BMW Thermostats for BMW X Series E53 (2000-2006)

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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 Replacement kit - 90C
Thermostat Replacement kit - 90C
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:15744051
Part#: 82142209769KT
In Stock
Sale - Save 3% $ 146.99

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

$ 142.74 USD
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Sale - Save 3%
$ 146.99

This product was last offered at the strikethrough price on
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$ 142.74 USD
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Automatic Transmission Thermostat Kit
Automatic Transmission Thermostat Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:57122955
Part#: 17111438819KT2
Back Ordered
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$ 93.66 USD
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$ 93.66 USD
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Keeping your E53 X5 automatic transmission cool is essential for longevity and peak performance. The factory transmission thermostat circuit relies on plastic housings and o-ring seals that deteriorate over time. When the transmission thermostat fails or it's mounting assembly cracks, coolant loss follows putting your transmission at risk of overheating under load.
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Performance Thermostat - 90C - N62, N63, S63, N73, S55
Performance Thermostat - 90C - N62, N63, S63, N73, S55
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:637061
Part#: 11537586885
In Stock
Sale - Save 20% $ 93.99

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

$ 75.06 USD
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$ 93.99

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Includes housing and sealing o-ring A thermostat that opens sooner promotes better cooling in your vehicle. Running a lower temperature thermostat will keep everything much cooler. Keeping the engine cooler will help reduce and improve the life of the seals in your engine, saving you time and money, while also helping to increase engine performance. A tune might be required to gain the most from this modification, as well as to get your car's ECU accustomed to seeing lower temperatures.
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Bav Auto Thermostat With Aluminum Housing - M52TU M54
Bav Auto Thermostat With Aluminum Housing - M52TU M54
10X Entries Into Our F80 M3 Sweepstakes
Bavarian Autosport - Corporate Logo
T#:12544802
Part#: 11531437040
In Stock
Sale - Save 19% $ 104.99

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

$ 84.99 USD
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Sale - Save 19%
$ 104.99

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

$ 84.99 USD
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The plastic thermostat cover in your BMW is a known point of failure. Throughout years of repeated contact with hot coolant, the plastic can crack and cause massive coolant leaks and potential overheating. Eliminate one of the weak links in your cooling system with a replacement aluminum thermostat housing. By installing this aluminum unit, you have no worries as far as plastic housing cracks go
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Thermostat With Housing - 90C
Thermostat With Housing - 90C
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:598978
Part#: 11531436386
In Stock
Sale - Save 20% $ 93.99

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

$ 75.06 USD
Free Shipping
Add to Wish List
Sale - Save 20%
$ 93.99

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

$ 75.06 USD
Free Shipping
Add to Wish List
A thermostat that opens sooner promotes better cooling in your vehicle. Running a lower temperature thermostat will keep everything much cooler. Keeping the engine cooler will help reduce and improve the life of the seals in your engine, saving you time and money, while also help increase engine performance. A tune might be required to gain the most from this modification, as well as to get your car's ECU accustomed to seeing lower temperatures.
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Thermostat With Housing
Thermostat With Housing
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:26494584
Part#: 11537509227
In Stock
Sale - Save 25% $ 60.99

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

$ 45.99 USD
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Sale - Save 25%
$ 60.99

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

$ 45.99 USD
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Thermostat With Housing - 105C
Thermostat With Housing - 105C
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:15511816
Part#: 11531436386
Ships in 9 Business Days
Sale - Save 4% $ 30.99

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

$ 29.67 USD
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Sale - Save 4%
$ 30.99

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

$ 29.67 USD
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A thermostat that opens sooner promotes better cooling in your vehicle. Running a lower temperature thermostat will keep everything much cooler. Keeping the engine cooler will help reduce and improve the life of the seals in your engine, saving you time and money, while also help increase engine performance. A tune might be required to gain the most from this modification, as well as to get your car's ECU accustomed to seeing lower temperatures.
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Thermostat - 105C
Thermostat - 105C
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:15511827
Part#: 11537502779
Ships on Oct 21, 2026
$ 46.99

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

$ 45.99 USD
Free Shipping on orders $49 and up
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$ 45.99 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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