BMW Cooling System Parts & Accessories for BMW 1 Series E82 (2008-2013)

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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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Redline - Corporate Logo
T#:640437
Part#: 81205
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$ 68.99 USD
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Red Line SuperCool Concentrate fortified with WaterWetter is a concentrated antifreeze/coolant designed to maximize the performance of your cooling system with superior protection against cavitation corrosion/erosion. Using SuperCool Concentrate diluted with distilled water protects the entire cooling system keeping new components like new for 5 years/150,000 miles and prevents further damage to older components. Red Line’s proprietary coolant additive formula enhances the fluid’s ability to transfer heat, reducing operating temperatures by up to 20*F and prolonging the life of the entire cooling system. Red Line's SuperCool is an OAT coolant that is a Nitrate and Silicate Free product with its own proprietary corrosion technology to offer superior protection for aluminum engines found in all European vehicles, performance vehicles, as well as other applications. SuperCool will not void the factory warranty either. It can be used to top off the existing coolant of any BMW and will not cause any ill-effects on the cooling system because it is silicate and nitrate free. It is still better to flush it out and switch completely to SuperCool to get all the full benefits of the product in performance and protection.
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Rein - Corporate Logo
T#:402113
Part#: 17127618510
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Acts as a vent hose between the upper radiator hose and the expansion tank. Runs the length of the top of the radiator.
Genuine BMW - Corporate Logo
T#:14976
Part#: 13627582842
In Stock
8% off MSRP $ 131.99

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$ 120.99 USD
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8% off MSRP
$ 131.99

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Genuine BMW Crankshaft Sensor -
This item fits the following BMW Chassis:
E71,E82,E90,E92,E93,F06,F10,F12,F13,F15,F16,F22,F25 X3,F26 X4,F30,F32,F33,F34,F36,F80 M3,F82 M4,F83

Fits BMW Engines including:
N51,N55,S55

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Race German - Corporate Logo
T#:6827888
Part#: RGCTSA1/8NPT
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$ 35.99 USD
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Race German has devoted themselves to providing quality products for late model BMWs that cover both street and track applications. Race German has now grown their catalog to a wide variety of models and products geared towards keeping your car looking and running nice. For those looking to install an aftermarket coolant temp gauge, Race German has the perfect accessory for you! This adapter is machined out of aluminum and splices into your upper radiator hose. Perfect for use with Race German's E30 temperature gauge but has compatibility with a wire variety of other cars as well! Features: Tapped for 1/8NPT sized sensor 38mm diameter outlets which fit most BMW hoses Includes 2x hose clamps **Does not include temp sensor
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ECS - Corporate Logo
T#:599848
Part#: 004481LA01
In Stock
Sale - Save 15% $ 113.99

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$ 96.89 USD
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The perfect upgrade for your connection between your thermostat and cylinder head. Designed using durable silicone and billet aluminum to greatly outlast the OE rubber and plastic combination. Some of the weakest points of the cooling systems in BMW's can come down to the OE plastic fittings breaking down from the constant changes in temperature, softening these plastic components. When this happens, even simply moving the hose slightly could cause the fitting to crack, causing the coolant to leak all over. The ECS design silicone hose with billet aluminum adapter retains OE fitment with superior strength to not only handle the performance, but also stand up to the wear and tear of a daily driver. Features: Manufactured from billet 6061-T6 and type III anodized for exceptional durability and corrosion resistance. Much stronger part than OEM plastic Will not become brittle and fatigue over time due to thermal cycling. This will prevent the part from breaking during removal and re-installation. Constructed of 4-Ply reinforced silicone for improved durability over the failure-prone OE rubber hose. Flourosilicone lined internal layer for exceptional chemical resistance. Silicone offers reduced thermal conductivity as well as improved resistance to ozone and UV degradation for improved performance and durability. Follows OEM form for perfect fitment. Utilizes OEM O-ring 11537545278 to ensure a proper seal. Replaces Genuine BMW Part Number: 11537545890
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Packaged by Turner - Corporate Logo
T#:554075
Part#: 11537601158KT2
In Stock
Sale - Save 24% $ 106.99

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

$ 81.44 USD
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If your vehicle is experiencing cooling issues, chances are the thermostat is the cause. Common symptoms include prolonged warm-up at highway speeds from the thermostat being stuck open, or consistent overheating issues from the thermostat being stuck in the closed position. Either condition can result in poor performance, and potential damage to vital components in your vehicle.

