BMW Cooling System Parts & Accessories for BMW 3 Series G20 (2019+)

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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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Bosch - Corporate Logo
T#:639196
Part#: 0392023486
In Stock
$ 77.99

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

$ 58.99 USD
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$ 58.99 USD
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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. Prevent this from happening by installing this brand new Auxillary Water Pump from OEM Bosch!
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Coolant Cap Bundle - Silver
For model years up to 2023
Precision Raceworks - Corporate Logo
T#:47679259
Part#: 622-0291-SIL
In Stock
$ 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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CTA Tools - Corporate Logo
T#:641760
Part#: CTAA878
Ships on Oct 14, 2026
$ 23.57 USD
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Use to remove and install Fan Clutch Assemblies when replacing Water Pumps or doing other Engine Services

Redline - Corporate Logo
T#:3607
Part#: 1-WW-12Z
In Stock
$ 15.99 USD
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Water Wetter is a unique wetting agent for cooling systems which reduces coolant temperatures by as much as 30*F. This liquid product can be used to provide rust and corrosion protection in plain water for racing engines, which provides much better heat transfer properties than glycol-based antifreeze. Or it can be added to new or used antifreeze to improve the heat transfer of ethylene and propylene glycol systems. Designed for modern aluminum, cast iron, copper, brass, and bronze systems.

We have been using RedLine Oil in our street cars and race cars for years. Hands-down, it is the Number One brand of high performance lubricant for BMWs.
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1/2"/12mm Band Hose Clamp - 25-40mm - Priced Each
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:385425
Part#: 003402ECS05A-06
In Stock
Sale - Save 25% $ 4.99

This product was last offered at the strikethrough price on
06-13-2026

$ 3.74 USD
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Sale - Save 25%
$ 4.99

This product was last offered at the strikethrough price on
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$ 3.74 USD
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Upgrade Your BMW Maintenance with Stainless Steel Hose Clamps from ECS Tuning

ECS Tuning introduces premium full stainless steel hose clamps, offering superior quality and convenience for your BMW maintenance. Avoid dealership delays and overpricing by choosing from a selection of band widths, ensuring you receive top-quality hose clamps without overpaying.

Key Benefits:

  • Premium full stainless steel hose clamps
  • Various band widths for enhanced convenience
  • High-quality alternative to dealership pricing
  • Readily available stock eliminates waiting time
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Coolant Thermostat Assembly
For models with the earlier B48D, B46D, or B46X engines - Not compatible with the later...
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:50311454
Part#: 11538642560
In Stock
Sale - Save 15% $ 364.99

This product was last offered at the strikethrough price on
09-16-2026

$ 310.24 USD
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Sale - Save 15%
$ 364.99

This product was last offered at the strikethrough price on
09-16-2026

$ 310.24 USD
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70-90mm 3/8"/9mm Band Hose Clamp
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:363017
Part#: 003402ECS06A-11
In Stock
Sale - Save 25% $ 6.99

This product was last offered at the strikethrough price on
06-13-2026

$ 5.24 USD
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Sale - Save 25%
$ 6.99

This product was last offered at the strikethrough price on
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$ 5.24 USD
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Upgrade your BMW with ECS Tuning's Stainless Steel Hose Clamps, designed for convenience and durability. With various band widths and German-style T-bolts, these clamps offer easy adjustment to your required diameter. Say goodbye to dealer pricing and enjoy the quality you love at ECS Tuning.

  • Full stainless steel construction
  • Various band widths available
  • German-style T-bolts for easy adjustment
  • Convenient solution for hose clamp replacement
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60-80mm 1/2"/12mm Band Hose Clamp
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:377836
Part#: 003402ECS05A-10
In Stock
Sale - Save 25% $ 6.99

This product was last offered at the strikethrough price on
06-13-2026

$ 5.24 USD
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Sale - Save 25%
$ 6.99

This product was last offered at the strikethrough price on
06-13-2026

$ 5.24 USD
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ECS Tuning Stainless Steel Hose Clamps for BMW

Upgrade your BMW's hose clamps with ECS Tuning Stainless Steel Hose Clamps, designed for convenience and durability. Say goodbye to long waits and overpriced dealership clamps. With various band widths available, these stainless steel clamps ensure a secure fit for your vehicle's hoses.

