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BMW Cooling System Parts & Accessories for BMW X Series F26 (2015+)

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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Titanium Coolant Bleeder Screw Upgrade

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:38621407

Part#: BMS-TCBS

Back Ordered

$ 25.00 USD

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$ 25.00 USD

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Replace your fragile OEM plastic coolant bleeder screw, which is prone to cracking and failure, with a premium titanium upgrade built for strength and style under the hood. Factory plastic components weaken over time due to constant heat cycles, leading to brittleness and potential failure. Our titanium replacement delivers superior durability, being twice as strong as aluminum yet 45% lighter than steel, ensuring unmatched resilience and long-term reliability for your coolant system. More than an upgrade, it’s a must-have for engine longevity. CNC-machined from solid titanium, each screw features a laser-etched Burger Motorsports logo and is hand-burned to create unique color patterns—no two are alike. A heavy-duty replacement O-ring is included for a perfect fit.

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Thermostat With Aluminum Housing - N20

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:30828065

Part#: 11538635689M

In Stock

Sale - Save 20% $ 125.99

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

$ 100.36 USD

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Sale - Save 20%

$ 125.99

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

$ 100.36 USD

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Coolant Expansion Tank Cap

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:36032339

Part#: 17117639020

In Stock

Sale - Save 20% $ 14.99

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

$ 11.99 USD

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Sale - Save 20%

$ 14.99

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

$ 11.99 USD

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Bremmen Water Pump Bolt - M8x34 - BMW N20 2.0L

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:36913363

Part#: 11517602125

In Stock

Sale - Save 35% $ 4.99

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

$ 3.26 USD

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Sale - Save 35%

$ 4.99

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

$ 3.26 USD

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This external torx head screw is a direct replacement for the costly OEM screw, which must be replaced during every water pump service.

Quantity 3 required for complete replacement.

Thermostat Housing

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:15511821

Part#: 11537586784

Special Order: No Guaranteed ETA

Sale - Save 3% $ 79.99

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

$ 77.59 USD

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Qty

Sale - Save 3%

$ 79.99

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

$ 77.59 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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BMW Cooling System Parts & Accessories for BMW X Series F26 (2015+)

Sub-Categories

Titanium Coolant Bleeder Screw Upgrade

Thermostat With Aluminum Housing - N20

Coolant Expansion Tank Cap

Bremmen Water Pump Bolt - M8x34 - BMW N20 2.0L

Thermostat Housing

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