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BMW 135i Engine Thermostat Parts

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Thermostat

ES#25121 - 11537549476 - Thermostat - Restore proper function to your cooling system - Genuine BMW - BMW

Restore proper function to your cooling system

Brand:
Genuine BMW - Corporate Logo
ES#:
25121
Mfg#:
11537549476
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.

$316.79

This product was last offered at the strikethrough price on
10-19-2026

$265.77 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit

ES#2713411 - 11537601158KT1 - Thermostat Replacement Kit - Includes coolant - Assembled By ECS - BMW

Includes coolant 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2713411
Mfg#:
11537601158KT1
In Stock
ON SALE! SAVE 24%
$106.99

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

$81.42 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Heater Return & Thermostat Hose

ES#1897621 - 17127599455 - Heater Return & Thermostat Hose - Replace damaged hoses to stop leaks and make sure your vehicle is running its absolute best - Genuine BMW - BMW

Replace damaged hoses to stop leaks and make sure your vehicle is running its absolute best

Brand:
Genuine BMW - Corporate Logo
ES#:
1897621
Mfg#:
17127599455
Ships in 1-2 days
2% off MSRP

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

$215.99

This product was last offered at the strikethrough price on
10-19-2026

$211.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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

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

Thermostat

ES#2079676 - 11537601158 - Thermostat - Restore proper function to your cooling system - Genuine BMW - BMW

Restore proper function to your cooling system

Brand:
Genuine BMW - Corporate Logo
ES#:
2079676
Mfg#:
11537601158
In Stock
9% off MSRP

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

$325.99

This product was last offered at the strikethrough price on
10-19-2026

$297.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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

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

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 Installation Kit with Thermostat

ES#5481206 - OTN54.T85KT2 - 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. - Assembled By ECS - BMW

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 Replacement Kit

ES#2713410 - 11537601158KT - Thermostat Replacement Kit - Includes coolant - Genuine BMW - BMW

Includes coolant

Brand:
Genuine BMW - Corporate Logo
ES#:
2713410
Mfg#:
11537601158KT
In Stock
$326.99

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

$325.99 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 2 Business Days
$75.99 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
10-19-2026

$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Assembly

ES#4810958 - 11537601158 - Thermostat Assembly - Restore proper function to your cooling system - URO - BMW

Restore proper function to your cooling system 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4810958
Mfg#:
11537601158
Ships in 2 Business Days
$78.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat

Restore proper function to your cooling system

Brand:
Gates - Corporate Logo
ES#:
3235200
Mfg#:
11537601158
Ships on Nov 6, 2026
$108.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Screw Plug - Priced Each

ES#25836 - 11617568552 - Screw Plug - Priced Each - This is the screw plug found in the oil cooler thermostat assembly - Genuine BMW - BMW

This is the screw plug found in the oil cooler thermostat assembly

Brand:
Genuine BMW - Corporate Logo
ES#:
25836
Mfg#:
11617568552
Ships in 1-2 days
$9.99 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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