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BMW M3 Performance Thermostats

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Mosselman S55 Billet Oil Thermostat - Silver

ES#4446093 - OTS55.T85 - Mosselman S55 Billet Oil Thermostat - Silver - The MSL thermostat ensures a cooler oil temperature which will result in more stable performance - Mosselman Turbosystems - BMW

The MSL thermostat ensures a cooler oil temperature which will result in more stable performance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mosselman Turbosystems - Corporate Logo
ES#:
4446093
Mfg#:
OTS55.T85
In Stock
$429.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime 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. 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#:
4817856
Mfg#:
N54N55LTKT
Back Ordered
Auto Notify
ON SALE! SAVE 20%
$152.99

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

$122.38 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Racing Thermostat - 68C

ES#2765161 - MMTSE3692 - Racing Thermostat - 68C - Modified thermostat for high performance applications - Mishimoto - BMW

Modified thermostat for high performance applications affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mishimoto - Corporate Logo
ES#:
2765161
Mfg#:
MMTSE3692
In Stock
$68.99 USD
Free Shipping
on orders $49 and up
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! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For 2008 and up models only
Recommended for track use only!

Brand:
ECS - Corporate Logo
ES#:
4428270
Mfg#:
090743ECS09
Ships in 1-2 days
ON SALE! SAVE 40%
$77.99

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

$46.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 71C

ES#3234563 - 11537836155 - Thermostat - 71C - Low temperature thermostat; with sealing gasket. - Gates - BMW

Low temperature thermostat; with sealing gasket. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Gates - Corporate Logo
ES#:
3234563
Mfg#:
11537836155
Ships in 1 Business Day
$78.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mosselman Thermostat Installation Kit

ES#4447418 - therminstallKT - Mosselman Thermostat Installation Kit - All of the Gaskets needed for Installation - Packaged by Turner - BMW

All of the Gaskets needed for Installation affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Packaged by Turner - Corporate Logo
ES#:
4447418
Mfg#:
THERMINSTALLKT
In Stock
$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

N54/N55 Low Temp Oil Thermostat Kit - 70c

ES#5456347 - 008731KT - N54/N55 Low Temp Oil Thermostat Kit - 70c - New thermostat and spring. Featuring a low temp thermostat - 40 degrees Celsius/ 72 degrees Fahrenheit lower than factory. - Assembled By ECS - BMW

New thermostat and spring. Featuring a low temp thermostat - 40 degrees Celsius/ 72 degrees Fahrenheit lower than factory. 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#:
5456347
Mfg#:
008731KT
In Stock
ON SALE! SAVE 25%
$74.99

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

$56.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 92 Degree Celcius - Vernet

ES#3674980 - TH6243.92J - Thermostat - 92 Degree Celcius - Vernet - 92 Degree Celcius/ 197 Degree Farenheit. - Vernet - BMW

92 Degree Celcius/ 197 Degree Farenheit. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vernet - Corporate Logo
ES#:
3674980
Mfg#:
TH6243.92J
Ships in 1 day
$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Thermostat Bypass/Delete Tube

ES#4376559 - 14-016 - Performance Thermostat Bypass/Delete Tube - Improve coolant flow without a restrictive thermostat - Active Autowerke - BMW

Improve coolant flow without a restrictive thermostat affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Active Autowerke - Corporate Logo
ES#:
4376559
Mfg#:
14-016
Ships in 10 Business Days
5% off MSRP

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

$149.00

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

$141.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Racing Thermostat & Housing

ES#5435314 - MMTS-F80-15 - Racing Thermostat & Housing - Designed to replace the factory thermostat, this unit opens at a lower temperature, allowing coolant to flow through the radiator sooner. - Mishimoto - BMW

Designed to replace the factory thermostat, this unit opens at a lower temperature, allowing coolant to flow through the radiator sooner. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mishimoto - Corporate Logo
ES#:
5435314
Mfg#:
MMTS-F80-15
Ships in 3 Business Days
$139.99 USD
Free Shipping
on orders $49 and up

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