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BMW 328i Engine Thermostat Parts

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Thermostat Replacement Kit

ES#2582085 - N524TSTKT1 - Thermostat Replacement Kit - Includes mounting hardware and coolant - Wahler - BMW

Includes mounting hardware and coolant

Brand:
Wahler - Corporate Logo
ES#:
2582085
Mfg#:
N524TSTKT1
In Stock
$111.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Ultimate Performance Water Pump And Thermostat Kit

ES#4172081 - 11517586925KT16 - Ultimate Performance Water Pump And Thermostat Kit - Includes a 74c race thermostat, water pump, and ECS silicone hoses - Assembled By ECS - BMW

Includes a 74c race thermostat, water pump, and ECS silicone hoses 10X Entries Into Our F80 M3 Sweepstakes
For vehicles with plastic thermostat housing

Brand:
Assembled By ECS - Corporate Logo
ES#:
4172081
Mfg#:
11517586925KT16
Ships in 1-2 days
ON SALE!
$1128.99

This product was last offered at the strikethrough price on
10-05-2026

$1128.36 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Performance Water Pump And Thermostat Kit

ES#2804283 - 11517586925KT6 - Performance Water Pump And Thermostat Kit - Includes a 74c race thermostat - Featuring a Genuine BMW pump - Assembled By ECS - BMW

Includes a 74c race thermostat - Featuring a Genuine BMW pump 10X Entries Into Our F80 M3 Sweepstakes
For vehicles with plastic thermostat housing

Brand:
Assembled By ECS - Corporate Logo
ES#:
2804283
Mfg#:
11517586925KT6
Ships in 1-2 days
$920.99

This product was last offered at the strikethrough price on
10-05-2026

$919.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Water Pump And Thermostat Kit

ES#2960127 - 11518635089KT - Water Pump And Thermostat Kit - Includes everything you need to replace your water pump and thermostat - Genuine BMW - BMW

Includes everything you need to replace your water pump and thermostat

Brand:
Genuine BMW - Corporate Logo
ES#:
2960127
Mfg#:
11518635089KT
Back Ordered
$840.99 USD
Free Shipping
This product is lifetime replacement eligible Partial 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 Assembly

ES#4810957 - 11537509227 - Thermostat Assembly - Commonly cracked or broken - Includes Thermostat, Sensor, & Gasket - URO - BMW

Commonly cracked or broken - Includes Thermostat, Sensor, & Gasket 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4810957
Mfg#:
11537509227
Ships in 1 Business Day
$41.99 USD
Free Shipping
on orders $49 and up
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

Thermostat Replacement Kit

ES#2582080 - N524TSTKT - Thermostat Replacement Kit - Includes mounting hardware and coolant - Genuine BMW - BMW

Includes mounting hardware and coolant

Brand:
Genuine BMW - Corporate Logo
ES#:
2582080
Mfg#:
N524TSTKT
In Stock
$298.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Thermostat W/ Housing & Sensor

ES#5435334 - MMTS-E46-99E - Thermostat W/ Housing & Sensor - Designed to restore original cooling performance, making it an essential component for routine maintenance or emergency repair. - Mishimoto - BMW

Designed to restore original cooling performance, making it an essential component for routine maintenance or emergency repair.

Brand:
Mishimoto - Corporate Logo
ES#:
5435334
Mfg#:
MMTS-E46-99E
In Stock
$91.99 USD
Free Shipping
on orders $49 and up

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

Performance Water Pump And Thermostat Kit

ES#2804557 - 11517586925KT9 - Performance Water Pump And Thermostat Kit - Includes a 74c race thermostat - Featuring a Pierburg pump - Assembled By ECS - BMW

Includes a 74c race thermostat - Featuring a Pierburg pump 10X Entries Into Our F80 M3 Sweepstakes
For vehicles with plastic thermostat housing

Brand:
Assembled By ECS - Corporate Logo
ES#:
2804557
Mfg#:
11517586925KT9
In Stock
$677.99

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

$527.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Thermostat

ES#2813514 - 11537549476 - Thermostat - Restore proper function to your cooling system - Hamburg Tech - BMW

Restore proper function to your cooling system We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2813514
Mfg#:
11537549476
Ships in 1 Business Day
$75.99 USD
Free Shipping
on orders $49 and up

Thermostat - 92C

ES#3032192 - 11537511083 - Thermostat - 92C - Includes o-ring - Mahle - BMW

Includes o-ring

Brand:
Mahle - Corporate Logo
ES#:
3032192
Mfg#:
11537511083
In Stock
$30.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hex Bolt With Washer - Priced Each

ES#4865874 - 11531740317KT - Hex Bolt With Washer - Priced Each - Used to secure the thermostat - Bremmen Parts - BMW

Used to secure the thermostat 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4865874
Mfg#:
11531740317KT
In Stock
ON SALE! SAVE 39%
$3.99

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

$2.43 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Racing Thermostat - 70C

ES#4338353 - mmts-e46-99v2 - Racing Thermostat - 70C - Modified thermostat for high performance applications. Use with factory thermostat housing. - Mishimoto - BMW

Modified thermostat for high performance applications. Use with factory thermostat housing.

Brand:
Mishimoto - Corporate Logo
ES#:
4338353
Mfg#:
MMTS-E46-99V2
Ships in 3 Business Days
$135.99 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.

Let us help you find the parts that fit your BMW

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