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BMW E46 M3 S54 3.2L

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BMW E46 M3 S54 3.2L Engine Cooling Refresh Kits

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E46 M3 Heavy Duty Aluminum Expansion Tank Kit

ES#4876067 - 008682LA02 - E46 M3 Heavy Duty Aluminum Expansion Tank Kit - The last expansion tank you'll ever need! Upgrade to durable aluminum construction and leave failure-prone plastic behind. - Turner Motorsport - BMW
ECS Tuning recommends this product.

The last expansion tank you'll ever need! Upgrade to durable aluminum construction and leave failure-prone plastic behind. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4876067
Mfg#:
008682LA02
In Stock
ON SALE! SAVE 20%
$434.99

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

$347.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Cooling System Refresh Kit - Level 3

ES#4908058 - 008682LA02-RF3KT - Performance Cooling System Refresh Kit - Level 3 - An all-inclusive service and upgrade kit, featuring high-performance components for increased cooling capacity! - Assembled By ECS - BMW

An all-inclusive service and upgrade kit, featuring high-performance components for increased cooling capacity! 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#:
4908058
Mfg#:
008682LA02-RF3KT
Back Ordered
Auto Notify
ON SALE!
$1668.43

This product was last offered at the strikethrough price on
01-28-2026

$1624.01 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Essentials Bundle - Cooling System

ES#5435258 - MMB-E46-001 - Essentials Bundle - Cooling System - An all-in-one cooling solution designed to replace the most common failure points in the E46 chassis. - Mishimoto - BMW

An all-in-one cooling solution designed to replace the most common failure points in the E46 chassis. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mishimoto - Corporate Logo
ES#:
5435258
Mfg#:
MMB-E46-001
Ships in 3 Business Days
$1108.99 USD

Cooling System Refresh Kit - Level 3

ES#2497338 - 17127510952KT3 - Cooling System Refresh Kit - Level 3 - The ultimate kit to eliminate your cooling system issues and get you back on the road worry free - featuring OEM contents - Genuine BMW - BMW

The ultimate kit to eliminate your cooling system issues and get you back on the road worry free - featuring OEM contents affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2497338
Mfg#:
17127510952KT3
Ships on Dec 24, 2026
$2886.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 3

ES#4666879 - 17127510952KT12 - Cooling System Refresh Kit - Level 3 - Assembled By ECS - 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#:
4666879
Mfg#:
17127510952KT12
Back Ordered
Auto Notify
$1871.99

This product was last offered at the strikethrough price on
06-25-2026

$1832.99 USD
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 3

ES#2707744 - 17127510952KT7 - Cooling System Refresh Kit - Level 3 - The ultimate kit to eliminate your cooling system issues and get you back on the road worry free - featuring high quality aftermarket contents - Assembled By ECS - BMW

The ultimate kit to eliminate your cooling system issues and get you back on the road worry free - featuring high quality aftermarket contents 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#:
2707744
Mfg#:
17127510952KT7
Back Ordered
Auto Notify
ON SALE!
$1620.99

This product was last offered at the strikethrough price on
06-25-2026

$1583.50 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 1

ES#2497335 - 17127510952KT - Cooling System Refresh Kit - Level 1 - Contains the components that commonly fail in your cooling system - featuring OEM contents - Genuine BMW - BMW

Contains the components that commonly fail in your cooling system - featuring OEM contents affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2497335
Mfg#:
17127510952KT
Ships in 2 Business Days
$1190.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Performance Cooling System Refresh Kit - Level 2

ES#4876926 - 008682LA02-RF2KT - Performance Cooling System Refresh Kit - Level 2 - A comprehensive service kit featuring high-performance cooling system components. Eliminate common failure points and increase cooling system efficiency! - Assembled By ECS - BMW

A comprehensive 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#:
4876926
Mfg#:
008682LA02-RF2KT
Back Ordered
Auto Notify
ON SALE!
$1068.99

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

$1019.54 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Performance Cooling System Refresh Kit - Level 1

ES#4876924 - 008682LA02-RF1KT - 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#:
4876924
Mfg#:
008682LA02-RF1KT
In Stock
ON SALE!
$903.99

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

$872.92 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 2

ES#2707752 - 17127510952KT9 - Cooling System Refresh Kit - Level 2 - A more advanced kit that includes belt service components and a ECS aluminum pulley - featuring high quality aftermarket contents - Assembled By ECS - BMW

A more advanced kit that includes belt service components and a ECS aluminum pulley - featuring high quality aftermarket contents 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#:
2707752
Mfg#:
17127510952KT9
Back Ordered
Auto Notify
ON SALE!
$819.99

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

$780.53 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 1

ES#2497359 - 17127510952KT4 - Cooling System Refresh Kit - Level 1 - Contains the components that commonly fail in your cooling system - featuring high quality aftermarket contents - Assembled By ECS - BMW

Contains the components that commonly fail in your cooling system - featuring high quality aftermarket contents 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#:
2497359
Mfg#:
17127510952KT4
In Stock
ON SALE!
$623.99

This product was last offered at the strikethrough price on
06-26-2026

$612.02 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Water Pump Installation Hardware Kit

Keep your cooling system operating at peak performance with this Genuine BMW water pump o-ring and mounting bolt kit. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
5481473
Mfg#:
0071199KT
In Stock
$7.94 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling System Refresh Kit - Level 2

ES#2497337 - 17127510952KT2 - Cooling System Refresh Kit - Level 2 - A more advanced kit that includes belt service components - featuring OEM contents - Genuine BMW - BMW

A more advanced kit that includes belt service components - featuring OEM contents affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2497337
Mfg#:
17127510952KT2
Ships in 2 Business Days
$1528.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 3

ES#4004069 - 17127510952KT15 - Cooling System Refresh Kit - Level 3 - The ultimate kit to eliminate your cooling system issues and get you back on the road worry free - featuring OEM contents - Genuine BMW - BMW

The ultimate kit to eliminate your cooling system issues and get you back on the road worry free - featuring OEM contents affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
4004069
Mfg#:
17127510952KT15
Ships on Dec 24, 2026
$2823.99 USD
This product is lifetime replacement eligible Partial Replacement

More About Engine Cooling Refresh Kits

Stay ahead of cooling issues by servicing your cooling system with our curated cooling system service kits that include everything you need to bring your cooling system back up to snuff.

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