Benefits:

  • Convenient replacement for worn-out hose clamps
  • Made of durable stainless steel for long-lasting performance
  • Available in various band widths for versatile use
  • Affordable alternative to dealership pricing
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Band Hose Clamp | 12-20mm 3/8"/9mm
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:304266
Part#: 003402ECS06A-03
In Stock
Sale - Save 25% $ 4.99

This product was last offered at the strikethrough price on
06-13-2026

$ 3.74 USD
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Sale - Save 25%
$ 4.99

This product was last offered at the strikethrough price on
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$ 3.74 USD
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Secure hoses in your BMW effortlessly with the ECS 3/8" / 9mm Band Hose Clamp (12-20mm). Specifically designed for BMW models, this clamp ensures a snug fit and reliable hold for hoses measuring between 12mm to 20mm. Crafted with durable materials, these clamps provide exceptional resistance against leaks and are ideal for various automotive applications. Upgrade your BMW's hose security with these reliable ECS hose clamps.
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Oil Cooler Gasket Set
2X Entries Into Our F80 M3 Sweepstakes
Elring - Corporate Logo
T#:15048412
Part#: 11428583897
Ships in 1 Business Day
$ 21.25

This product was last offered at the strikethrough price on
08-26-2026

$ 19.14 USD
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$ 19.14 USD
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Avoid leaks and other issues by replacing your oil cooler gaskets upon taking out or replacing the unit itself!
Electronic Thermostat And Coolant Distribution Module
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:50311455
Part#: 11538843406
In Stock
Sale - Save 43% $ 397.99

This product was last offered at the strikethrough price on
08-05-2026

$ 224.99 USD
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Sale - Save 43%
$ 397.99

This product was last offered at the strikethrough price on
08-05-2026

$ 224.99 USD
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77-85mm - 3/4" Band Hose Clamp
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:377877
Part#: 003402ECS07A-05
In Stock
Sale - Save 25% $ 25.99

This product was last offered at the strikethrough price on
06-13-2026

$ 19.49 USD
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Sale - Save 25%
$ 25.99

This product was last offered at the strikethrough price on
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$ 19.49 USD
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Upgrade your BMW's hose clamps with the 77-85mm - 3/4" Band Hose Clamp from Turner Motorsport. These full 304 stainless steel clamps offer convenience and quality without the dealership price tag. German-style T-bolts allow for easy adjustment to your required diameter, ensuring a secure fit every time.

  • Made of durable 304 stainless steel for long-lasting performance
  • German-style T-bolt design for easy size adjustment
  • Convenient band widths for versatile applications
  • Quality alternative to dealership pricing
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Genuine BMW Coolant Hose - Waterp Pump to Thermostat Module - BMW G42...
For models with the earlier B48D, B46D, or B46X engines - Not compatible with the later...
Genuine BMW - Corporate Logo
T#:618269
Part#: 11538650981
In Stock
8% off MSRP $ 109.99

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

$ 100.99 USD
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8% off MSRP
$ 109.99

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

$ 100.99 USD
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Over time, rubber hoses and plastic coolant flanges can become brittle due to numerous heat cycles. This often leads to cracks and coolant leaks on the left side of the engine. Additionally, the two o-rings that seal this hose to the water pump flange and the thermostat module housing can flatten, leading to leaks when reinstalled. When servicing your cooling system, it is advised to replace this hose to prevent leaks and potential overheating. This is especially helpful due to its cramped location, requiring the intake manifold to be removed for replacement.
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Genuine BMW - Corporate Logo
T#:222843
Part#: 11428583897
Ships in 1-2 days
13% off MSRP $ 59.99

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

$ 51.99 USD
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13% off MSRP
$ 59.99

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

$ 51.99 USD
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Situated on the engine's oil filter housing, this set of gaskets plays a crucial role in sealing the housing to the engine block. Over time, exposure to heat and oil can cause these rubber gaskets to become brittle, compromising their ability to seal the mating surfaces effectively.

