BMW Thermostats for BMW 7 Series E38 (1995-2001)

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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 Housing - 90C
Thermostat With Housing - 90C
For vehicles with a production date from 09/1998
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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
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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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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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Genuine BMW Thermostat With Housing - E39 540i, E38 740i
Genuine BMW Thermostat With Housing - E39 540i, E38 740i
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:360668
Part#: 11531436386
In Stock
Sale - Save 5% $ 192.99

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

$ 182.87 USD
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Sale - Save 5%
$ 192.99

This product was last offered at the strikethrough price on
06-25-2026

$ 182.87 USD
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Don't take chances! Proper maintenance is required to keep your BMW performing at peak levels. The thermostat basically controls when your car will overheat. The sensor on the housing is also used by the engine computer to set the fuel mapping on the engine. A faulty sensor or thermostat will lead to the engine running rich (too much fuel). This thermostat fits BMW E39 540i 99-03 E38 740i 99-01 X5 4.4i 4.6is 99-2003 with M62 engine. 

This item fits the following BMWs: 
1999-2001  E38 BMW  740i 740il 
1999-2003  E39 BMW  540i 
1999-2003  E53 BMW  X5 4.4i X5 4.6is

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Genuine BMW Thermostat With Housing - E39 540i
Genuine BMW Thermostat With Housing - E39 540i
For vehicles with production date up to 09/1998
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:360671
Part#: 11531437526
In Stock
Sale - Save 8% $ 192.99

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

$ 178.05 USD
Free Shipping
Add to Wish List
Sale - Save 8%
$ 192.99

This product was last offered at the strikethrough price on
06-15-2026

$ 178.05 USD
Free Shipping
Add to Wish List

Don't take chances! Proper maintenance is required to keep your BMW performing at peak levels. The thermostat basically controls when your car will overheat. The sensor on the housing is also used by the engine computer to set the fuel mapping on the engine. A faulty sensor or thermostat will lead to the engine running rich (too much fuel).

This item fits the following BMWs: 
up to 09/1999  E38 BMW  740i 740il
up to 09/1999  E39 BMW  540i

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Rein Thermostat Assembly E38 740iL
Rein Thermostat Assembly E38 740iL
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:34114233
Part#: 11531437526
Ships in 1 Business Day
Sale - Save 5% $ 68.99

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

$ 65.54 USD
Free Shipping on orders $49 and up
Add to Wish List
Sale - Save 5%
$ 68.99

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

$ 65.54 USD
Free Shipping on orders $49 and up
Add to Wish List
Regulates Engine coolant temperature. Comes with aluminum housing, O-ring, and sensor.
Thermostat With Housing - 105C
Thermostat With Housing - 105C
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Bremmen Parts - Corporate Logo
T#:15511816
Part#: 11531436386
Ships in 8 Business Days
Sale - Save 4% $ 30.99

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

$ 29.67 USD
Free Shipping on orders $49 and up
Add to Wish List
Sale - Save 4%
$ 30.99

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

$ 29.67 USD
Free Shipping on orders $49 and up
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.
Show More Show Less
Bremmen Parts Thermostat Assembly - E38, E39
Bremmen Parts Thermostat Assembly - E38, E39
For vehicles with production date up to 09/1998
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Bremmen Parts - Corporate Logo
T#:388457
Part#: 11531437526
Back Ordered
Sale - Save 15% $ 56.99

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

$ 48.44 USD
Free Shipping on orders $49 and up
Add to Wish List
Sale - Save 15%
$ 56.99

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

$ 48.44 USD
Free Shipping on orders $49 and up
Add to Wish List
Comes with aluminum housing, o-ring & sensor

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