BMW Cooling System Parts & Accessories for BMW G82 M4 S58 3.0L

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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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VTT Billet Coolant Reservoir Cap - Anodized Clear - Most BMWs 2006+ (...
This coolant cap retains ALL of the factory provisions by simply allowing you to snap t...
Vargas Turbo Technologies - Corporate Logo
T#:7530035
Part#: COOLANTCAPRAW
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$ 78.99 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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Vargas Turbo Technologies - Corporate Logo
T#:26971821
Part#: VTT-S58-TB-COOLA
Ships in 10 Business Days
$ 114.99 USD
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Heat is the enemy of power, and the last thing you want is hot coolant heating your charge air even further right before it enters the charge cooler, but this is what BMW has done on the S58. This is done for emissions and quick warm-up purposes. However, If you are looking to make power on the S58, and are upgrading your charge cooler, or adding PI. While you are there, it takes 30 seconds to remove the coolant lines from the TB connections and replace them with our billet coolant delete kit. This completely removes the coolant from the Throttle body and provides a bypass for the coolant. Simply remove the two lines going to the throttle body, and run our hose in their place. You leave the coolant fittings on the TB open and avoid any unwanted heat being introduced into your charge tract. In our opinion a must for full effort builds. We take the work out of it for you. Kit included: One Plug and Play TB Coolant Delete Hose Kit Features: Billet 6061 Anodized coolant fittings for long leak-free life Reinforced 7-ply silicone hose for strength and longevity Vibration-resistant crimp clamps 100% plug and play, NO cutting or removing factory clamps or hoses. Fully reversible
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Spal - Corporate Logo
T#:25507142
Part#: SPL185TS
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$ 44.99 USD
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This part replaces faulty thermo-switches found in Spal electric fan conversion kits.

Spal - Corporate Logo
T#:598861
Part#: 30100385
In Stock at Vendor
15% off MSRP $ 130.99

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$ 111.99 USD
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$ 130.99

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

$ 111.99 USD
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1038 CFM. High performance puller fan with curved blades. This is a universal fan for applications that require more air flow or for engine compartments that have tight tolerances such as an aftermarket turbo set up that needs more clearance. This fan is universal and you must make it fit your application. It is not a direct bolt on. Made in Italy. Size: 15.2in x 14.5in x 2.2in Airflow (CFM): 1038
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Spal - Corporate Logo
T#:583649
Part#: 30102048
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$ 207.99 USD
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Universal fan that allows increased cooling capacity and shroudless design. 1959 CFM.
Spal - Corporate Logo
T#:598825
Part#: 30130074
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$ 17.99 USD
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Provides .25" stand off from radiator, does not work with high output fans.

Mishimoto - Corporate Logo
T#:15544955
Part#: MMOC-G80-21SL
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$ 776.99 USD
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Keep your 2021+ BMW M3/M4 cool and collected with the Mishimoto 2021+ BMW M3/M4 performance oil cooler. Much like their predecessors, the G8X M3 and M4 were designed with efficiency in mind. This can be a double-edged sword, as the optimally arranged engine bay has components placed in precarious positions. Most notably, the oil cooler is placed on the undercarriage, parallel to the road's surface. This placement increases air flow and uses aerodynamics to pull air through the core, but it also makes the stock cooler vulnerable to scrapes, bumps, and other road hazards. With this in mind, the engineers at Mishimoto set out to design a robust G8X oil cooler to keep your M3 or M4 running cool on and off the track. We started by swapping the stock tube-and-fin cooler for a bar-and-plate with CNC-machined end tanks. Our cooler boasts a 35.7-percent thicker core and a 41-percent increase in core volume for superior cooling efficiency. Our cooler fits directly in place of the stock unit and retains the stock seals and bash guards for optimal airflow and additional protection. The Mishimoto performance oil cooler for the 2021+ BMW G8X M3/M4 includes everything needed for installation and, as with all Mishimoto products, it's protected by the Mishimoto Lifetime Warranty for a lifetime of protection and cooling. Product Features: Direct fit for the 2021+ BMW G8X M3/M4 Full aluminum TIG-welded construction 41-percent increase in core volume and 35.7-percent thicker core than stock for improved cooling efficiency Robust bar-and-plate core provides superior pressure tolerance and durability Retains stock seals for optimal air flow from fresh air ducts Retains bash guards to protect cooler from bumps and curbs Silver powder coated finish for maximum corrosion resistance No cutting or modifications required Includes everything needed for installation Mishimoto Lifetime Warranty
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Spal - Corporate Logo
T#:598818
Part#: 30102113
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$ 257.99 USD
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2467 CFM. High performance puller fan with curved blades. This is a universal fan for applications that require more air flow or for engine compartments that have tight tolerances such as an aftermarket turbo set up that needs more clearance. This fan is universal and you must make it fit your application. It is not a direct bolt on. Made in Italy. Size: 16.25in x 15.75in x 3.5in Airflow (CFM): 2467
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AUTOTECKNIC - Corporate Logo
T#:39497957
Part#: BM-0701-M
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$ 549.99 USD
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Turner Motorsport offers this premium AutoTecknic Dry Carbon Fiber Cooling Shroud, ensuring BMW enthusiasts get a top-quality upgrade for their vehicle. Whether for daily driving or intense track days, this cooling shroud is engineered to deliver maximum efficiency and an unmistakable carbon fiber style.
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Mishimoto - Corporate Logo
T#:1256484
Part#: MMOCULTBK
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$ 599.99 USD
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Introducing Mishimoto's Universal Oil Cooler (19 row with Thermostat)