Kit includes

  • Wahler Thermostat
  • 1 liter of Coolant

This item fits the following BMWs: 
2008-2013  E82 BMW  135i 135is 1M Coupe 
2013+  E84 BMW  X1 xDrive35i 
2011  E90 BMW  335i 335xi 335i xDrive - Sedan 
2011-2013  E92 BMW  335i 335xi 335i xDrive - Coupe 
2011-2013  E93 BMW  335i Convertible 
2011-2013  E70 BMW  X5 xDrive35i 
2011-2013  E71 BMW  X6 xDrive35i

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Pierburg - Corporate Logo
T#:341216
Part#: 11517586925KT1
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$ 373.99 USD
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Ensure your BMW's optimal performance by replacing a failing water pump with this high-quality replacement. Detectable by symptoms like coolant leaks or whining noises from under the hood, a failing water pump can lead to overheating issues. Don't risk engine damage; keep an eye out for warning signs and promptly replace the water pump. This replacement kit includes one-time-use aluminum mounting bolts for a secure installation.

Product Benefits:

  • Prevents coolant leaks
  • Eliminates whining noises from the engine
  • Avoids overheating issues
  • Includes one-time-use aluminum mounting bolts for secure installation
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Rein - Corporate Logo
T#:592013
Part#: 17127599450
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$ 58.99 USD
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Connects your radiator to the thermostat

Ina - Corporate Logo
T#:40004835
Part#: 11515A05704
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$ 445.99 USD
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Water pumps are a critical component of your cooling system. A failed water pump will stop the flow of coolant in your vehicle, leading to overheating and eventual engine damage. Replace your faulty or aging water pump with a high-quality OEM unit from Schaeffler. Replacement for BMW part # 11519455978, 11517632426, and 11517563659.
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Rein - Corporate Logo
T#:592020
Part#: 17137640515
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$ 97.99 USD
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Includes level sensor
Vargas Turbo Technologies - Corporate Logo
T#:7530034
Part#: COOLANTCAPRED
Ships in 1 Business Day
$ 79.99 USD
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VTT is proud to offer their billet replacement for the factory plastic Coolant Reservoir cap. This cap does away with the weak plastic cap while adding some pop, and color to your engine bay. This coolant cap retains ALL of the factory provisions by simply allowing you to snap the factory pressure-relief into the new Billet Cap. VTT also designed these caps to complement their N5X Billet Oil caps, N5XBillet Oil filter housing caps, and Billet Power Steering cap, so all 4 will have the same design. These caps are offered in 4 colors – Red, Black, Blue, and Clear anodized Replaces Genuine BMW Reservoir Cap # 17117639020 Note: Fitment includes 99% of all BMW with a coolant Reservoir tank from the E series forward, meaning then fit even the brand New G8X M3/4 with the S58, all B58, etc. If your BMW is an E90 or newer this cap most likely will fit
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URO - Corporate Logo
T#:1196209
Part#: 17111711987
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Fits various components in the cooling system


URO - Corporate Logo
T#:37959694
Part#: 17107523260
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$ 56.99 USD
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Constructed from high-strength, heat-resistant plastic, this component is designed to endure extreme temperatures and fluctuating pressure levels, ensuring the cooling system functions optimally and maintains peak efficiency.
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URO - Corporate Logo
T#:591812
Part#: 11537549476
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$ 74.99 USD
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Restore proper function to your cooling system
Vargas Turbo Technologies - Corporate Logo
T#:590227
Part#: VTT-N54-COOLANT-
Ships in 10 Business Days
$ 469.99 USD
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A complete upgrade to the weak factory hoses.

URO - Corporate Logo
T#:7624638
Part#: 17117521781
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Commonly broken when opened to drain the radiator.

