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BMW 135i Performance Cooling Parts

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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
ON SALE!
$22.99

This product was last offered at the strikethrough price on
06-15-2026

$21.64 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

N54 Performance Silicone Radiator Hoses

ES#4690094 - 008640LA01 - N54 Performance Silicone Radiator Hoses - Upper and lower radiator silicone coolant hose kit to upgrade from your stock rubber hoses. Includes stainless steel hose clamps. Made to re-use your factory connections. - ECS - BMW

Upper and lower radiator silicone coolant hose kit to upgrade from your stock rubber hoses. Includes stainless steel hose clamps. Made to re-use your factory connections. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4690094
Mfg#:
008640LA01
In Stock
ON SALE! SAVE 25%
$121.99

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

$91.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Universal Oil Cooler - 19 Row, with Thermostat - Black

ES#2764104 - MM0CULTBK - Universal Oil Cooler - 19 Row, with Thermostat - Black - Serious engine oil cooling for the most demanding engines - Mishimoto - Audi BMW Volkswagen MINI

Serious engine oil cooling for the most demanding engines affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For custom applications only. Not a direct bolt on.

Brand:
Mishimoto - Corporate Logo
ES#:
2764104
Mfg#:
MM0CULTBK
In Stock
$599.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Cooling System Refresh Kit - Level 3

ES#2739952 - 11510392553RKT2 - ECS Cooling System Refresh Kit - Level 3 - Everything you need to totally service your cooling system, including a radiator and belt service. Now Includes ECS Billet Aluminum Radiator Drain Plug! - Assembled By ECS - BMW

Everything you need to totally service your cooling system, including a radiator and belt service. Now Includes ECS Billet Aluminum Radiator Drain Plug! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with automatic or DCT transmission only

Brand:
Assembled By ECS - Corporate Logo
ES#:
2739952
Mfg#:
11510392553RKT2
Back Ordered
Auto Notify
ON SALE!
$1316.99

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

$1199.63 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Thermostat Cover Upgrade Kit - Black

ES#4428271 - 090744ECS09 - Thermostat Cover Upgrade Kit - Black - Dress up your engine bay and add a bit of additional oil cooling - ECS - BMW

Dress up your engine bay and add a bit of additional oil cooling affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4428271
Mfg#:
090744ECS09
Back Ordered
Auto Notify
ON SALE! SAVE 15%
$79.99

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

$67.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turner N54 Performance Radiator Kit - Manual Transmission

ES#4932493 - 004443LA01KT - Turner N54 Performance Radiator Kit - Manual Transmission - Features A CSFxTurner High Performance Dual Core Radiator and must have upgraded silicone cooling lines needed for a confidence inspiring cooling enhancement. - Assembled By ECS - BMW

Features A CSFxTurner High Performance Dual Core Radiator and must have upgraded silicone cooling lines needed for a confidence inspiring cooling enhancement. 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#:
4932493
Mfg#:
004443LA01KT
Ships on Sep 14, 2026
Auto Notify
ON SALE!
$1092.99

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

$1004.64 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Replacement Universal Oil Cooler - 19 Row

ES#2855412 - MM0C-19 - Replacement Universal Oil Cooler - 19 Row - Serious engine oil cooling for the most demanding engines - Mishimoto - Audi BMW Volkswagen MINI

Serious engine oil cooling for the most demanding engines affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mishimoto - Corporate Logo
ES#:
2855412
Mfg#:
MM0C-19
In Stock
$218.99

This product was last offered at the strikethrough price on
05-06-2026

$196.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Cooling System Refresh Kit - Level 3

ES#2739949 - 11537558522KT2 - ECS Cooling System Refresh Kit - Level 3 - Everything you need to totally service your cooling system, including a radiator and belt service. Now includes ECS Billet Aluminum Radiator Drain Plug! - Assembled By ECS - BMW

Everything you need to totally service your cooling system, including a radiator and belt service. Now includes ECS Billet Aluminum Radiator Drain Plug! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with manual transmission only