In pursuit of optimal engine lubrication, even under ideal driving conditions, is paramount for BMW owners. Elevated oil temperatures can compromise oil pressure and hinder efficient lubrication. Turner Motorsport's new oil cooler offers a solution to maintain cool oil temperatures, ensuring your engine functions at its best. This comprehensive kit includes four feet of stainless braided line, adapter fittings, and an oil filter sandwich adapter.

Key Features:

  • Effective Heat Dissipation: The oil cooler efficiently dissipates heat, keeping oil temperatures within the optimal range for peak engine performance.
  • Comprehensive Kit: This kit includes four feet of stainless braided line, adapter fittings, and an oil filter sandwich adapter, providing everything you need for a seamless installation.
  • Precise Temperature Control: Equipped with a thermostat for fine temperature and flow control, ensuring the ideal oil temperature is maintained.
  • Proposition 65 Compliant: This product complies with Proposition 65, a California law that ensures product safety.

Elevate your BMW's engine performance and protect it from the effects of elevated oil temperatures. Turner Motorsport has the solution you need.

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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Mishimoto - Corporate Logo
T#:378412
Part#: MMFAN12BL
Ships in 3 Business Days
$ 106.99 USD
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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#:378443
Part#: MMFAN12
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$ 93.99 USD
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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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AUTOTECKNIC - Corporate Logo
T#:39497984
Part#: BM-0803-GC
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$ 74.99 USD
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$ 74.99 USD
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Turner Motorsport offers the AutoTecknic Dry Carbon Coolant Expansion Tank Cap Cover - Gloss Carbon as the perfect addition for BMW owners looking to elevate their engine bay’s appearance with premium materials and precision engineering.
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AUTOTECKNIC - Corporate Logo
T#:21045537
Part#: ATK-BM-0701-G87
Ships in 7 Business Days
$ 550.00 USD
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$ 550.00 USD
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AutoTecknic's Dry Carbon Cooling Plate provides the G87 with better air induction while providing the intake and engine with cooler air during high-speed driving. It also gives your engine bay a fresh appearance. This shroud is made from high quality dry carbon fiber and is sure to stand the test of time!
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Mishimoto - Corporate Logo
T#:17538760
Part#: MMRAD-G80-21A
Ships in 3 Business Days
$ 587.99 USD
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$ 587.99 USD
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Spal - Corporate Logo
T#:2181323
Part#: FRH
Ships in 2 Business Days
12% off MSRP $ 112.99

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$ 99.99 USD
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12% off MSRP
$ 112.99

