BMW Thermostats for BMW X Series F25 (2011+)

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BMW thermostats are known to fail, but luckily they typically fail wide open - meaning that your car can still cool. We offer thermostats from various OE suppliers we trust along with upgraded motorsport specific thermostats where applicable to make sure your BMW stays cool on track.
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Thermostat With Aluminum Housing - N20
Thermostat With Aluminum Housing - N20
Bremmen Parts - Corporate Logo
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
Free Shipping on orders $49 and up
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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
Free Shipping on orders $49 and up
Add to Wish List
Engine Coolant Thermostat - F25 F26 - N55
Engine Coolant Thermostat - F25 F26 - N55
Rein - Corporate Logo
T#:55965845
Part#: 11537586784
Ships in 4 Business Days
New Item
$ 85.99 USD
Free Shipping on orders $49 and up
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$ 85.99 USD
Free Shipping on orders $49 and up
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Maintain exact control over your N55’s operating temperatures under demanding street and track conditions with this Rein replacement thermostat unit. Engineered to match factory standards, this complete housing and thermostat assembly ensures your cooling system handles thermal loads flawlessly to prevent heat soak or dangerous overheating.
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Thermostat Housing
Thermostat Housing
Wahler - Corporate Logo
T#:47850791
Part#: 11537586784
Ships on Aug 13, 2026
$ 142.99 USD
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$ 142.99 USD
Free Shipping on orders $49 and up
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Thermostat Housing
Thermostat Housing
Bremmen Parts - Corporate Logo
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
Free Shipping on orders $49 and up
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Sale - Save 3%
$ 79.99

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

$ 77.59 USD
Free Shipping on orders $49 and up
Add to Wish List
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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