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BMW M3 Cooling System Service & Maintenance Parts

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Cooling System Refresh Kit - Level 1

ES#3981213 - ECSe361153-3KT - Cooling System Refresh Kit - Level 1 - Stop your cooling problems before they start - featuring a Stewart High Performance Water Pump water pump and an aluminum thermostat housing - Assembled By ECS - BMW

Stop your cooling problems before they start - featuring a Stewart High Performance Water Pump water pump and an aluminum thermostat housing 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#:
3981213
Mfg#:
ECSE361153-3KT
Ships on Aug 10, 2026
Auto Notify
ON SALE!
$400.99

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

$381.60 USD
Free Shipping
on orders $49 and up
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
Ships on Nov 24, 2026
Auto Notify
ON SALE!
$1591.99

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

$1554.34 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

SuperCool Performance Coolant - Pre-Mixed - 1 Gallon

ES#4338527 - 81215 - SuperCool Performance Coolant - Pre-Mixed - 1 Gallon - Redline's state of the art coolant offering premium performance and protection. Fortified with Waterwetter! - Redline - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Redline's state of the art coolant offering premium performance and protection. Fortified with Waterwetter! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Redline - Corporate Logo
ES#:
4338527
Mfg#:
81215
In Stock
$54.99 USD
Free Shipping
on orders $49 and up

Thermostat Replacement Kit

ES#2718468 - 11537836155KT - Thermostat Replacement Kit - Includes thermostat with o-ring, and coolant - Genuine BMW - BMW

Includes thermostat with o-ring, and coolant affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2718468
Mfg#:
11537836155KT
Ships in 1-2 days
$176.99

This product was last offered at the strikethrough price on
06-03-2026

$174.99 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 3 Business Days
$1190.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Radiator Relief Flush

ES#2608077 - 040202 - Radiator Relief Flush - Concentrated cleansing agent that effectively cleans your cooling system! - DEI - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Concentrated cleansing agent that effectively cleans your cooling system! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
DEI - Corporate Logo
ES#:
2608077
Mfg#:
040202
In Stock
$13.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime 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
Ships on Nov 24, 2026
ON SALE! SAVE 17%
$1155.99

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

$954.02 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Radiator Stop-Leak - 250mL

ES#3514566 - 20132 - Radiator Stop-Leak - 250mL - Put a stop to that coolant leak! - Liqui-Moly - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Put a stop to that coolant leak! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Liqui-Moly - Corporate Logo
ES#:
3514566
Mfg#:
20132
In Stock
28% off MSRP

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

$15.95

This product was last offered at the strikethrough price on
06-03-2026

$11.49 USD
Free Shipping
on orders $49 and up

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
Ships on Oct 19, 2026
Auto Notify
ON SALE!
$819.91 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Cooling Maintenance Kit - Level 3

ES#2636027 - 61311384739KT4 - Cooling Maintenance Kit - Level 3 - The ultimate cooling refresh kit - featuring a Geba water pump with metal impeller - Assembled By ECS - BMW

The ultimate cooling refresh kit - featuring a Geba water pump with metal impeller affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with production date up to 06/1995

Brand:
Assembled By ECS - Corporate Logo
ES#:
2636027
Mfg#:
61311384739KT4
Ships on Aug 10, 2026
Auto Notify
ON SALE! SAVE 15%
$921.99

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

$782.52 USD
Free Shipping
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
Ships on Nov 24, 2026
ON SALE! SAVE 19%
$995.99

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

$804.29 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 2

ES#2777069 - 11517839062KT3 - Cooling System Refresh Kit - Level 2 - Service your drive belt while servicing your cooling system - Assembled By ECS - BMW

Service your drive belt while servicing your cooling system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with production date up to 04/2008

Brand:
Assembled By ECS - Corporate Logo
ES#:
2777069
Mfg#:
11517839062KT3
Ships in 5 Business Days
$795.99

This product was last offered at the strikethrough price on
02-27-2026

$745.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Cooling Maintenance Kit - Level 3

ES#2598404 - 11517527910KT - Cooling Maintenance Kit - Level 3 - The ultimate cooling refresh kit - featuring a Geba water pump with metal impeller - Assembled By ECS - BMW

The <font color='red'> ultimate</font> cooling refresh kit - featuring a Geba water pump with metal impeller affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with production date from 06/1995

Brand:
Assembled By ECS - Corporate Logo
ES#:
2598404
Mfg#:
11517527910KT
Ships on Aug 10, 2026
Auto Notify
ON SALE!
$743.99

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

$709.80 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Thermostat Replacement Kit

ES#2718469 - 11537836155KT1 - Thermostat Replacement Kit - Includes thermostat with o-ring, and coolant - Assembled By ECS - BMW

Includes thermostat with o-ring, and coolant 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#:
2718469
Mfg#:
11537836155KT1
In Stock
ON SALE!
$104.99

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

$99.87 USD
Free Shipping
This product is lifetime replacement eligible Partial 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 4 Business Days
$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling System Refresh Kit - Level 1

ES#2777070 - 11517839062KT4 - Cooling System Refresh Kit - Level 1 - An entry level cooling refresh kit - Assembled By ECS - BMW

An entry level cooling refresh kit 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#:
2777070
Mfg#:
11517839062KT4
Ships in 1-2 days
$632.99

This product was last offered at the strikethrough price on
02-27-2026

$565.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

More About Cooling System Service & Maintenance Parts

From individual cooling system parts to full cooling system refresh kits and cooling system upgrades, we have it all right here so you can keep your engine temperature in check or improve cooling system performance to meet the demands you place on your car.

Let us help you find the parts that fit your BMW

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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