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SPAL® electric fan relay wiring kits are designed to automatically turn on your SPAL® electric fan when the air conditioning is turned on. They can also be used when dual electric fans are installed using one switching device. Features: Makes installation of your new fan a breeze Designed to safely integrate with OEM wiring Feature a waterproof 10/40 amp relay with printed wires for easy installation Harness is designed for 12V systems only Does not included thermo-switch
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CSF Universal Large Single-Pass Oil Cooler - Universal Application ...
Universal fitment design - modifications may be necessary to run this cooler
CSF - Corporate Logo
T#:53608839
Part#: 8371
Ships in 3 Business Days
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$ 499.00 USD
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CSF redesigned this cooler and went with a more traditional inlet/outlet orientation. The new single pass design features high efficiency and high durability, but with vertically oriented inlet and outlet connections.
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Mishimoto - Corporate Logo
T#:21209833
Part#: MMHE-G80-21MT
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$ 810.99 USD
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Introducing the Mishimoto 2021+ BMW G8X M3/M4 performance heat exchanger, the ultimate solution to keep your charge air cool under the most demanding conditions. In the world of forced induction vehicles, air-to-water intercooling is the future, and Mishimoto are taking it to the next level. We started from scratch, leaving no room for compromise. Our design eliminates all plastic components, replacing them with durable aluminum end tanks, core, and CNC-machined ports. TIG-welded for maximum strength and longevity, this heat exchanger will withstand even the harshest conditions. We took it further by incorporating strutted tubes within the core, adding unparalleled resistance against bowing and flexing during aggressive cornering. But strength is not our only focus. We've increased the core volume by 23 percent and expanded the external fin surface area by 44 percent. Combined with our dual-pass flow configuration and louvered fin design, this performance heat exchanger vastly improves cooling capacity over stock, enhancing overall performance. Rest assured, the Mishimoto Performance Heat Exchanger for the 2021+ BMW G8X M3/M4 is designed to fit perfectly with all other factory components, ensuring seamless integration into your vehicle. For added protection, we include steel rock guards to shield the heat exchanger from debris and prevent punctured tubes or crushed fins. The Mishimoto G8X M3/M4 performance heat exchanger fits both automatic and manual transmissions. The Mishimoto 2021+ BMW G8X M3/M4 performance heat exchanger comes with our renowned Mishimoto Lifetime Warranty, giving you peace of mind and confidence in your investment. Upgrade your BMW G8X M3/M4 with the Mishimoto Heat Exchanger and experience the true power of cooling efficiency. Features: Direct fit for the 2021+ BMW G8X M3/M4 23 percent increase in core volume improves cooling capacity 44 percent increase in external fin surface area for greater heat transfer Dual-pass design for maximum cooling Strutted tubes incorporated in core for maximum durability CNC-machined inlet and outlet for leak-free running Includes removable steel rock guards for additional durability Mishimoto Lifetime Warranty Includes: (1) Performance Aluminum Heat Exchanger (1) Upper Rock Guard (1) Lower Rock Guard (MT Only) (1) Hardware Pack Mishimoto Lifetime Warranty
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CTS - Corporate Logo
T#:50899217
Part#: HX-0018
Ships in 7 Business Days
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$ 424.99 USD
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This performance heat exchanger from CTS features a number of upgrades over the stock intercooler, offering better reliability and cooling performance. The first major upgrade is the heat exchanger's full alumnimum constructions. The factory heat exchange is partially constructed from plastic, which is prone to damage and cracks as the plastic becomes brittle over time. Full aluminum construction results in a stronger intercooler, which will last the lifetime of your BMW. The second major upgrade is a redesign of the coolant flow path and fin layout. This redesign allows for higher cooling efficiency, resulting in greater heat dissipation and reduced coolant temperatures.
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Spal - Corporate Logo
T#:598797
Part#: 30102029
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$ 207.99 USD
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1328 CFM. High performance puller fan with curved blades. This is a universal fan for applications that require more air flow or for engine compartments that have tight tolerances such as an aftermarket turbo set up that needs more clearance. This fan is universal and you must make it fit your application. It is not a direct bolt on. Made in Italy. Size: 13.25in x 12.5in x 3.5n Airflow (CFM): 1328
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URO - Corporate Logo
T#:36947227
Part#: 17138093924
Ships in 1 Business Day
$ 116.99 USD
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The coolant expansion tank in your vehicle provides a reservoir for excess fluid as it expands and contracts due to temperature changes. However, frequent exposure to these extreme fluctuations can cause the tank to crack or break over time. To maintain proper coolant levels within the cooling system, any damage to the tank—such as cracks, broken fittings, or damaged mounting points—requires immediate replacement.
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Mishimoto - Corporate Logo
T#:378434
Part#: MMFAN10
Ships in 3 Business Days
$ 88.99 USD
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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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Vargas Turbo Technologies - Corporate Logo
T#:52094567
Part#: VTTFAB040BLKS58
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The Vargas Turbo Technologies S58 Block-Off (VTT-FAB-040) removes the guesswork from sealing the engine block during turbocharger upgrades.
Wagner Tuning - Corporate Logo
T#:22558939
Part#: 400001021
Ships in 1 Business Day
$ 1,390.00 USD
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$ 1,390.00 USD
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The 3.0L I6 bi-turbo engine of BMW M3/M4 models is equipped with an indirect charge-air cooling circuit. So the cooling of the charged air is not realized by the ambient air as cooling medium (as usual), but made with its own cooling water circuit. A reduction of the temperature of the cooling water is directly equated with an improved cooling performance of the charged air. This is exactly where the advantages of the WAGNERTUNING upgrade water cooler comes into play. The new developed competition racing core of the WAGNERTUNING high-performance water coolers increases the radiator volume of the OEM water coolers by a total of 60 %. The calculated ratio between the inner and outer cooling surface generates a maximum heat transfer and allows at the same time enough air flow for the surrounding components (for example the engine water cooler) for its own heat exchange. The water coolers are equipped with a heat-conductive anti-corrosion coating to ensure a lasting cooling effect. The plug & play installation of the system is simple and easy to perform (an installation instruction is included as well). Dimensions OEM radiator: 505 mm x 605 mm x 30 mm V = 9.16 Liter A = 3055 cm² Wagner Dimensions 505 mm x 605 mm x 48 mm V = 14.67 Liter A = 3055 cm²
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Vargas Turbo Technologies - Corporate Logo
T#:52094570
Part#: VTT-FAB-041-P
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The VTT-FAB-041-P is a precision-engineered solution for enthusiasts and builders fabricating custom turbo kits for S58 engines.
Vargas Turbo Technologies - Corporate Logo
T#:52164906
Part#: S58CLPRESCK
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$ 139.99 USD
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Protect your investment with the Vargas Turbo Technologies S58 Coolant Pressure Sensor Kit.
Vargas Turbo Technologies - Corporate Logo
T#:52164901
Part#: S58CLPRESAD
Ships in 10 Business Days
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Protect your high-horsepower S58 build with the VTT S58 Coolant Pressure Sensor Adaptor.

