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BMW Engine Thermostat Parts

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N52 Exact-Fit Silicone Radiator Hoses

ES#4877083 - 008641LA03 - N52 Exact-Fit Silicone Radiator Hoses - Retains OEM fitment with superior looks and durability. Pre-assembled with factory connectors for easy installation! - ECS - BMW
ECS Tuning recommends this product.

Retains OEM fitment with superior looks and durability. Pre-assembled with factory connectors for easy installation! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

For Vehicles With Engine Code N52B30 (Non-SULEV w/o Auxiliary Heating)

Brand:
ECS - Corporate Logo
ES#:
4877083
Mfg#:
008641LA03
In Stock
ON SALE!
$127.99

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

$124.15 USD
Free Shipping
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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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
$117.99

This product was last offered at the strikethrough price on
12-11-2025

$114.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat With Aluminum Housing - N20

ES#4759997 - 11538635689M - Thermostat With Aluminum Housing - N20 - Aluminum construction for improved durability over stock design! Includes an integrated thermostat. - Bremmen Parts - BMW

Aluminum construction for improved durability over stock design! Includes an integrated thermostat. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4759997
Mfg#:
11538635689M
In Stock
ON SALE! SAVE 20%
$125.99

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

$100.36 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat With Housing

ES#10944 - 11537509227 - Thermostat With Housing - A common item to crack causing leaks - Wahler - BMW
ECS Tuning recommends this product.

A common item to crack causing leaks affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Wahler - Corporate Logo
ES#:
10944
Mfg#:
11537509227
In Stock
$66.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Water Pump And Thermostat Kit

ES#2804281 - 11517632426KT5 - Performance Water Pump And Thermostat Kit - Includes a 74c race thermostat - Assembled By ECS - BMW

Includes a 74c race thermostat affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Reuses factory thermostat housing

Brand:
Assembled By ECS - Corporate Logo
ES#:
2804281
Mfg#:
11517632426KT5
In Stock
ON SALE! SAVE 20%
$514.99

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

$410.26 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Water Pump & Thermostat Replacement Kit

ES#4818688 - 11537586784KT - Water Pump & Thermostat Replacement Kit - Featuring an OEM Pierburg all-aluminum water pump and URO thermostat. - Assembled By ECS - BMW

Featuring an OEM Pierburg all-aluminum water pump and URO thermostat. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4818688
Mfg#:
11537586784KT
In Stock
ON SALE! SAVE 13%
$743.99

This product was last offered at the strikethrough price on
03-31-2026

$644.91 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Water Pump And Thermostat

ES#4820921 - 11517586925KT - Water Pump And Thermostat - Featuring Hamburg Technic Coolant Pump & Thermostat with hardware - Hamburg Tech - BMW

Featuring Hamburg Technic Coolant Pump & Thermostat with hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
4820921
Mfg#:
11517586925KT
In Stock
$339.99 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Wahler - Corporate Logo
ES#:
4899910
Mfg#:
11537598865
In Stock
$118.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime 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. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4669228
Mfg#:
11537598865
In Stock
ON SALE! SAVE 10%
$77.99

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

$70.19 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Thermostat Assembly

ES#4179815 - 11538642560 - Coolant Thermostat Assembly - Also called a Heat Management Module by BMW, this electronic thermostat controls coolant flow based on engine temperatures - Genuine BMW - BMW

Also called a Heat Management Module by BMW, this electronic thermostat controls coolant flow based on engine temperatures affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
4179815
Mfg#:
11538642560
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.

$446.99

This product was last offered at the strikethrough price on
06-04-2026

$419.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat

ES#2681810 - 11537601158 - Thermostat - Restore proper function to your cooling system - Wahler - BMW
ECS Tuning recommends this product.

Restore proper function to your cooling system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Wahler - Corporate Logo
ES#:
2681810
Mfg#:
11537601158
In Stock
$121.98 USD
Free Shipping
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. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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

ES#4017637 - 11537549476 - Thermostat - Restore proper function to your cooling system - URO - BMW

Restore proper function to your cooling system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4017637
Mfg#:
11537549476
In Stock
$74.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump & Thermostat Kit - B46 2.0L

ES#4869783 - 11518638026eKT - Water Pump & Thermostat Kit - B46 2.0L - Includes an OEM water pump, heat management module, and 1 gallon of coolant concentrate - Assembled By ECS - BMW

Includes an OEM water pump, heat management module, and 1 gallon of coolant concentrate affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For model years 2017-2019

Brand:
Assembled By ECS - Corporate Logo
ES#:
4869783
Mfg#:
11518638026EKT
Ships on Jul 29, 2026
Auto Notify
ON SALE!
$395.99

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

$361.31 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Water Pump And Thermostat Kit

ES#3659484 - 11517632426KT-1 - Water Pump And Thermostat Kit - Includes everything you need to replace your water pump and thermostat using Genuine BMW components - Genuine BMW - BMW

Includes everything you need to replace your water pump and thermostat using Genuine BMW components affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
3659484
Mfg#:
11517632426KT-1
Ships in 1 day
$900.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Water Pump And Thermostat Kit

ES#2960474 - 11517604027KT - 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2960474
Mfg#:
11517604027KT
In Stock
ON SALE!
$482.99

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

$468.09 USD
Free Shipping
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.

Other BMW Engine Thermostat Parts

Let us help you find the parts that fit your BMW

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

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