Given that oil flows from the block to the filter housing, any leaks from these seals can lead to significant issues. Fortunately, BMW offers a comprehensive set of these gaskets, providing a solution to all oil leaks and restoring your vehicle to optimal performance.

How can you identify if your oil cooler gaskets are leaking?

Oil drips beneath the car when it's parked. Visible oil accumulation on the intake/heat exchanger side of the engine block. Frequent low oil level warnings during driving.

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Schwaben Radiator/ Intercooler Fin Comb
10X Entries Into Our F80 M3 Sweepstakes
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.

Water/Coolant Pump With Support
For models with the earlier B48D, B46D, or B46X engines and without the Energy Recovery...
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:49648357
Part#: 11518650988
In Stock
Sale - Save 15% $ 237.99

This product was last offered at the strikethrough price on
09-16-2026

$ 202.29 USD
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Sale - Save 15%
$ 237.99

This product was last offered at the strikethrough price on
09-16-2026

$ 202.29 USD
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BMW Water Pump Gasket
2X Entries Into Our F80 M3 Sweepstakes
Elring - Corporate Logo
T#:15247123
Part#: 11518632587
In Stock
$ 16.99

This product was last offered at the strikethrough price on
09-21-2026

$ 13.49 USD
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$ 13.49 USD
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In order to ensure a leak free driving experience, replace these gaskets whenever you change or work on your water pump. If you are noticing small leaks, these might be to blame.
90-110mm 3/8"/9mm Band Hose Clamp
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:341281
Part#: 003402ECS06A-13
In Stock
Sale - Save 40% $ 6.99

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

$ 4.19 USD
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Sale - Save 40%
$ 6.99

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

$ 4.19 USD
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ECS Tuning 304 Stainless Steel Hose Clamps

Once again, ECS Tuning has found a way to make life easier for working on your car. Need new hose clamps but don't want to wait to order it from the dealership or pay more than you should for a hose clamp? That's where we come in! These are full 304 stainless steel hose clamps with various band widths for your convenience. They are German style using T-bolts to adjust in size to your required diameter. Never pay dealer pricing again, but still get the quality you love here at ECS Tuning.

  • Made from high-quality 304 stainless steel for durability
  • German-style design with T-bolts allows for easy size adjustment
  • Various band widths for versatile use
  • Avoid dealership pricing without compromising on quality
  • Perfect for BMW enthusiasts seeking affordable yet reliable hose clamps
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Genuine BMW - Corporate Logo
T#:28891
Part#: 07129905494
In Stock
5% off MSRP $ 7.74

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

$ 7.33 USD
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5% off MSRP
$ 7.74

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

$ 7.33 USD
Free Shipping on orders $49 and up
Genuine water pump hardware. M6x16-8.8. 6 of these screws are found in association with the water pump
3/8"/9mm Band Hose Clamp - 50-70mm
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:341684
Part#: 003402ECS06A-12
In Stock
Sale - Save 25% $ 6.99

This product was last offered at the strikethrough price on
06-13-2026

$ 5.24 USD
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Sale - Save 25%
$ 6.99

This product was last offered at the strikethrough price on
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$ 5.24 USD
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Elevate your BMW maintenance with ECS Tuning's 304 stainless steel hose clamps, offering convenience and top-quality performance at an affordable price. Designed with various band widths and German-style T-bolts for adjustable sizing, these hose clamps ensure a secure fit for your specific diameter needs. Skip the dealership wait and excessive pricing; ECS Tuning provides reliable, dealership-quality hose clamps without the premium cost, ensuring your car receives the care it deserves.
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Genuine BMW - Corporate Logo
T#:6533
Part#: 07129952104
In Stock
$ 3.99 USD
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GENUINE BMW HOSE CLAMP 07129952104