Vargas Turbo Technologies - Corporate Logo
T#:52657001
Part#: G8XCFHKBLK
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Elevate the visual appeal and long-term durability of your S58 engine bay with the VTT Silicone Full Coolant Hose Kit.

Karbonius Composites - Corporate Logo
T#:47199278
Part#: G8XCS01-CF-2
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Upgrade the appearance of your engine bay with this carbon cooling cover from Karbonius. Crafted from pre-preg carbon fiber, this cover is lighter and more visually appealing than the metal unit installed by BMW. This cover features a 2x2 twill weave and comes with a Gloss finish.
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ECS - Corporate Logo
T#:376806
Part#: 54155K23
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Hose Clamp 2 5/16" - 3 1/4"

Ensure secure hose connections with the Hose Clamp 2 5/16" - 3 1/4", a versatile and reliable solution for various applications. Crafted from durable materials, this clamp offers superior strength and corrosion resistance. Its adjustable design allows for a snug fit, reducing the risk of leaks and ensuring optimal performance. Upgrade your hose connections with the precision and reliability of the Hose Clamp 2 5/16" - 3 1/4".

  • Versatile and reliable solution for various applications
  • Superior strength and corrosion resistance
  • Adjustable design for a snug fit
  • Reduces risk of leaks for optimal performance
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Genuine BMW - Corporate Logo
T#:28836404
Part#: 17119882366
Ships in 1-2 days
4% off MSRP $ 106.29

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$ 102.06 USD
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$ 106.29

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$ 102.06 USD
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Genuine BMW G8X S58 3.0L Radiator Lower Stone Chip Guard

Enhance the protection of your BMW's radiator with the Genuine BMW G8X S58 3.0L Radiator Lower Stone Chip Guard. Specifically designed for the G8X S58 3.0L engine, this stone chip guard provides an extra layer of defense against road debris and stone chips. Keep your radiator in pristine condition and ensure optimal cooling performance with this genuine BMW accessory.