Wahler - Corporate Logo
T#:360363
Part#: 11537549476
In Stock
Sale - Save 7% $ 97.91

This product was last offered at the strikethrough price on
03-25-2026

$ 91.43 USD
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This product was last offered at the strikethrough price on
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If your vehicle is experiencing cooling issues, chances are the thermostat is the cause. Common symptoms include a prolonged warm-up at highway speeds from the thermostat being stuck open, or consistent overheating issues from the thermostat being stuck in the closed position. Either condition can result in poor performance and potential damage to vital components in your vehicle.
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Packaged by Turner - Corporate Logo
T#:15710799
Part#: 11517632426-KT
Ships in 3 Business Days
Sale - Save 20% $ 514.99

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

$ 410.34 USD
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$ 514.99

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The stock thermostat is designed to open at 97C. This leaves your engine running fairly hot, and running for quite awhile before your thermostat will begin operation. With the Mishimoto Racing thermostat, the activation temperature becomes 74C. That's 23C cooler, meaning you can rest easy knowing your engine will stay cooler to help avoid all the problems that can be associated with an engine running hot. The water pumps in these BMW models are known for failure near 80,000 miles is a very common issue often times leaving the owner stranded. This kit provides a single stop for water pump and thermostat replacement needs to save the search and get you back on the road. Mishimoto Racing thermostat Bavarian Autosport water pump Genuine BMW coolant Mounting hardware required for both the thermostat and water pump
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Precision Raceworks - Corporate Logo
T#:1332002
Part#: 201-0050
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$ 19.99 USD
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The E9X/ E8X coolant tank level sensor extension harness is the same great product that comes standard with Precision Raceworks' E9X/ E8X relocated inlet kits. The coolant tank level sensor extension harness is perfect for those running a relocated coolant reservoir tank or 335D coolant reservoir. This harness plugs right into the factory connector allowing you to extend the position of the sensor without the need to splice any wires.
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Rein - Corporate Logo
T#:583051
Part#: 17127531581
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$ 27.99 USD
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Radiator to Thermostat Housing

Mishimoto - Corporate Logo
T#:8933504
Part#: MMOCULBK
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$ 536.99 USD
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Ensure your BMW's engine performs at its peak with the installation of this highly efficient oil cooler from Mishimoto. Even in ideal driving conditions, elevated oil temperatures can lead to decreased pressure and compromised engine lubrication. This comprehensive kit includes four feet of stainless braided line, adapter fittings, and an oil filter sandwich adapter, all meticulously designed to reduce oil temperatures and uphold optimal driving circumstances.

  • Rows: 19
  • Overall Dimensions: 13" x 5.5" x 2"
  • Core Dimensions: 11.25" x 5.5" x 2"
  • Braided Hoses: 4ft .75 inch & 4ft 9 inch
  • Braided Hose Fittings: -10AN
  • Sandwich Plate Fittings: -10AN

Please take into consideration that this product may be subject to Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968). Proposition 65 is a California law that applies to companies selling products in California and necessitates the disclosure of chemicals known to cause cancer, birth defects, or other reproductive harm when present at levels exceeding specified thresholds. For further information regarding California Prop 65 warnings, visit www.P65Warnings.ca.gov.

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Wahler - Corporate Logo
T#:14602
Part#: 11537601158
In Stock
$ 121.98

This product was last offered at the strikethrough price on
07-27-2026

$ 109.52 USD
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Engine running a little hot or is the temp gauge not telling you anything? The thermostat might be the likely problem. Many cooling issues start with the thermostat. This is electronically controlled by the engine computer based on the cooling demands from the engine. And cooling components are working harder than ever. Engine performance is also dependent on temperature - as temperatures rise and pass a certain threshold the engine computer will begin reducing power. Stay on top of your cooling maintenance by replacing critical components preventatively. This replacement thermostat fits many of the N55 6 cylinder engines and is an Wahler part. The thermostat is located along with the water pump on the side of the engine. To gain access for removal you may need to remove the water pump as well. If the water pump is removed you MUST replace its mounting bolts. You can add them from the options below. We also have a bundled package that includes the water pump, mounting screws, connecting hose, and clamps if you want to replace everything together (recommended).

Manufacturing OE-grade replacement cooling parts is Wahler’s specialty. When you need to replace a component in your vehicle’s water system, high grade, and long-lasting parts from Wahler ensure the job is done properly the first time.

