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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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Junction Heat Hose - 11538606278

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T#:36913362

Part#: 11538606278

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Sale - Save 21% $ 54.99

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

$ 43.24 USD

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Sale - Save 21%

$ 54.99

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

$ 43.24 USD

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This junction heat hose, made from rubber, is prone to cracking, dry rot, and brittleness over time, often leading to coolant leaks at the front of the engine. Such leaks pose a significant risk to your engine’s health, as rapid coolant loss can cause overheating and severe damage.

Replace your worn or leaking heat hose with this high-quality OE replacement from Bremmen Parts. Engineered for a precise fit and long-lasting performance, this hose ensures a reliable repair and helps protect your engine from potential overheating.

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HOSE - JUNCTION-HEAT

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T#:546143

Part#: 11538606278

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6% off MSRP $ 84.99

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$ 79.99 USD

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6% off MSRP

$ 84.99

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

$ 79.99 USD

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Hose coming off the small fitting on the thermostat. Replacement coolant hose for damaged or worn items. Dont forget to change all associated parts when doing a cooling service, or to fix a leak.

PROFILE-GASKET

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T#:528940

Part#: 11518632587

Ships in 3 Business Days

15% off MSRP $ 38.99

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

$ 32.99 USD

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15% off MSRP

$ 38.99

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

$ 32.99 USD

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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.

Genuine BMW Profile-Gasket - 11538658571

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T#:222845

Part#: 11538658571

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7% off MSRP $ 14.99

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$ 13.99 USD

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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.

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

In Stock

$ 20.99

This product was last offered at the strikethrough price on
01-31-2026

$ 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.

Oil Cooler Gasket Set

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T#:15048412

Part#: 11428583897

In Stock

$ 21.99

This product was last offered at the strikethrough price on
06-03-2026

$ 16.99 USD

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$ 16.99 USD

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Avoid leaks and other issues by replacing your oil cooler gaskets upon taking out or replacing the unit itself!

Genuine BMW Hose Clamp 07129952104

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T#:6533

Part#: 07129952104

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$ 3.99 USD

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$ 3.99 USD

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GENUINE BMW HOSE CLAMP 07129952104

PENTOFROST NF 50/50 Antifreeze / Coolant Prediluted / Premixed - 1 G...

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T#:34181293

Part#: 8114308

In Stock

Sale - Save 5% $ 20.99

This product was last offered at the strikethrough price on
06-29-2026

$ 19.94 USD

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Sale - Save 5%

$ 20.99

This product was last offered at the strikethrough price on
06-29-2026

$ 19.94 USD

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Blue G11/G48 Coolant Pre-Mixed 50/50

Genuine BMW Isa Screw - 07129905494

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T#:28891

Part#: 07129905494

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5% off MSRP $ 7.74

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$ 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

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

Radiator Return Pipe - B58

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T#:545300

Part#: 11538630023

Ships in 3 Business Days

7% off MSRP $ 329.99

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

$ 306.99 USD

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7% off MSRP

$ 329.99

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

$ 306.99 USD

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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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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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$ 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

In Stock

$ 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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