  • Genuine BMW part ensures perfect compatibility and fit
  • Provides extra protection against road debris and stone chips
  • Specifically designed for the G8X S58 3.0L engine
  • Helps maintain radiator in pristine condition
  • Ensures optimal cooling performance
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Genuine BMW - Corporate Logo
T#:602507
Part#: 11518651287
Ships in 1-2 days
9% off MSRP $ 88.99

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$ 80.99 USD
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$ 88.99

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Auxillary water pumps are electric water pumps that pump coolant to critical components of your BMW. A failing pump can cause excessive noise and intermittent cooling issues, leading to potential damage if not replaced quickly enough. If the electric motor dies completely, chances are any parts downstream from the pump will overheat and fail, leading to costly repairs and replacements.
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Genuine MINI Engine Coolant Expansion Tank Cap - 17135A1BD89 ...
Fits the expansion tank for the intercooler system only
Genuine MINI - Corporate Logo
T#:28337931
Part#: 17135A1BD89
In Stock
26% off MSRP $ 34.99

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$ 25.99 USD
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26% off MSRP
$ 34.99

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Genuine BMW - Corporate Logo
T#:14419816
Part#: 17138093924
Ships in 1-2 days
6% off MSRP $ 248.99

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$ 233.99 USD
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6% off MSRP
$ 248.99

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$ 233.99 USD
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Genuine BMW - Corporate Logo
T#:14419815
Part#: 17118747893
Ships in 1-2 days
9% off MSRP $ 737.99

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$ 674.99 USD
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$ 737.99

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Precision Raceworks - Corporate Logo
T#:38128032
Part#: 201-0394-SIL
Ships in 7 Business Days
$ 94.99 USD
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BMW Silver Auxiliary Coolant Reservoir Cap is the perfect upgrade for BMW owners looking to enhance both the aesthetics and functionality of their engine bay. Unlike generic aftermarket caps that overlook critical pressure regulation, this precision-engineered cap retains the OEM pressure release functionality, ensuring safe and reliable coolant system performance.

Crafted from high-quality billet aluminum, this reservoir cap offers superior durability and resistance to heat and fluids, preventing warping or degradation over time. Unlike adhesive-based cap covers that can loosen or fall off, this cap is a direct replacement for the factory component, providing a secure, high-performance solution.

  • OEM pressure release functionality – Maintains proper system regulation for optimal coolant performance
  • Premium billet aluminum construction – Offers enhanced durability and longevity
  • Direct replacement design – Secure fit without adhesives or modifications
  • Resistant to heat and fluids – Ensures long-lasting reliability in extreme conditions
  • Performance-inspired look – Adds a sleek, high-end appearance to your engine bay
  • Upgraded durability – Prevents cracking, leaks, and premature wear

Upgrade your BMW’s cooling system with the BMW Silver Auxiliary Coolant Reservoir Cap, blending performance, reliability, and premium styling.

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Precision Raceworks - Corporate Logo
T#:38128031
Part#: 201-0394-BLK
Ships in 9 Business Days
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BMW Black Auxiliary Coolant Reservoir Cap is the perfect upgrade for BMW owners looking to enhance both the aesthetics and functionality of their engine bay. Unlike generic aftermarket caps that overlook critical pressure regulation, this precision-engineered cap retains the OEM pressure release functionality, ensuring safe and reliable coolant system performance.

Crafted from high-quality billet aluminum, this reservoir cap offers superior durability and resistance to heat and fluids, preventing warping or degradation over time. Unlike adhesive-based cap covers that can loosen or fall off, this cap is a direct replacement for the factory component, providing a secure, high-performance solution.

  • OEM pressure release functionality – Maintains proper system regulation for optimal coolant performance
  • Premium billet aluminum construction – Offers enhanced durability and longevity
  • Direct replacement design – Secure fit without adhesives or modifications
  • Resistant to heat and fluids – Ensures long-lasting reliability in extreme conditions
  • Performance-inspired look – Adds a sleek, high-end appearance to your engine bay
  • Upgraded durability – Prevents cracking, leaks, and premature wear

Upgrade your BMW’s cooling system with the BMW Black Auxiliary Coolant Reservoir Cap, blending performance, reliability, and premium styling.