This item fits the following BMWs:
2008-2013 E82 BMW 135i 135is 1M Coupe
2013+ E84 BMW X1 xDrive35i
2011 E90 BMW 335i 335xi 335i xDrive - Sedan
2011-2013 E92 BMW 335i 335xi 335i xDrive - Coupe
2011-2013 E93 BMW 335i Convertible
2011-2013 E70 BMW X5 xDrive35i
2011-2013 E71 BMW X6 xDrive35i
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URO - Corporate Logo
T#:373591
Part#: 17117521071
Ships in 1-3 days
$ 18.99

This product was last offered at the strikethrough price on
03-09-2026

$ 14.49 USD
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Keep that coolant expansion tank sealed
Genuine BMW - Corporate Logo
T#:15138
Part#: 17127564480
Ships in 1-2 days
10% off MSRP $ 92.99

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$ 84.99 USD
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$ 92.99

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$ 84.99 USD
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Replace your cracked or leaking lower radiator hose with this BMW part. The lower radiator hose goes to the lower right side of the radiator. This hose has the quick connect locking ends so that hose clamps are not required.

This item fits the following BMWs:
2008-2010 E82 BMW 135i 135is 1M Coupe
2006-2010 E90 BMW 335i 335xi 335i xDrive - Sedan
2007-2010 E92 BMW 335i 335is 335xi 335i xDrive - Coupe
2010-2013 E92 BMW 335is - Coupe
2007-2010 E93 BMW 335i Convertible
2010-2013 E93 BMW 335is Convertible
2009-2010 Z4 BMW Z4 sDrive35i
2009+ Z4 BMW Z4 sDrive35is
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Genuine BMW - Corporate Logo
T#:45906
Part#: 17117529497
In Stock
4% off MSRP $ 27.99

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$ 26.99 USD
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4% off MSRP
$ 27.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 26.99 USD
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This is the radiator drain plug (petcock valve) for manual transmission E82 and E9X models. The plug actually has two drains built in - the traditional blue petcock valve which is part of the hex head. If you drain the coolant from your radiator through this plug you could be in for a nasty surprise. The hex plug has tabs that lock it into position in the factory BMW radiator. Once it's installed the tabs lock in place. But if you remove the hex completely, the tabs snap off and the plug will no longer seal correctly! Do not drain your coolant without having one of these on hand as a spare! It's cheap insurance against a definite leak later on.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

Fits manual transmission only.

Note: the Behr OEM radiator that we sell does not use this same drain plug. It has it's own drain plug that does not use the tabs. You won't need the factory BMW drain plug ever again.

Also known as a Genuine BMW Control Sleeve
This item fits the following BMW Chassis:
2008-2013 E82 BMW 135i 135is 1M Coupe
2013+ E84 BMW X1 sDrive28i X1 xDrive28i X1 xDrive35i
2009+ E89 BMW Z4 sDrive28i Z4 sDrive35i Z4 sDrive35is
2006-2011 E90 BMW 335i 335xi 335i xDrive - Sedan
2007-2013 E92 BMW 335i 335is 335xi 335i xDrive - Coupe
2007-2013 E93 BMW 335i 335is- Convertible
Fits BMW Engines including:
N20,N54,N54T,N55
 

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Genuine BMW - Corporate Logo
T#:36009
Part#: 11537545302
In Stock
Sale - Save 18% $ 18.18

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$ 14.90 USD
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$ 18.18

This product was last offered at the strikethrough price on
05-02-2026

$ 14.90 USD
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Genuine BMW Gasket
This item fits the following BMW Chassis:
E82 1M Coupe,E71 X6,E82,E89 Z4,E90,E92,E93,F01,F02

Fits BMW Engines including:
N51,N54,N54T

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Mishimoto - Corporate Logo
T#:31291020
Part#: MMOC10BK
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$ 126.99 USD
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Universal Oil Cooler Black - 10 Row is engineered to maintain optimal oil temperatures and ensure peak engine performance under various driving conditions. This high-performance oil cooler effectively reduces oil temperatures, preventing a drop in pressure and maintaining proper engine lubrication. Featuring a robust 10-row design, it offers superior cooling efficiency compared to standard coolers.

