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BMW F15 X5 sDrive35i N55 3.0L

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BMW F15 X5 sDrive35i N55 3.0L Engine Thermostat Parts

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Water Pump And Thermostat Kit

ES#4056697 - 11518635090KT5 - Water Pump And Thermostat Kit - Includes everything you need to replace your water pump and thermostat. - Assembled By ECS - BMW

Includes everything you need to replace your water pump and thermostat. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4056697
Mfg#:
11518635090KT5
In Stock
ON SALE! SAVE 31%
$485.99

This product was last offered at the strikethrough price on
06-02-2026

$336.76 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Thermostat Assembly

ES#4669228 - 11537598865 - Thermostat Assembly - A common item to crack causing leaks. - Bavarian Autosport - BMW

A common item to crack causing leaks. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4669228
Mfg#:
11537598865
In Stock
ON SALE! SAVE 10%
$78.99

This product was last offered at the strikethrough price on
08-11-2026

$71.09 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Assembly - N55

ES#4899910 - 11537598865 - Thermostat Assembly - N55 - A common item to crack causing leaks - Wahler - BMW

A common item to crack causing leaks

Brand:
Wahler - Corporate Logo
ES#:
4899910
Mfg#:
11537598865
In Stock
$147.93 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Assembly

ES#4271427 - 11537598865 - Thermostat Assembly - A common item to crack causing leaks. - URO - BMW

A common item to crack causing leaks. 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4271427
Mfg#:
11537598865
In Stock
$83.42 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Assembly

ES#2562699 - 11537598865 - Thermostat Assembly - A common item to crack causing leaks. - Genuine BMW - BMW

A common item to crack causing leaks.

Brand:
Genuine BMW - Corporate Logo
ES#:
2562699
Mfg#:
11537598865
In Stock
16% off MSRP

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

$194.95

This product was last offered at the strikethrough price on
09-02-2026

$163.95 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Installation Kit with Thermostat

It's no secret that modern turbocharged BMW engines run hot. Whether you're turning laps at the track or sitting in summer traffic, high oil temperatures are the enemy of engine longevity and performance. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
5481206
Mfg#:
OTN54.T85KT2
In Stock
ON SALE!
$390.23 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Assembly

ES#4472470 - 11537598865 - Thermostat Assembly - A common item to crack causing leaks. - Vemo - BMW

A common item to crack causing leaks.

Brand:
Vemo - Corporate Logo
ES#:
4472470
Mfg#:
11537598865
Ships in 1 Business Day
$276.99

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

$268.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Coolant Hose

ES#5341133 - 11537649394 - Water Pump Coolant Hose - Connects the water pump to the thermostat housing - Rein - BMW

Connects the water pump to the thermostat housing 2X Entries Into Our F80 M3 Sweepstakes

Brand:
Rein - Corporate Logo
ES#:
5341133
Mfg#:
11537649394
In Stock at Vendor
ON SALE!
$67.99

This product was last offered at the strikethrough price on
08-31-2026

$64.19 USD
Free Shipping
on orders $49 and up

Thermostat Assembly

A common item to crack causing leaks 2X Entries Into Our F80 M3 Sweepstakes

Brand:
Rein - Corporate Logo
ES#:
5491337
Mfg#:
11537598865
Ships in 3 Business Days
ON SALE!
$79.99

This product was last offered at the strikethrough price on
08-31-2026

$75.99 USD

Coolant Thermostat

ES#5491279 - 11537598865 - Coolant Thermostat - Refresh your cooling network with this premium replacement thermostat from Febi Bilstein. - Febi - BMW

Refresh your cooling network with this premium replacement thermostat from Febi Bilstein.

Brand:
Febi - Corporate Logo
ES#:
5491279
Mfg#:
11537598865
Special Order: No Guaranteed ETA
$68.99 USD

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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