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Precision Raceworks - Corporate Logo
T#:38128029
Part#: 201-0394-BLU
Ships in 9 Business Days
$ 94.99 USD
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$ 94.99 USD
Only available at this price
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BMW Blue Auxiliary Coolant Reservoir Cap is the perfect upgrade for BMW owners looking to enhance both the aesthetics and functionality of their engine bay. Unlike generic aftermarket caps that overlook critical pressure regulation, this precision-engineered cap retains the OEM pressure release functionality, ensuring safe and reliable coolant system performance.

Crafted from high-quality billet aluminum, this reservoir cap offers superior durability and resistance to heat and fluids, preventing warping or degradation over time. Unlike adhesive-based cap covers that can loosen or fall off, this cap is a direct replacement for the factory component, providing a secure, high-performance solution.

  • OEM pressure release functionality – Maintains proper system regulation for optimal coolant performance
  • Premium billet aluminum construction – Offers enhanced durability and longevity
  • Direct replacement design – Secure fit without adhesives or modifications
  • Resistant to heat and fluids – Ensures long-lasting reliability in extreme conditions
  • Performance-inspired look – Adds a sleek, high-end appearance to your engine bay
  • Upgraded durability – Prevents cracking, leaks, and premature wear

Upgrade your BMW’s cooling system with the BMW Blue Auxiliary Coolant Reservoir Cap, blending performance, reliability, and premium styling.

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Precision Raceworks - Corporate Logo
T#:47679257
Part#: 622-0291-BLAK
Ships in 9 Business Days
New Item
$ 184.99 USD
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$ 184.99 USD
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The Precision Raceworks Billet Coolant Cap Set is a functional and stunningly stylish way to add a nice touch to any engine bay! These caps come in three color options, so there is always a color that will work for you! Black with Billet Silver, Black with Blue, and the Stealth series (all black). Many people don't realize it, but the OEM caps have a pressure release valve built into them. Oftentimes, aftermarket companies don't know this either or just don't care. But our team cares about proper function just as much as we care about the appearance of every product we design. For pressure relief, our caps incorporate the OEM internals, so you get all the functionality of the original caps, ensuring a safe and reliable system in place. These caps offer superior style and performance-grade components that guarantee a reliable fit every time. Durable billet aluminum construction provides long-lasting protection and dependability that will upgrade your engine bay for years to come. PLEASE NOTE: These do require assembly and swapping the pressure relief valves from your old caps to your new billet caps.
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Coolant Cap Bundle - Silver
For model years up to 2023
Precision Raceworks - Corporate Logo
T#:47679259
Part#: 622-0291-SIL
Ships in 9 Business Days
New Item
$ 184.99 USD
Only available at this price
Free Shipping on orders $49 and up
$ 184.99 USD
Only available at this price
Free Shipping on orders $49 and up
The Precision Raceworks Billet Coolant Cap Set is a functional and stunningly stylish way to add a nice touch to any engine bay! These caps come in three color options, so there is always a color that will work for you! Black with Billet Silver, Black with Blue, and the Stealth series (all black). Many people don't realize it, but the OEM caps have a pressure release valve built into them. Oftentimes, aftermarket companies don't know this either or just don't care. But our team cares about proper function just as much as we care about the appearance of every product we design. For pressure relief, our caps incorporate the OEM internals, so you get all the functionality of the original caps, ensuring a safe and reliable system in place. These caps offer superior style and performance-grade components that guarantee a reliable fit every time. Durable billet aluminum construction provides long-lasting protection and dependability that will upgrade your engine bay for years to come. PLEASE NOTE: These do require assembly and swapping the pressure relief valves from your old caps to your new billet caps.
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DO88 - Corporate Logo
T#:43615041
Part#: OC-210
Ships on Sep 22, 2026
$ 684.99 USD
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$ 684.99 USD
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Bremmen Parts - Corporate Logo
T#:15511827
Part#: 11537502779
Ships on Sep 25, 2026
Sale - Save 3% $ 46.99

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

$ 45.58 USD
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Sale - Save 3%
$ 46.99