Brand:
Assembled By ECS - Corporate Logo
ES#:
2739949
Mfg#:
11537558522KT2
Back Ordered
Auto Notify
ON SALE! SAVE 19%
$1110.99

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

$903.13 USD
This product is lifetime replacement eligible Partial Replacement

Universal Oil Cooler Black - 10 Row

ES#2764962 - MM0C10BK - Universal Oil Cooler Black - 10 Row - Serious engine oil cooling for the most demanding engines - Mishimoto - Audi BMW Volkswagen MINI

Serious engine oil cooling for the most demanding engines affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mishimoto - Corporate Logo
ES#:
2764962
Mfg#:
MM0C10BK
In Stock
$126.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Cooling System Refresh Kit - Level 2

ES#2597712 - 11537558522KT - ECS Cooling System Refresh Kit - Level 2 - A more advanced refresh kit - with primary cooling system hoses and accessory belt - Assembled By ECS - BMW

A more advanced refresh kit - with primary cooling system hoses and accessory belt affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with manual transmission only

Brand:
Assembled By ECS - Corporate Logo
ES#:
2597712
Mfg#:
11537558522KT
Back Ordered
Auto Notify
ON SALE! SAVE 19%
$830.99

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

$671.17 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Universal Oil Cooler - 19 Row, with Thermostat

ES#2764437 - MM0CULT - Universal Oil Cooler - 19 Row, with Thermostat - Serious engine oil cooling for the most demanding engines - Mishimoto - Audi BMW Volkswagen MINI

Serious engine oil cooling for the most demanding engines affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For custom applications only. Not a direct bolt on.

Brand:
Mishimoto - Corporate Logo
ES#:
2764437
Mfg#:
MM0CULT
In Stock
$599.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mishimoto Liquid Chill Radiator Coolant Additive - 4oz

ES#2764643 - MMRALC - Mishimoto Liquid Chill Radiator Coolant Additive - 4oz - Pairs with all types of coolant to increase heat transfer and decrease engine temps. - Mishimoto - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Pairs with all types of coolant to increase heat transfer and decrease engine temps. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mishimoto - Corporate Logo
ES#:
2764643
Mfg#:
MMRALC
Ships in 3 Business Days
$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

N55 Performance Silicone Radiator Hoses

ES#4920922 - 018739LA01 - N55 Performance Silicone Radiator Hoses - Retains OEM fitment with superior looks and durability. Reuse your factory connectors for easy installation! - ECS - BMW

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

Brand:
ECS - Corporate Logo
ES#:
4920922
Mfg#:
018739LA01
In Stock
ON SALE! SAVE 25%
$120.99

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

$90.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Purple Ice - 12oz

ES#2793046 - 01600 - Purple Ice - 12oz - High performance coolant conditioner - Royal Purple - Audi BMW Volkswagen Mercedes Benz MINI Porsche

High performance coolant conditioner affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Royal Purple - Corporate Logo
ES#:
2793046
Mfg#:
01600
Ships in 5 Business Days
$12.99 USD
Free Shipping
on orders $49 and up

Universal Oil Cooler - 10 Row

ES#2764105 - MM0C10 - Universal Oil Cooler - 10 Row - Serious engine oil cooling for the most demanding engines - Mishimoto - Audi BMW Volkswagen MINI

Serious engine oil cooling for the most demanding engines affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For custom applications only. Not a direct bolt on.

Brand:
Mishimoto - Corporate Logo
ES#:
2764105
Mfg#:
MM0C10
In Stock
$126.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

FTP Thermostat cover kit

ES#3617983 - sg84006-cT - FTP Thermostat cover kit - A simple way to dress up your engine bay - FTP Motorsport - BMW

A simple way to dress up your engine bay affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
FTP Motorsport - Corporate Logo
ES#:
3617983
Mfg#:
SG84006-CT
Ships on Aug 27, 2026
$50.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Cooling Parts

Upgrade your cooling system with a bigger, more efficient, radiator, electric fan conversion, water pump, lower-temperature thermostat, and cooling system additives to combat the enemy of performance.

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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