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BMW F85 X5 M S63 4.4L

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BMW F85 X5 M S63 4.4L Engine Thermostat Parts

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Performance Water Pump & Thermostat Kit

ES#4818346 - 11537843738KT - Performance Water Pump & Thermostat Kit - Featuring a Genuine BMW water pump and upgraded HT 90*C thermostat! - Assembled By ECS - BMW

Featuring a Genuine BMW water pump and upgraded HT 90*C thermostat! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4818346
Mfg#:
11537843738KT
Ships in 1 day
$614.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial 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
In Stock
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 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

Coolant Bleeder Screw - Priced Each

ES#25157 - 11537793373 - Coolant Bleeder Screw - Priced Each - Comes with O-Ring - Genuine BMW - BMW MINI

Comes with O-Ring

Brand:
Genuine BMW - Corporate Logo
ES#:
25157
Mfg#:
11537793373
In Stock
6% off MSRP

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

$17.99

This product was last offered at the strikethrough price on
08-05-2026

$16.99 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 1 Business Day
$0.97 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 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

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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