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BMW E66 745Li N62 4.4L

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BMW E66 745Li N62 4.4L Engine Thermostat Parts

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Performance Thermostat - 90C

ES#4158502 - 11537586885 - Performance Thermostat - 90C - Includes housing and sealing o-ring - Bremmen Parts - BMW
ECS Tuning recommends this product.

Includes housing and sealing o-ring 10X Entries For Our 25th Anniversary Sweepstakes!
Low-temp thermostat reduces stresses on engine components and improves performance

Brand:
Bremmen Parts - Corporate Logo
ES#:
4158502
Mfg#:
11537586885
In Stock
ON SALE! SAVE 20%
$93.99

This product was last offered at the strikethrough price on
05-02-2026

$75.06 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Thermostat - 90C

ES#2807159 - 11537586885-90C - Performance Thermostat - 90C - Includes housing and sealing o-ring - Hamburg Tech - BMW

Includes housing and sealing o-ring We Price Match - Give Us A Call or Chat! Low-temp thermostat reduces stresses on engine components and improves performance

Brand:
Hamburg Tech - Corporate Logo
ES#:
2807159
Mfg#:
11537586885-90C
In Stock
$114.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 105C

ES#258751 - 11537586885 - Thermostat - 105C - Includes housing and sealing o-ring - Wahler - BMW

Includes housing and sealing o-ring

Brand:
Wahler - Corporate Logo
ES#:
258751
Mfg#:
11537586885
In Stock
$72.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 105C

ES#205475 - 11537586885 - Thermostat - 105C - Includes housing and sealing o-ring - Genuine BMW - BMW

Includes housing and sealing o-ring

Brand:
Genuine BMW - Corporate Logo
ES#:
205475
Mfg#:
11537586885
Ships in 3 Business Days
8% off MSRP

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

$135.99

This product was last offered at the strikethrough price on
05-06-2026

$124.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement kit - 90C

ES#2966600 - 11537586885KT - Thermostat Replacement kit - 90C - Low-temp thermostat reduces stresses on engine components and improves performance - Assembled By ECS - BMW

Low-temp thermostat reduces stresses on engine components and improves performance 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2966600
Mfg#:
11537586885KT
In Stock
ON SALE!
$146.99

This product was last offered at the strikethrough price on
05-02-2026

$142.76 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Thermostat Assembly - 105C

ES#5425884 - 11537586885 - Thermostat Assembly - 105C - Includes temperature sensor ports where applicable. - URO - BMW

Includes temperature sensor ports where applicable. 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
URO - Corporate Logo
ES#:
5425884
Mfg#:
11537586885
In Stock
$77.88

This product was last offered at the strikethrough price on
03-08-2026

$74.99 USD
Free Shipping
on orders $49 and up

Thermostat - 105C

ES#3559938 - 11537586885-105C - Thermostat - 105C - Includes housing and sealing o-ring - Hamburg Tech - BMW

Includes housing and sealing o-ring We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
3559938
Mfg#:
11537586885-105C
Ships in 2 Business Days
$63.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Gasket

ES#3137345 - 11531440192 - Thermostat Gasket - Seals the thermostat to the water pump - Victor Reinz - BMW

Seals the thermostat to the water pump

Brand:
Victor Reinz - Corporate Logo
ES#:
3137345
Mfg#:
11531440192
Ships in 4 Business Days
$4.07 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Gasket

ES#4000715 - 11531440192 - Thermostat Gasket - Seals the thermostat to the water pump - URO - BMW

Seals the thermostat to the water pump 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4000715
Mfg#:
11531440192
Ships in 2 Business Days
ON SALE!
$0.97

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

$0.92 USD
Free Shipping
on orders $49 and up

Thermostat

ES#2895471 - 11530150976 - Thermostat - Includes gasket - Vemo - BMW

Includes gasket

Brand:
Vemo - Corporate Logo
ES#:
2895471
Mfg#:
11530150976
In Stock at Vendor
$91.99

This product was last offered at the strikethrough price on
05-07-2026

$88.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 105C

ES#4669232 - 11537502779 - Thermostat - 105C - Includes housing and sealing o-ring - Bremmen Parts - BMW

Includes housing and sealing o-ring 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4669232
Mfg#:
11537502779
Ships on Aug 10, 2026
ON SALE!
$46.99

This product was last offered at the strikethrough price on
05-02-2026

$45.58 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Gasket

ES#5339189 - 071.220 - Thermostat Gasket - Seals the thermostat to the water pump - Elring - BMW

Seals the thermostat to the water pump 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Elring - Corporate Logo
ES#:
5339189
Mfg#:
071.220
Special Order: No Guaranteed ETA
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Gasket

ES#5339298 - 773.870 - Thermostat Gasket - Seals the thermostat to the coolant pump - Elring - BMW

Seals the thermostat to the coolant pump 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Elring - Corporate Logo
ES#:
5339298
Mfg#:
773.870
Special Order: No Guaranteed ETA
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Coolant Thermostat

ES#5456667 - 3282280016 - Engine Coolant Thermostat - Calibrated for exact opening and closing temperatures, ensuring the engine reaches operating temperature quickly to reduce emissions and wear. - Meyle - BMW

Calibrated for exact opening and closing temperatures, ensuring the engine reaches operating temperature quickly to reduce emissions and wear. 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Meyle - Corporate Logo
ES#:
5456667
Mfg#:
3282280016
Special Order: No Guaranteed ETA
$47.99 USD
Free Shipping
on orders $49 and up

More About Engine Thermostat Parts

Your thermostat helps regulate engine temperatures by allowing the coolant to circulate through the radiator once it opens. If it fails, this might mean it never closes, but worst case, it could mean your coolant doesn't get to the radiator. Stay ahead of cooling issues by replacing your thermostat regularly with an OEM thermostat or quality aftermarket thermostat from our selection.

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Manufacturer names and/or part numbers are used only for identification purposes.

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