peace of mind knowing your engine will continue to run cool for another 60,000+ miles.

    See kit contents below for all included components.

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    Packaged by Turner - Corporate Logo
    T#:5416786
    Part#: 11531436408TMSKT
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    Sale - Save 6% $ 307.99

    This product was last offered at the strikethrough price on
    05-03-2026

    $ 290.02 USD
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    This product was last offered at the strikethrough price on
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    $ 290.02 USD
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    The cooling hoses on your BMW are exposed to vast temperature changes, as well as exposure the elements. Over time, they will fail and can cause you to be stranded, or a worse failure. Turner Motorsport has created a kit that includes all of the necessary cooling system hoses as well as a gallon of coolant to correctly service your cooling system. Kit includes: Genuine BMW Antifreeze - 1 Gallon 2 Heater hoses Expansion tank hose Water pipe to expansion tank hose Heater inlet pipe Water pipe Upper radiator hose Lower radiator hose
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    T#:638920
    Part#: 11531436408KT3
    Ships in 3 Business Days
    Sale - Save 18% $ 399.99

    This product was last offered at the strikethrough price on
    05-03-2026

    $ 326.35 USD
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    Sale - Save 18%
    $ 399.99

    This product was last offered at the strikethrough price on
    05-03-2026

    $ 326.35 USD
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    The cooling hoses on your BMW are exposed to vast temperature changes, as well as exposure the elements. Over time, they will fail and can cause you to be stranded, or a worse failure. We have created a kit that includes ECS Tuning silicone radiators hoses and all other necessary cooling system hoses as well as a gallon of coolant to correctly service your cooling system.
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    Packaged by Turner - Corporate Logo
    T#:584232
    Part#: 17112283345KT
    Ships in 1-2 days
    $ 250.99 USD
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    $ 250.99 USD
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    The expansion tank in your BMW is a vital component of the cooling system, and because of the constant abuse from heat and temperature changes, it often fails. This kit contains all of the basic items needed for a tank replacement.
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    Packaged by Turner - Corporate Logo
    T#:557231
    Part#: E34525BCKT
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    This product was last offered at the strikethrough price on
    02-27-2026

    $ 235.08 USD
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    Sale - Save 11%
    $ 264.99

    This product was last offered at the strikethrough price on
    02-27-2026

    $ 235.08 USD
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    Just like the rest of your vehicle's major systems, the cooling system must also be addressed periodically to ensure proper cooling and component reliability. Plastic and rubber components become brittle and prone to splitting or cracking after long periods of heating and cooling cycles, especially in colder climates! The coolant itself can degrade or become contaminated, leading to potential corrosion or freezing issues. Finally, thermostats and sensors can fail completely, preventing proper cooling and/or coolant temperature readings to become inaccurate.

    To make sure you are not left stranded on the side of the road with an overheated engine, we have put together this Basic Cooling System Service kit. This kit contains all of the most-likely-to-fail components, giving you peace of mind knowing your engine will continue to run cool for another 60,000+ miles.

    See kit contents below for all included components.

    Show More Show Less
    Packaged by Turner - Corporate Logo
    T#:30397455
    Part#: 11518516205KT2
    Ships in 10 Business Days
    Sale - Save 5% $ 299.99

    This product was last offered at the strikethrough price on
    05-03-2026

    $ 284.24 USD
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    Sale - Save 5%
    $ 299.99

    This product was last offered at the strikethrough price on
    05-03-2026

    $ 284.24 USD
    Free Shipping on orders $49 and up

    Regular maintenance of your BMW's cooling system is crucial, with the water pump being a known weak point across all models. To ensure optimal performance, it's recommended to service the water pump every 60,000 miles and replace the thermostat simultaneously. Turner Motorsport makes this process seamless with our comprehensive Water Pump & Thermostat Replacement Kit.

    Why Choose Our Kit?

    Convenience: All essential parts are bundled in one kit. Quality: Components from trusted brands like MAHLE and Graf. Reliability: High-quality parts ensure a perfect fit and long-lasting performance. Value: Save time and money with our complete kit. Kit Contents:

    MAHLE Thermostat (Part #: 11518512234) Graf Water Pump Assembly (Part #: 11518516205) Genuine BMW Thermostat Gasket (Part #: 11518516207) Genuine BMW Bolt (Part #: 11518512449) Genuine BMW Bolt (M6x30) (Part #: 07119906123) Genuine BMW Coolant/Antifreeze (Concentrate, 1 Gallon) (Part #: 82141467704) Ready for a Cooling System Overhaul?

    Opt for Turner Motorsport's Water Pump & Thermostat Replacement Kit for a hassle-free, effective repair that keeps your BMW running cool and smooth.

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