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BMW M3 Engine Thermostat Parts

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Low Temp Oil Thermostat Kit - N54/N55

ES#4428270 - 090743ECS09 - Low Temp Oil Thermostat Kit - N54/N55 - Control those oil temps with a new thermostat! - ECS - BMW

Control those oil temps with a new thermostat! 10X Entries Into Our F80 M3 Sweepstakes
For 2008 and up models only
Recommended for track use only!

Brand:
ECS - Corporate Logo
ES#:
4428270
Mfg#:
090743ECS09
In Stock
ON SALE! SAVE 25%
$79.99

This product was last offered at the strikethrough price on
06-13-2026

$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Water Pump & Thermostat Replacement Kit

ES#4818073 - 11517846361KT3 - Performance Water Pump & Thermostat Replacement Kit - Featuring a Genuine BMW water pump and HT 90*C thermostat! - Assembled By ECS - BMW

Featuring a Genuine BMW water pump and HT 90*C thermostat! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4818073
Mfg#:
11517846361KT3
Ships in 1-2 days
$496.99

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

$495.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Thermostat - 80*C

ES#24765 - 11531318274 - Thermostat - 80*C - Does not include gasket - Genuine BMW - BMW

Does not include gasket

Brand:
Genuine BMW - Corporate Logo
ES#:
24765
Mfg#:
11531318274
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.

$147.44

This product was last offered at the strikethrough price on
10-23-2026

$123.15 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Aluminum Thermostat Housing

ES#205285 - 11531722531 - Aluminum Thermostat Housing - Aluminum construction for improved durability over stock design! For your M50, M52, S50, or S54 Engine. - URO Premium - BMW
ECS Tuning recommends this product.

Aluminum construction for improved durability over stock design! For your M50, M52, S50, or S54 Engine. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
URO Premium - Corporate Logo
ES#:
205285
Mfg#:
11531722531
In Stock
$21.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit

ES#2718468 - 11537836155KT - Thermostat Replacement Kit - Includes thermostat with o-ring, and coolant - Genuine BMW - BMW

Includes thermostat with o-ring, and coolant

Brand:
Genuine BMW - Corporate Logo
ES#:
2718468
Mfg#:
11537836155KT
Ships in 1-2 days
$176.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

S65 Silicone Radiator Hoses

ES#4819358 - 008645LA01 - S65 Silicone Radiator Hoses - Retain OEM fitment with superior looks and durability! - ECS - BMW

Retain OEM fitment with superior looks and durability! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4819358
Mfg#:
008645LA01
In Stock
ON SALE! SAVE 15%
$97.99

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

$83.09 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit

ES#2984802 - 11531318274KT - Thermostat Replacement Kit - Includes thermostat, o-ring, and coolant - Assembled By ECS - BMW

Includes thermostat, o-ring, and coolant 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2984802
Mfg#:
11531318274KT
In Stock
$151.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Auxiliary Thermostat

ES#4760000 - 13541730682 - Auxiliary Thermostat - Thermostat that controls water flow temperature to the throttle body - Bremmen Parts - BMW

Thermostat that controls water flow temperature to the throttle body 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4760000
Mfg#:
13541730682
In Stock
ON SALE! SAVE 10%
$64.99

This product was last offered at the strikethrough price on
10-08-2026

$58.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 88C

ES#25085 - 11537511580 - Thermostat - 88C - Common point of failure in the cooling system. - Genuine BMW - BMW

Common point of failure in the cooling system.

Brand:
Genuine BMW - Corporate Logo
ES#:
25085
Mfg#:
11537511580
Ships in 1-2 days
3% off MSRP

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

$59.99

This product was last offered at the strikethrough price on
10-23-2026

$57.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 79 degrees C

ES#25204 - 11537836155 - Thermostat - 79 degrees C - Includes sealing gasket - Genuine BMW - BMW

Includes sealing gasket

Brand:
Genuine BMW - Corporate Logo
ES#:
25204
Mfg#:
11537836155
Ships in 1-2 days
21% off MSRP

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

$162.66

This product was last offered at the strikethrough price on
10-23-2026

$127.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

E30 Heater Core Thermostat

ES#177574 - 64118391926 - E30 Heater Core Thermostat - Located inline between engine and heater core - Genuine BMW - BMW

Located inline between engine and heater core

Brand:
Genuine BMW - Corporate Logo
ES#:
177574
Mfg#:
64118391926
Ships in 1-2 days
3% off MSRP

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

$109.99

This product was last offered at the strikethrough price on
10-23-2026

$106.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Electric Fan Conversion Kit

ES#2855348 - e36fndkt6KT7 - Electric Fan Conversion Kit - Free up some extra horsepower by replacing your fan with a Mishimoto e-fan - Assembled By ECS - BMW

Free up some extra horsepower by replacing your fan with a Mishimoto e-fan 10X Entries Into Our F80 M3 Sweepstakes
For vehicles with production date up to 09/1995

Brand:
Assembled By ECS - Corporate Logo
ES#:
2855348
Mfg#:
E36FNDKT6KT7
In Stock
$329.99

This product was last offered at the strikethrough price on
09-27-2026

$311.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Thermostat - 75*C

ES#4730406 - 11537511580 - Thermostat - 75*C - If you own a classic M50, M52, or S52-powered BMW, you already know that keeping the engine cooling system happy is the golden rule of ownership. - Wahler - BMW

If you own a classic M50, M52, or S52-powered BMW, you already know that keeping the engine cooling system happy is the golden rule of ownership.

Brand:
Wahler - Corporate Logo
ES#:
4730406
Mfg#:
11537511580
Ships in 1 Business Day
$60.99

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

$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Electric Fan Conversion Kit

ES#2812843 - E36FNDKT6 - Electric Fan Conversion Kit - Free up some extra horsepower by replacing your fan with a Mishimoto e-fan - Assembled By ECS - BMW

Free up some extra horsepower by replacing your fan with a Mishimoto e-fan 10X Entries Into Our F80 M3 Sweepstakes
For vehicles with production date from 09/1995

Brand:
Assembled By ECS - Corporate Logo
ES#:
2812843
Mfg#:
E36FNDKT6
In Stock
$550.99

This product was last offered at the strikethrough price on
07-02-2026

$538.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

N54/N55 Low Temp Oil Thermostat Kit - 70c

ES#4817856 - n54n55ltKT - N54/N55 Low Temp Oil Thermostat Kit - 70c - New billet thermostat cover, hardware and gasket. Featuring a low temp thermostat - 40 degrees Celsius/ 72 degrees Fahrenheit lower than factory. - Assembled By ECS - BMW

New billet thermostat cover, hardware and gasket. Featuring a low temp thermostat - 40 degrees Celsius/ 72 degrees Fahrenheit lower than factory. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4817856
Mfg#:
N54N55LTKT
Back Ordered
ON SALE! SAVE 18%
$152.99

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

$125.58 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit

ES#2602973 - 11537831103KT - Thermostat Replacement Kit - Includes thermostat, o-ring, and coolant - Genuine BMW - BMW

Includes thermostat, o-ring, and coolant

Brand:
Genuine BMW - Corporate Logo
ES#:
2602973
Mfg#:
11537831103KT
In Stock
$165.99

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

$164.99 USD
Free Shipping
This product is lifetime replacement eligible Partial 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.

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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