  • Efficient Cooling: The 10-row design enhances cooling capacity to manage high oil temperatures effectively.
  • Durable Construction: Black finish provides durability and resistance to environmental factors.
  • Optimized Performance: Helps prevent a drop in oil pressure and maintains proper engine lubrication.
  • Versatile Fitment: Universal design suitable for various vehicles and applications.
  • Compact Size: Overall dimensions of 12.95" x 3.8" x 1.97" and core dimensions of 11" x 2.76" x 1.97" ensure a good fit in most engine bays.

WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to all companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.

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Genuine BMW - Corporate Logo
T#:46240
Part#: 17127548229
In Stock
2% off MSRP $ 153.99

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$ 150.99 USD
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2% off MSRP
$ 153.99

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$ 150.99 USD
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Genuine BMW Line, Heater Return - Thermostat
This item fits the following BMW Chassis:
E82 1M Coupe,E82,E90,E92,E93

Fits BMW Engines including:
N54,N54T

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Genuine BMW - Corporate Logo
T#:19523
Part#: 17117537292
In Stock
2% off MSRP $ 889.99

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$ 871.99 USD
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$ 889.99

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When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.


Genuine BMW Radiator -
This item fits the following BMW Chassis:
E82,E90,E92,E93

Fits BMW Engines including:
N51
 

 

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Mishimoto - Corporate Logo
T#:637390
Part#: MMFAN-16C
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$ 117.99 USD
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This curved blade fan can be used as an upgrade to the OEM fan for more efficient cooling or fitment issues with aftermarket products. With its slim design, the fan can easily be installed flush against a radiator. For universal installation, use Mishimoto universal fan mount kit, T#363171. Features: High-flow curved blade fan provides 1850 cfm of airflow Universal fitment Compact design with a diameter of 16" and an overall thickness of only 3.2" provides increased engine bay space Mishimoto Lifetime Warranty WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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Mishimoto - Corporate Logo
T#:29002063
Part#: MMOC10
In Stock
$ 126.99 USD
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$ 126.99 USD
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BMW & MINI Universal Oil Cooler - 10 Row is a versatile cooling solution designed to enhance the performance and reliability of BMW and MINI vehicles. This high-quality oil cooler provides efficient cooling for the engine oil, ensuring optimal operating temperatures and extending the life of vital engine components.

Crafted with precision engineering and durable materials, the BMW & MINI Universal Oil Cooler - 10 Row is compatible with a wide range of BMW and MINI models, offering versatility and ease of installation. It effectively dissipates heat from the engine oil, reducing the risk of overheating and engine damage.

  • Enhances performance and reliability of BMW and MINI vehicles
  • Efficient cooling for engine oil, ensuring optimal operating temperatures
  • Extends the life of vital engine components
  • Compatible with a wide range of BMW and MINI models
  • Versatile and easy to install
  • Crafted with precision engineering and durable materials

Investing in the BMW & MINI Universal Oil Cooler - 10 Row is a smart choice for BMW and MINI owners looking to improve their vehicle's performance and longevity.

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Rein - Corporate Logo
T#:340665
Part#: 17127564480
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$ 50.99 USD
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$ 50.99 USD
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The hose that attaches to the bottom of the radiator

Rein - Corporate Logo
T#:592007
Part#: 17127548203
Ships in 4 Business Days
$ 26.99 USD
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$ 26.99 USD
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Low temperature cooling module hose.

Genuine BMW - Corporate Logo
T#:45592
Part#: 17107524912
In Stock
7% off MSRP $ 73.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 68.99 USD
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7% off MSRP
$ 73.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 68.99 USD
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Genuine BMW Module Carrier
This item fits the following BMW Chassis:
E82 1M Coupe,E82,E89 Z4,E90,E92,E93

Febi - Corporate Logo
T#:340723
Part#: 17137607482
In Stock
$ 151.99

This product was last offered at the strikethrough price on
04-16-2026

$ 104.99 USD
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$ 104.99 USD
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Includes level sensor
Genuine BMW - Corporate Logo
T#:46369
Part#: 17127599452
In Stock
9% off MSRP $ 89.68

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 81.86 USD
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9% off MSRP
$ 89.68

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 81.86 USD
Only available at this price
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Genuine BMW Vent Line For Radiator, Top -
This item fits the following BMW Chassis:
E82,E90,E92,E93

