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BMW 335i Cooling System Refresh Kits

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N20/N52/N54 Heavy Duty Aluminum Expansion Tank Kit

ES#4635669 - 008378LA02 - N20/N52/N54 Heavy Duty Aluminum Expansion Tank Kit - As expansion tanks age, they are prone to cracking or even exploding. Replace your factory plastic coolant reservoir with a Turner Heavy Duty aluminum tank for durability and piece of mind! - Turner Motorsport - BMW
ECS Tuning recommends this product.

As expansion tanks age, they are prone to cracking or even exploding. Replace your factory plastic coolant reservoir with a Turner Heavy Duty aluminum tank for durability and piece of mind! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4635669
Mfg#:
008378LA02
In Stock
ON SALE! SAVE 20%
$469.99

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

$375.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump And Thermostat

ES#4820923 - 11517588885KT - Water Pump And Thermostat - Featuring Hamburg Technic Coolant Pump & Thermostat with hardware - Hamburg Tech - BMW

Featuring Hamburg Technic Coolant Pump & Thermostat with hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
4820923
Mfg#:
11517588885KT
In Stock
$459.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Cooling System Refresh Kit - Level 1

ES#3170920 - 11517588885KT3 - ECS Cooling System Refresh Kit - Level 1 - An entry level cooling refresh kit - with high quality aftermarket components - Assembled By ECS - BMW

An entry level cooling refresh kit - with high quality aftermarket components affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with automatic transmission only

Brand:
Assembled By ECS - Corporate Logo
ES#:
3170920
Mfg#:
11517588885KT3
Ships on Jul 7, 2026
Auto Notify
ON SALE! SAVE 20%
$747.99

This product was last offered at the strikethrough price on
01-03-2026

$598.49 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

ECS Cooling System Refresh Kit - Level 1

ES#2597785 - 11517588885RKT - ECS Cooling System Refresh Kit - Level 1 - An entry level cooling refresh kit - with OEM & high quality aftermarket components - Assembled By ECS - BMW

An entry level cooling refresh kit - with OEM & high quality aftermarket components 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#:
2597785
Mfg#:
11517588885RKT
In Stock
ON SALE! SAVE 25%
$710.99

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

$536.23 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

ECS Cooling System Refresh Kit - Level 3

ES#2739954 - 11537549476RKT3 - ECS Cooling System Refresh Kit - Level 3 - Everything you need to totally service your cooling system, including a radiator and belt service - Genuine BMW - BMW

Everything you need to totally service your cooling system, including a radiator and belt service affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with manual transmission only

Brand:
Genuine BMW - Corporate Logo
ES#:
2739954
Mfg#:
11537549476RKT3
Ships in 1-2 days
$2593.99

This product was last offered at the strikethrough price on
06-02-2026

$2591.99 USD
This product is lifetime replacement eligible Partial Replacement

ECS Cooling System Refresh Kit - Level 1

ES#2597786 - 11537549476RKT1 - ECS Cooling System Refresh Kit - Level 1 - An entry level cooling refresh kit - with high quality OEM & aftermarket components - Assembled By ECS - BMW

An entry level cooling refresh kit - with high quality OEM & aftermarket components 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#:
2597786
Mfg#:
11537549476RKT1
In Stock
ON SALE! SAVE 24%
$704.77

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

$532.38 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

ECS Cooling System Refresh Kit - Level 2

ES#2597740 - 17117547059KT - ECS Cooling System Refresh Kit - Level 2 - A more advanced refresh kit - with with all cooling system hoses and accessory belt - Genuine BMW - BMW

A more advanced refresh kit - with with all cooling system hoses and accessory belt affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with automatic transmission only

Brand:
Genuine BMW - Corporate Logo
ES#:
2597740
Mfg#:
17117547059KT
Ships in 1-2 days
$1782.99

This product was last offered at the strikethrough price on
06-02-2026

$1780.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

ECS Cooling System Refresh Kit - Level 1

ES#2682141 - 11517632426KT - ECS Cooling System Refresh Kit - Level 1 - Stop your cooling problems before they start using all OEM parts. - Genuine BMW - BMW

Stop your cooling problems before they start using all OEM parts. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with manual transmission

Brand:
Genuine BMW - Corporate Logo
ES#:
2682141
Mfg#:
11517632426KT
Ships in 1-2 days
$1534.99

