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BMW Cooling System Parts & Accessories for BMW A90 MKV Supra B58 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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Vargas Billet Water Neck - B58 Mk5 Supra/G29 Z4

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T#:7292067

Part#: VTT-A90G29-WN

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$ 147.99 USD

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The Factory B58 TU water neck is plastic and is right in the path of your charge pipe if you lose a connection and it blows off. If this does happen to you it can break the plastic neck emptying your coolant in seconds causing you in the best-case scenario to be stranded, and in the worst-case scenario expensive engine damage. Add some cheap insurance with Vargas' Billet Water neck. Product Details: Plug and play direct factory replacement 6061-T6 Billet aluminum with black anodizing for a corrosion-free life Cheap insurance against a blown charge pipe which could turn into a blown motor

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Wagner Tuning High Performance Radiator Kit - G29 Z4/MkV Supra ...

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T#:5844244

Part#: 400001011

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Sale - Save 10% $ 1,250.00

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$ 1,125.00 USD

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The 2.0 Liter B48 and the 3.0 Liter B58 engines for the G29 Z4 and MkV Supra are equipped with an indirect charge-air cooling circuit. This means 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 radiator come into play. The new developed competition racing core of the WAGNERTUNING high performance radiator increase the radiator volume of the OEM water cooler by a total of 117%. 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 radiator) for its own heat exchange. Furthermore, using an increased amount of cooling water, the entire system can be kept at a lower level over a longer period of time. All WAGNERTUNING radiators 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: 576 mm x 495 mm x 27 mm V = 7,70 Liter A = 2851 cm² Dimensions WT radiator: 524 mm x 468 mm x 68 mm V = 16,70 Liter A = 2454 cm²

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PROFILE-GASKET

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T#:528940

Part#: 11518632587

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$ 33.99 USD

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$ 38.99

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This gasket needs to be replaced when splitting apart your pulley housing from the water pump. Gasket that goes between the coolant pump and the coolant pump front pulley assembly.

Fan Clutch Wrench - 32mm

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T#:641760

Part#: CTAA878

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$ 23.57 USD

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Use to remove and install Fan Clutch Assemblies when replacing Water Pumps or doing other Engine Services

77-85mm - 3/4" Band Hose Clamp

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T#:377877

Part#: 003402ECS07A-05

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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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40-60mm 3/8"/9mm Band Hose Clamp

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T#:341280

Part#: 003402ECS06A-08

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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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Genuine BMW Profile-Gasket - 11538658571

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T#:222845

Part#: 11538658571

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$ 13.99 USD

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$ 14.99

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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.

BMW Water Pump Gasket

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2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:15247123

Part#: 11518632587

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$ 20.99

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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.

Red Line Water Wetter Heat Transfer Agent

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T#:3607

Part#: 1-WW-12Z

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$ 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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Universal 12" Electric Puller Fan - Black

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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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Mishimoto Universal Fan Mount Kit

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T#:363171

Part#: MMFANMOUNT

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$ 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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3/8"/9mm Band Hose Clamp - 50-70mm

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T#:341684

Part#: 003402ECS06A-12

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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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70-90mm 3/8"/9mm Band Hose Clamp

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T#:363017

Part#: 003402ECS06A-11

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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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Schwaben Radiator/ Intercooler Fin Comb

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T#:384260

Part#: 015326SCH01A

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$ 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.

1/2"/12mm Band Hose Clamp - 25-40mm - Priced Each

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T#:385425

Part#: 003402ECS05A-06

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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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Genuine BMW Hose Clamp 07129952104

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T#:6533

Part#: 07129952104

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$ 3.99 USD

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GENUINE BMW HOSE CLAMP 07129952104

60-80mm 1/2"/12mm Band Hose Clamp

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T#:377836

Part#: 003402ECS05A-10

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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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Red Line Water Wetter Coolant Additive

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T#:394769

Part#: REDLINE5A

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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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Band Hose Clamp | 12-20mm 3/8"/9mm

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T#:304266

Part#: 003402ECS06A-03

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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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Genuine BMW Isa Screw - 07129905494

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T#:28891

Part#: 07129905494

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$ 7.33 USD

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$ 7.74

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Genuine water pump hardware. M6x16-8.8. 6 of these screws are found in association with the water pump

90-110mm 3/8"/9mm Band Hose Clamp

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T#:341281

Part#: 003402ECS06A-13

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$ 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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BMS Heat Exchanger Upgrade - G-Chassis B58

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T#:5095728

Part#: GCHASB58HEATEXCH

Ships on Jul 23, 2026

$ 480.00 USD

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$ 480.00 USD

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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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AUTOTECKNIC DRY CARBON FIBER COOLING PLATE - A90 SUPRA

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T#:21078422

Part#: ATK-TO-0007

Ships in 7 Business Days

$ 495.00 USD

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AutoTecknic's Dry Carbon Cooling Plate provides the A90 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. Set your Supra apart from the rest! Treat your car to some better breathing and a sportier look!