Fits BMW Engines including:
N55



Redline - Corporate Logo
T#:640436
Part#: 81215
Ships on Oct 22, 2026
$ 54.99 USD
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$ 54.99 USD
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Red Line SuperCool Performance Coolant fortified with WaterWetter is a 50/50 prediluted antifreeze/coolant designed to maximize the performance of your cooling system with superior protection against cavitation corrosion/erosion. Using 100% SuperCool Performance protects the entire cooling system, keeping new components like new for 5 years/150,000 miles and prevents further damage to older components. Red Line’s proprietary coolant additive formula enhances the fluid’s ability to transfer heat, reducing operating temperatures by up to 20*F and prolonging the life of the entire cooling system. Red Line's SuperCool is an OAT coolant that is a Nitrate and Silicate Free product with its own proprietary corrosion technology to offer superior protection for aluminum engines found in all European vehicles, performance vehicles, as well as other applications. SuperCool will not void the factory warranty either. It can be used to top off the existing coolant of any BMW and will not cause any ill-effects on the cooling system because it is silicate and nitrate free. It is still better to flush it out and switch completely to SuperCool to get all the full benefits of the product in performance and protection.
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Genuine BMW - Corporate Logo
T#:45593
Part#: 17107524914
Ships in 1-2 days
7% off MSRP $ 73.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 68.99 USD
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7% off MSRP
$ 73.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 68.99 USD
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Genuine BMW Module Carrier

This item fits the following BMW Chassis:
E82 1M Coupe,E82,E89 Z4,E90,E92,E93

Fits BMW Engines including:
M57,N20,N51,N52,N52N,N54,N54T,N55,S65

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Mishimoto - Corporate Logo
T#:363461
Part#: MMTS-E90-07
Ships in 3 Business Days
$ 83.99 USD
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$ 83.99 USD
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The thermostat regulates the temperature of your coolant. At a predetermined temperature the thermostat will open to let coolant flow to the radiator and be cooled by airflow or the fan. Over time the thermostat will become stuck open or closed, leading to a variety of issues. A closed thermostat will never allow the coolant to reach the radiator and be cooled. Hot coolant will continue to circulate through the engine and absorb even more heat until boiling and the system overheats. An open thermostat is not as bad but is still not ideal - the coolant is always cool, with the temp needle always reading in the cool range. This tells the ECU to richen the fuel mixture to bring the car up to normal operating temp. So your fuel mileage decreases and the car runs rich.   

Replacing the thermostat is an easy but messy job. This thermostat includes the main o-ring (but a housing gasket may be required). Consider replacing the housing and any associated temp sensors while you're in there. The cooling system will need to be bled after.  

For vehicles with plastic thermostat housing 

  

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Genuine BMW - Corporate Logo
T#:15137
Part#: 17127564478
Ships in 1-2 days
6% off MSRP $ 99.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 93.99 USD
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6% off MSRP
$ 99.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 93.99 USD
Only available at this price
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Genuine BMW Hose From Radiator Bottom - Thermostat -
This item fits the following BMW Chassis:
E82,E89 Z4,E90,E92,E93

Fits BMW Engines including:
N52N

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URO - Corporate Logo
T#:37892133
Part#: 11517514942
Back Ordered
$ 2.09 USD
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$ 2.09 USD
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URO Coolant Pipe O-Ring - BMW N52 3.0L

Engineered to meet OE coolant pipe o-ring dimensions, the URO Coolant Pipe O-Ring ensures easy installation and a perfect fit for BMW N52 3.0L engines. It is designed to resist cooling system heat and antifreeze, providing reliable performance under demanding conditions. Constructed from durable ECD (Electro Chemical Degradation)-resistant EPDM material, it helps prevent electrolysis, extending the lifespan of your cooling system. With a temperature rating of -40º F to 275º F (-40º C to 135º C), this o-ring is built to withstand extreme temperatures. Supported by a 24-month unlimited mileage warranty, it is a dependable solution for maintaining your BMW’s cooling system efficiency.