This product was last offered at the strikethrough price on
06-02-2026

$1532.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

ECS Cooling System Refresh Kit - Level 1

ES#2090729 - ECSE90N54CRKT - ECS Cooling System Refresh Kit - Level 1 - An entry level cooling refresh kit - with OEM components - Genuine BMW - BMW

An entry level cooling refresh kit - with OEM components affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with automatic transmission only

Brand:
Genuine BMW - Corporate Logo
ES#:
2090729
Mfg#:
ECSE90N54CRKT
Ships in 1-2 days
$1518.99

This product was last offered at the strikethrough price on
03-30-2026

$1514.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

ECS Cooling System Refresh Kit - Level 1

ES#2713447 - 11517588885KT1 - ECS Cooling System Refresh Kit - Level 1 - An entry level cooling refresh kit - with OEM components - Genuine BMW - BMW

An entry level cooling refresh kit - with OEM components affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with automatic transmission only

Brand:
Genuine BMW - Corporate Logo
ES#:
2713447
Mfg#:
11517588885KT1
Ships in 1-2 days
$1509.99

This product was last offered at the strikethrough price on
06-02-2026

$1505.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Performance Cooling System Refresh Kit - Level 1

ES#4883162 - 11517588885KT4 - Performance Cooling System Refresh Kit - Level 1 - An entry-level service kit featuring high-performance cooling system components. Eliminate common failure points and increase cooling system efficiency! - Assembled By ECS - BMW

An entry-level service kit featuring high-performance cooling system components. Eliminate common failure points and increase cooling system efficiency! 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#:
4883162
Mfg#:
11517588885KT4
Ships on Aug 14, 2026
Auto Notify
ON SALE!
$1433.99

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

$1299.51 USD
This product is lifetime replacement eligible Partial Replacement

ECS Cooling System Refresh Kit - Level 1

ES#3170921 - 11517632426KT9 - ECS Cooling System Refresh Kit - Level 1 - An entry level cooling refresh kit - with high quality aftermarket components - Assembled By ECS - BMW

An entry level cooling refresh kit - with high quality aftermarket components affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with manual transmission

Brand:
Assembled By ECS - Corporate Logo
ES#:
3170921
Mfg#:
11517632426KT9
Ships on Jul 7, 2026
Auto Notify
ON SALE! SAVE 10%
$839.99

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

$757.93 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 1

ES#4845714 - f30335csrl1KT - Cooling System Refresh Kit - Level 1 - Contains the components that commonly fail in your cooling system - Assembled By ECS - BMW

Contains the components that commonly fail in your cooling system 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#:
4845714
Mfg#:
F30335CSRL1KT
Ships on Jun 30, 2026
Auto Notify
ON SALE! SAVE 27%
$885.99

This product was last offered at the strikethrough price on
01-16-2026

$650.47 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 0

ES#4849738 - f3xn55csrl0KT - Cooling System Refresh Kit - Level 0 - Addresses the three most common cooling issues for your BMW! - Assembled By ECS - BMW

Addresses the three most common cooling issues for your BMW! 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#:
4849738
Mfg#:
F3XN55CSRL0KT
Ships in 1-2 days
ON SALE! SAVE 18%
$110.99

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

$90.90 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

ECS Cooling System Refresh Kit - Level 1

ES#2090728 - ECSE90N54CRKT - ECS Cooling System Refresh Kit - Level 1 - An entry level cooling refresh kit - with OEM components - Genuine BMW - BMW

An entry level cooling refresh kit - with OEM components affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with manual transmission only

Brand:
Genuine BMW - Corporate Logo
ES#:
2090728
Mfg#:
ECSE90N54CRKT
Ships in 1-2 days
$1558.99

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

$1555.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

ECS Cooling System Refresh Kit - Level 2

ES#2597737 - 11537549476RKT - ECS Cooling System Refresh Kit - Level 2 - A more advanced refresh kit - with with all cooling system hoses and accessory belt - Genuine BMW - BMW

A more advanced refresh kit - with with all cooling system hoses and accessory belt affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with manual transmission only

Brand:
Genuine BMW - Corporate Logo
ES#:
2597737
Mfg#:
11537549476RKT
Ships in 1-2 days
$1823.99

This product was last offered at the strikethrough price on
06-02-2026

$1821.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

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