Mishimoto - Corporate Logo
T#:363171
Part#: MMFANMOUNT
In Stock
$ 15.99 USD
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The Mishimoto universal fan mount kit is used to mount a Mishimoto electric fan to any Mishimoto aluminum radiator. Great for custom applications, the Mishimoto fan can be mounted in any convenient position on the radiator. Universal fan mount fits any Mishimoto electric fan Ideal for custom applications Mounts fan in any convenient position Mishimoto Lifetime Warranty
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Redline - Corporate Logo
T#:394769
Part#: REDLINE5A
In Stock
Starting at $ 15.99 USD
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Starting at $ 15.99 USD
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Water Wetter is a unique wetting agent for cooling systems which reduces coolant temperatures by as much as 30*F. This liquid product can be used to provide rust and corrosion protection in plain water for racing engines, which provides much better heat transfer properties than glycol-based antifreeze.
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Genuine BMW - Corporate Logo
T#:222845
Part#: 11538658571
In Stock
7% off MSRP $ 14.99

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

$ 13.99 USD
Free Shipping on orders $49 and up
7% off MSRP
$ 14.99

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

$ 13.99 USD
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Gasket that goes between the thermostat and radiator return pipe. Gaskets and seals are a wear item that should be replaced in conjunction with associated parts.


40-60mm 3/8"/9mm Band Hose Clamp
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:341280
Part#: 003402ECS06A-08
In Stock
Sale - Save 25% $ 3.99

This product was last offered at the strikethrough price on
06-13-2026

$ 2.99 USD
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Sale - Save 25%
$ 3.99

This product was last offered at the strikethrough price on
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$ 2.99 USD
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ECS Tuning 304 Stainless Steel Hose Clamps

Revolutionize your car maintenance with ECS Tuning's premium 304 stainless steel hose clamps. Eliminate dealership delays and inflated prices! These German-style clamps utilize T-bolts for hassle-free diameter adjustment. With various band widths available, these durable clamps ensure reliability without the hefty cost. Experience dealership-quality products at affordable rates, exclusively at ECS Tuning.

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Burger Motorsports - Corporate Logo
T#:5095728
Part#: GCHASB58HEATEXCH
Ships on Oct 13, 2026
$ 480.00 USD
Free Shipping on orders $49 and up
This heat exchanger upgrade is a high-quality replacement that dramatically lowers engine oil and water temperatures by providing a 50% larger cooling surface than OEM. The benefits are most noticed during back to back runs at higher boost levels where the factory cooling capacity can be overwhelmed resulting in ignition timing pull and reduced turbo efficiency. Direct bolt-in installation.
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Spal - Corporate Logo
T#:598825
Part#: 30130074
In Stock at Vendor
$ 17.99 USD
Free Shipping on orders $49 and up
Provides .25" stand off from radiator, does not work with high output fans.

Rein - Corporate Logo
T#:34181294
Part#: 11538854737
Ships in 4 Business Days
$ 46.99 USD
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The Rein Water Feed Tube with O-ring CHT0924 is a premium replacement part designed for BMW vehicles, ensuring optimal engine cooling performance. Manufactured with high-quality materials, this water feed tube guarantees durability and a precise fit, making it an ideal solution for restoring or upgrading your BMW’s cooling system. Available through Turner Motorsport, this part ensures the prevention of coolant leaks and maintains the efficiency of your vehicle’s cooling system.

This water feed tube is engineered to withstand the intense heat and pressure found in high-performance engines, delivering long-lasting reliability. It’s compatible with a variety of BMW models, making it a versatile choice for both professional mechanics and DIY enthusiasts.

Benefits:

  • Precise fitment: Specifically designed for BMW applications to ensure seamless replacement.
  • High-quality materials: Built to endure high-temperature and high-pressure environments.
  • O-ring seal: Ensures a leak-proof connection, preventing coolant loss and engine overheating.
  • Optimized engine performance: Helps maintain consistent engine temperatures for improved vehicle performance.
  • Available at Turner Motorsport: Trusted source for BMW parts and accessories.