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Radiator Pressure Test kit 14 pc

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T#:3629267

Part#: ATD3300

Ships in 6 Business Days

$ 497.99 USD

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Adapters for most European and domestic vehicles

Fan mounting pin - priced each

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T#:598910

Part#: 30130013

In Stock at Vendor

$ 6.99 USD

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Wire pin used to mount electric fan directly to radiator.

16" Fan shroud gasket

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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.

Universal 10" Electric Fan - Black

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T#:378434

Part#: MMFAN10

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$ 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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Mishimoto Performance Auxiliary Radiators - A90 MK5 Toyota Supra, G29...

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T#:638024

Part#: MMRAD-SUP-20A

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$ 610.99 USD

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Dramatically increase the cooling performance of your Supra with Mishimoto's new Performance Aluminum Radiator. Key Features: All aluminum construction More durable and longer-lasting than plastic components 30% more capacity in the same space 180% Increase to external fin surface area Excellent fit and finish Unbeatable lifetime warranty and accident-forgiveness Mishimoto radiators address all of the defects and deficiencies of the stock Supra auxiliary radiators in a well-engineered and price-competitive direct replacement pair. Mishimoto's radiators feature an all-aluminum design that replaces the factory plastic and aluminum stock radiators. BMW style plastic end tanks are notorious for cracking and leaks, whereas the Mishimoto has aluminum end tanks that will never fail. Mishimoto also allows a 30% increase in coolant capacity into the radiator that fits in the original location with no modifications. More coolant volume means the fluid is not heat soaked for as long (less superheated fluid circulating through the engine). For a direct replacement performance radiator, the Mishimoto is hard to beat! Mishimoto was established in 2003 as a supplier of cooling components for drift and rally cars. Their radiators and intercoolers soon found a strong following in the hyper-competitive drift scene where high horsepower and prolonged high revs dictate the need for durable and robust cooling solutions. The catchy Mishimoto name is a combination of the name of the founder's family pet - Mishi - and "moto". All products are designed and tested in the USA using state-of-the-art CAD tools and prototyping and with the continuous evolution of product design. Mishimoto is so dedicated to quality that they offer a limited lifetime warranty and accident forgiveness. 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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CSF Universal Large Single-Pass Oil Cooler - Universal Application ...

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Universal fitment design - modifications may be necessary to run this cooler

T#:53608839

Part#: 8371

Ships in 4 Business Days

$ 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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Vargas Remote Oil Cooler Adapter - BMW B58, Toyota A90/A91

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T#:51778122

Part#: VTT-B58-OIL-COOL

Ships in 10 Business Days

$ 157.99 USD

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The VTT Billet B58 Remote Oil Cooler Adapter is an ideal upgrade for B58-powered platforms.

Vargas Billet HMM Delete Kit - BMW B58TU

Fits all B58 TU / Gen 2 B58 engines

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T#:51672725

Part#: VTT-B58-COOLING-

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$ 199.99 USD

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The VTT Billet B58 HMM Delete is for enthusiasts who want to remove the bulky, plastic factory coolant unit in favor of a robust, motorsport-oriented setup.

Vargas Billet Coolant Block-Off - BMW B58 Engine

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T#:52094566

Part#: VTTFAB040BLKB58

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$ 31.99 USD

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Engineered for precision and durability, the VTT-FAB-040 B58 Block-Off Flange is the definitive solution for managing oil and coolant paths during fabrication.

Radiator Return Pipe - B58

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T#:545300

Part#: 11538630023

Ships in 3 Business Days

6% off MSRP $ 329.99

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$ 309.99 USD

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$ 329.99

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Coolant pipe that runs from the thermostat next to the engine block. Make sure your cooling system is working properly and leak free. When your in the tight spaces doing a service it makes sense to change all associated parts.

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Hose Clamp 2 5/16" - 3 1/4" - priced each

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T#:376806

Part#: 54155K23

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$ 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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Thermostat O-ring

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T#:526204

Part#: 11538658572

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$ 9.99

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$ 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.

O-RING

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T#:580584

Part#: C32348

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$ 3.99

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$ 2.99 USD

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$ 2.99 USD

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Anti-Freeze Tester

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T#:641679

Part#: CTAA195

Ships on Jul 24, 2026

$ 9.98 USD

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Tests all ethylene glycol solutions with radiator hot or cold

2 Pin Connector

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T#:33412932

Part#: 61132359999

Ships on Jul 28, 2026

Sale - Save 25% $ 10.99

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$ 8.24 USD

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$ 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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