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

$ 45.58 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.
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AUTOTECKNIC - Corporate Logo
T#:14419861
Part#: BM-0701
Special Order: No Guaranteed ETA
$ 550.00 USD
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$ 550.00 USD
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The AutoTecknic Dry Carbon Cooling shroud will provide your car with better air induction, providing the intake and engine with cooler air during high-speed driving; some customers have even reported better gas mileage and power gains.
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ECS - Corporate Logo
T#:33412932
Part#: 61132359999
In Stock
Sale - Save 25% $ 10.99

This product was last offered at the strikethrough price on
06-14-2026

$ 8.24 USD
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Sale - Save 25%
$ 10.99

This product was last offered at the strikethrough price on
06-14-2026

$ 8.24 USD
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Includes connector housing with terminals and seals. Commonly used for the coolant level sensor.

ECS Tuning replacement harness connectors include all necessary pins and wire seals for a complete harness repair. Whether you have a broken harness connector or need a complete wiring repair, we have the components you need.

Each connector includes an additional terminal in case one becomes lost or damaged during installation.

*OEM cross reference PN# 61132359999 - Commonly used for the coolant level sensor.

Please reference the original part number from the existing connector to confirm fitment, before ordering.

Suggested tools:

Suggested crimping pliers: T#387193
Wire De-pin tools:
12pc De-Pin Tool Set - T#386379
23pc De-Pin Tool Set - T#641943

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Turner Motorsport - Corporate Logo
T#:6181683
Part#: 003115LA01
Ships on Dec 21, 2026
Sale - Save 3% $ 547.99

This product was last offered at the strikethrough price on
06-14-2026

$ 531.55 USD
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Sale - Save 3%
$ 547.99

This product was last offered at the strikethrough price on
06-14-2026

$ 531.55 USD
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Replace your factory, stamped aluminum radiator slam panel with a more lively gloss carbon fiber version for a look that sets your car apart from the rest.

Pop the hood! Say so long to the plain satin black radiator cover, our Turner carbon fiber engine cover looks so good along with the S58 and can transform the appearance of your engine bay in just minutes. One of the first things you do with a new car is take care of all the simple modifications to get the best out car without taking it apart. Remove your factory radiator slam panel and replace it with your new carbon fiber cover to check one modification off the list! Be the one who stands out from the other S58-equipped cars with their hoods open.

Our Turner Carbon radiator cover starts with a mold of the original component to get the best factory-form fitment possible. The cover is made from hand-laid carbon fiber material with pre-impregnated carbon fiber cloth and epoxy resin and finished in a beautiful gloss clear coat for UV-protection and extra durability. Be sure to check out the other incredible carbon fiber pieces Turner offers to enhance your G chassis!

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Meyle - Corporate Logo
T#:40714795
Part#: 3142380005
Special Order: No Guaranteed ETA
$ 9.99 USD
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$ 9.99 USD
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Ensure your BMW's cooling system stays sealed and protected with this dependable Meyle expansion tank cap.
Vargas Turbo Technologies - Corporate Logo
T#:7530033
Part#: COOLANTCAPBLK
Back Ordered
$ 79.99 USD
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$ 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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Schwaben - Corporate Logo
T#:384260
Part#: 015326SCH01A
In Stock
Sale - Save 29% $ 20.99

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

$ 14.99 USD
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Sale - Save 29%
$ 20.99

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

$ 14.99 USD
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Straighten bent fins in heat exchangers like radiators, condensers, and intercoolers obstruct air flow and reduce heat transfer. Paper-thin fins are easily bent, even by slight pressure.


Schwaben - Corporate Logo
T#:377131
Part#: 004170SCH01A
In Stock
Sale - Save 55% $ 63.99

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

$ 28.79 USD
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These pliers feature a spring loaded clamp with a 24" cable and will lock onto the clamp and hold open for easy removal. These pliers are designed to remove metal or plastic self-tightening hose clamps with diameters from 11/16" to 2-1/2" ( 18 to 54mm).
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Bav Auto Tools - Corporate Logo
T#:580395
Part#: B8800082
In Stock
Sale - Save 15% $ 32.99

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

$ 28.04 USD
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Sale - Save 15%
$ 32.99

This product was last offered at the strikethrough price on
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$ 28.04 USD
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Multiple adapters include to fit a variety of vehicles.