Keep your BMW running smoothly with the Rein Water Feed Tube with O-ring CHT0924, designed to restore your cooling system’s functionality and keep your engine in peak condition.

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Engine Oil Cooler
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:42436716
Part#: 11428583901
Ships in 1 Business Day
$ 52.99 USD
Free Shipping on orders $49 and up
Engine oil coolers are critical for keeping oil temperatures in check, preventing premature breakdown and maintaining proper lubrication. When oil gets too hot, it loses viscosity and can't effectively protect vital engine components like bearings—which can lead to serious, even catastrophic, failures. If your oil cooler is damaged or has failed, replacing it is essential to protect your engine and keep everything running smoothly.
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Spal - Corporate Logo
T#:598910
Part#: 30130013
In Stock at Vendor
$ 6.99 USD
Free Shipping on orders $49 and up
Wire pin used to mount electric fan directly to radiator.

Nissens - Corporate Logo
T#:27905106
Part#: 11428583901
Ships in 1 Business Day
$ 106.99

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

$ 104.99 USD
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$ 104.99 USD
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Engine oil coolers help reduce the oil temperature, preventing the oil from breaking down prematurely and losing its lubricating properties. Engine oil coolers play a crucial role in regulating oil temperature, ensuring proper lubrication, and optimizing engine performance and longevity. Engine oil that is too hot drops in viscosity and does not provide adequate lubrication to sensitive engine components such as bearings, which can fail catastrophically if not properly lubricated. If your engine oil cooler has been damaged or has failed we recommend replacing it to ensure no damage occurs to your engine.
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Genuine BMW Coolant Expansion Tank - Low Temp Circuit - BMW G42 G20 G...
For models with the Gen2 engines only (B58D & B46D/X) - Not for use with the later Gen3...
Genuine BMW - Corporate Logo
T#:613871
Part#: 17138610653
Ships in 1-2 days
6% off MSRP $ 170.99

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

$ 160.99 USD
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6% off MSRP
$ 170.99

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

$ 160.99 USD
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If your coolant reservoir tank has cracked or if one of the mounting points has broken, this is the perfect replacement to ensure your coolant system remains leak-free. This reservoir specifically works with the low-temp circuit, which is responsible for cooling your manifold-integrated intercooler
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Genuine BMW Upper Radiator Coolant Hose - BMW G42 G20 G22/23/26 B48D/...
For models with a production date up to 07/2021 or a production date from 07/2021+ with...
Genuine BMW - Corporate Logo
T#:618222
Part#: 17128654834
Ships in 1-2 days
6% off MSRP $ 141.99

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

$ 132.99 USD
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6% off MSRP
$ 141.99

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

$ 132.99 USD
Free Shipping on orders $49 and up
Replace your old coolant hose with a brand new hose from Genuine BMW to eliminate coolant leaks and prevent overheating.

Genuine BMW - Corporate Logo
T#:526204
Part#: 11538658572
In Stock
$ 8.99 USD
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O ring that seals the thermostat to the coolant pump. New seals are a must when doing any repairs.
Genuine BMW - Corporate Logo
T#:624783
Part#: 11539494424
Ships in 1-2 days
13% off MSRP $ 14.99

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

$ 12.99 USD
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13% off MSRP
$ 14.99

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

$ 12.99 USD
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This preformed seal is an o-ring seal that seals the connection between the thermostat housing/heat management module and the engine block. This seal is the larger of two seals located on the side of the heat management module.
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Cap
D=6
Genuine BMW - Corporate Logo
T#:191368
Part#: 17128515062
In Stock
4% off MSRP $ 9.24

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

$ 8.91 USD
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4% off MSRP
$ 9.24

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

$ 8.91 USD
Free Shipping on orders $49 and up


Genuine BMW Cap -
This item fits the following BMW Chassis:
F15,F25 X3

Fits BMW Engines including:
N57N



Genuine BMW - Corporate Logo
T#:606607
Part#: 11538650086
In Stock
4% off MSRP $ 179.99