Key Benefits:

  • Precision-molded to OE dimensions for easy installation and perfect fit.
  • Resists cooling system heat and antifreeze for reliable performance.
  • Durable ECD-resistant EPDM material prevents electrolysis.
  • Temperature rating of -40º F to 275º F for extreme condition durability.
  • Includes a 24-month unlimited mileage warranty for peace of mind.
  • Specifically designed for BMW N52 3.0L engines.
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Wahler - Corporate Logo
T#:374361
Part#: N524TSTKT1
In Stock
$ 112.99

This product was last offered at the strikethrough price on
03-26-2026

$ 111.99 USD
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$ 111.99 USD
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Genuine BMW - Corporate Logo
T#:46241
Part#: 17127548230
In Stock
$ 173.21 USD
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$ 173.21 USD
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Genuine BMW Line, Heater Return - Thermostat
This item fits the following BMW Chassis:
E82 1M Coupe,E82,E90,E92,E93

Fits BMW Engines including:
N54,N54T

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Genuine BMW - Corporate Logo
T#:640494
Part#: 11515A05704
In Stock
21% off MSRP $ 852.95

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 675.00 USD
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21% off MSRP
$ 852.95

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 675.00 USD
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N45 and N55 Water Pumps are prone to failure. Replace with a genuine part from BMW.

BMW E82 E9X Radiator Return Hose - 64216951946
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:640560
Part#: 64216951946
In Stock at Vendor
$ 42.99

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

$ 41.99 USD
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$ 41.99 USD
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BMW E82 E9X Radiator Return Hose is an essential replacement part for maintaining optimal cooling system performance in BMW E82 and E9X models. Designed to fit seamlessly into your vehicle’s cooling system, this radiator return hose ensures efficient coolant flow, helping to prevent overheating and potential engine damage.

  • Perfect Fit: Specifically designed for BMW E82 and E9X models, ensuring compatibility and reliable performance.
  • High-Quality Construction: Made from durable materials to withstand high temperatures and pressure.
  • Efficient Cooling: Maintains proper coolant flow to help prevent engine overheating.
  • Easy Installation: Direct replacement for the original hose, making installation straightforward.
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Victor Reinz - Corporate Logo
T#:388664
Part#: 11517514942
In Stock
$ 4.99 USD
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$ 4.99 USD
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Is your water pump hose leaking where the hose connects to the engine? Most likely this seal has failed and needs to be replaced.
Rein - Corporate Logo
T#:388662
Part#: 11537516414
In Stock
$ 19.99 USD
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$ 19.99 USD
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Cooling hoses tend to crack over time after going through countless heating and cooling cycles. This can lead to leaks or air bubbles in the cooling system that lead too coolant loos, hurts cooling potential, or could possibly cause damage from excess heat.

Fits the following BMWs:
Submodels with N52 3.0L engine.

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URO Premium - Corporate Logo
T#:554118
Part#: 11537516414
In Stock
$ 14.99 USD
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$ 14.99 USD
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Subject to the ravages of heat cycling during each driving cycle - rubber hoses are more susceptible to wear and fatigue than aluminum piping. BMW utilized a single part number for their aluminum pipe and hose combination - making this part typically over $100 to replace. Rein to the rescue! By supplying just the rubber component, repairs can be made quickly and cost effectively (and without the waste of scraping a perfectly good aluminum pipe!) Includes both hose clamps and rubber hose.
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URO - Corporate Logo
T#:384250
Part#: 17137640514
Ships in 1 Business Day
$ 60.74 USD
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$ 60.74 USD
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The coolant expansion tank in your vehicle gives additional fluid a place to go after expansion and contraction from temperature change. Because it is subjected to such drastic changes on a regular basis, it can often crack or break. You want to keep all the coolant in your vehicle in the cooling system. If your tank has experienced damage such as cracking, nipples breaking off, or mounting point damage, you will need to replace it.
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Genuine BMW - Corporate Logo
T#:15125
Part#: 17127531581
In Stock
6% off MSRP $ 99.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 93.99 USD
Only available at this price
Free Shipping
6% off MSRP
$ 99.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 93.99 USD
Only available at this price
Free Shipping
This is the lower radiator hose that goes from the engine to the bottom of the radiator with either N51 or N52 enigne. Not for cars with Sport Automatic Transmissions

This item fits the following BMWs:
2008+ E82 BMW 128i
2006-2011 E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi - Sedan
2006-2012 E91 BMW 325xi 328i 328xi 328i xDrive - Wagon
2007-2013 E92 BMW 328i 328xi 328i xDrive - Coupe
2007-2013 E93 BMW 328i Convertible
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