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

$ 171.99 USD
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4% off MSRP
$ 179.99

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

$ 171.99 USD
Free Shipping on orders $49 and up
Genuine BMW - Corporate Logo
T#:622579
Part#: 11539425963
Ships in 3 Business Days
$ 4.99 USD
Free Shipping on orders $49 and up
Seals the connection between the Heat Management Module and the water pump housing
Hose Clamp 2 5/16" - 3 1/4" - priced each
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:376806
Part#: 54155K23
Ships in 1-2 days
$ 4.99 USD
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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#:624784
Part#: 11539494425
Ships in 1-2 days
13% off MSRP $ 14.99

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

$ 12.99 USD
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13% off MSRP
$ 14.99

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

$ 12.99 USD
Free Shipping on orders $49 and up
This preformed seal is an o-ring seal that seals the connection between the thermostat housing/heat management module and the engine block. This seal is the larger of two seals located on the side of the heat management module.
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Genuine BMW Water Pump & Thermostat Kit - BMW B58C B58D (B58TU) ...
For vehicles with the B58D (Gen2) engine only - Will not fit the earlier B58A (Gen1) en...
For models without the 48V Mild Hybrid package
Genuine BMW - Corporate Logo
T#:29333997
Part#: 11518482251KT
Ships in 3 Business Days
$ 724.99 USD
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$ 724.99 USD
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If your water pump or thermostat has failed, this kit includes all the basic components needed to replace and restore your cooling system! Included: Water Pump Thermostat Housing (aka Heat Management Module) Coolant Outlet Pipe (L-Pipe) Gaskets & Seals
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Genuine BMW - Corporate Logo
T#:618224
Part#: 17128654854
Ships in 1-2 days
6% off MSRP $ 141.99

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

$ 132.99 USD
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6% off MSRP
$ 141.99

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

$ 132.99 USD
Free Shipping on orders $49 and up

Genuine BMW Upper Radiator Cooant Hose - BMW G42 G20 G22/23/26 B48D/B...
For vehicles with a production date of 07/2021+ with Control DSC package (S8WEA)
Genuine BMW - Corporate Logo
T#:49857443
Part#: 17125A44477
Ships in 7 Business Days
6% off MSRP $ 141.99

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

$ 132.99 USD
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6% off MSRP
$ 141.99

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

$ 132.99 USD
Free Shipping on orders $49 and up
Replace your old coolant hose with a brand new hose from Genuine BMW to eliminate coolant leaks and prevent overheating.
Victor Reinz - Corporate Logo
T#:580584
Part#: C32348
Ships in 1-3 days
$ 3.99

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

$ 2.99 USD
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$ 2.99 USD
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Genuine BMW Coolant Expansion Tank - Low Temp Circuit - BMW G20 G22/2...
For models with the later Gen3 engines only (B58N & B48P) - Not for use with the early ...
Genuine BMW - Corporate Logo
T#:49857448
Part#: 17135A270D3
Ships in 4 Business Days
6% off MSRP $ 170.99

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

$ 160.99 USD
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6% off MSRP
$ 170.99

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

$ 160.99 USD
Free Shipping on orders $49 and up
If your coolant reservoir tank has cracked or if one of the mounting points has broken, this is the perfect replacement to ensure your coolant system remains leak-free. This reservoir specifically works with the low-temp circuit, which is responsible for cooling your manifold-integrated intercooler
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Precision Raceworks - Corporate Logo
T#:38128031
Part#: 201-0394-BLK
Ships in 9 Business Days
$ 94.99 USD
Free Shipping on orders $49 and up

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
Free Shipping on orders $49 and up

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
$ 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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CTA Tools - Corporate Logo
T#:641679
Part#: CTAA195
In Stock
$ 9.98 USD
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Tests all ethylene glycol solutions with radiator hot or cold
2 Pin Connector
10X Entries Into Our F80 M3 Sweepstakes
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
Free Shipping on orders $49 and up
Sale - Save 25%
$ 10.99

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

$ 8.24 USD
Free Shipping on orders $49 and up

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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