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Volkswagen MK4 Cooling System Service & Maintenance Parts

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Lock Carrier Tool Set - M8

ES#3522567 - 004164SCH01KT - Lock Carrier Tool Set - M8 - Extended lock carrier bolts to make extra room without removing the entire front end. - Schwaben - Audi Volkswagen MINI
ECS Tuning recommends this product.

Extended lock carrier bolts to make extra room without removing the entire front end. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Schwaben - Corporate Logo
ES#:
3522567
Mfg#:
004164SCH01KT
Ships on Jun 23, 2026
Auto Notify
ON SALE! SAVE 30%
$45.99

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

$32.19 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

G13 Coolant / Antifreeze - 1.5 Liter

ES#2872897 - G013A8JM1 - G13 Coolant / Antifreeze - 1.5 Liter - Lilac OE VW/Audi specification concentrate lifetime coolant - Febi - Audi Volkswagen

Lilac OE VW/Audi specification concentrate lifetime coolant affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2872897
Mfg#:
G013A8JM1
In Stock
$20.61

This product was last offered at the strikethrough price on
04-13-2026

$16.99 USD
Free Shipping
on orders $49 and up

SuperCool Performance Coolant - Concentrate - 1 Gallon

ES#4338528 - 81205 - SuperCool Performance Coolant - Concentrate - 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#:
4338528
Mfg#:
81205
In Stock
$68.99 USD
Free Shipping
on orders $49 and up

Zerex Coolant / Antifreeze - Pink G40 (Prediluted) 1 Gallon

ES#4906329 - 861399 - Zerex Coolant / Antifreeze - Pink G40 (Prediluted) 1 Gallon - MBZ Approval: 325.5 / 325.6 - Zerex - Audi Volkswagen Mercedes Benz Porsche

MBZ Approval: 325.5 / 325.6 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Zerex - Corporate Logo
ES#:
4906329
Mfg#:
861399
In Stock at Vendor
$28.99

This product was last offered at the strikethrough price on
05-07-2026

$27.99 USD
Free Shipping
on orders $49 and up

Cooling System Flush Kit

ES#2784773 - CO0LANTFLUSHKT2 - Cooling System Flush Kit - Keep your cooling system working at its best by keeping it clean and free of rust and scale deposits. Includes new expansion tank cap, flush treatment & G13 coolant. - Assembled By ECS - Audi Volkswagen

Keep your cooling system working at its best by keeping it clean and free of rust and scale deposits. Includes new expansion tank cap, flush treatment & G13 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#:
2784773
Mfg#:
CO0LANTFLUSHKT2
In Stock
ON SALE! SAVE 11%
$89.99

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

$80.05 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

G12++ / G40 Coolant Concentrate - 1 Gallon (3.78 Liters)

ES#3420837 - 00004330575 - G12++ / G40 Coolant Concentrate - 1 Gallon (3.78 Liters) - Pink ZEREX G-40 formula, comes in a concentrate, requires dilution with distilled water. - Zerex - Audi Volkswagen Mercedes Benz Porsche

Pink ZEREX G-40 formula, comes in a concentrate, requires dilution with distilled water. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Zerex - Corporate Logo
ES#:
3420837
Mfg#:
00004330575
Back Ordered
$40.99

This product was last offered at the strikethrough price on
03-29-2026

$29.99 USD
Free Shipping
on orders $49 and up

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

Build-Your-Own MK4 12v VR6 Performance Cooling System Refresh Kit

ES#4005773 - 018163ECS04 - Build-Your-Own MK4 12v VR6 Performance Cooling System Refresh Kit - Upgrade your VR6's cooling system with select performance upgrades from ECS Tuning! - Assembled By ECS - Volkswagen

Upgrade your VR6's cooling system with select performance upgrades from ECS Tuning! 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#:
4005773
Mfg#:
018163ECS04
Back Ordered
ON SALE!
Starting at $279.99 USD
Customize
Free Shipping
This product is lifetime replacement eligible Partial Replacement

ECS Cooling System Refresh Kit - Performance

ES#2586603 - MKIVGLICOOLKT2 - ECS Cooling System Refresh Kit - Performance - This comprehensive kit eliminates weak spots in your cooling system and replaces them with performance options. Black hoses - Assembled By ECS - Volkswagen

This comprehensive kit eliminates weak spots in your cooling system and replaces them with performance options. Black hoses affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with AWW or AWD engine code only. Also fits vehicles with AWP engine code with manual transmission.

Brand:
Assembled By ECS - Corporate Logo
ES#:
2586603
Mfg#:
MKIVGLICOOLKT2
Back Ordered
$1000.05 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

Build-Your-Own MK4 24v VR6 Performance Cooling System Refresh Kit

ES#4005786 - 018163ECS05 - Build-Your-Own MK4 24v VR6 Performance Cooling System Refresh Kit - Upgrade your VR6's cooling system with select performance upgrades from ECS Tuning! - Assembled By ECS - Volkswagen

Upgrade your VR6's cooling system with select performance upgrades from ECS Tuning! 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#:
4005786
Mfg#:
018163ECS05
Back Ordered
ON SALE!
Starting at $279.99 USD
Customize
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Build-Your-Own MK4 1.8T Performance Cooling System Refresh Kit

ES#4005762 - 018163ECS03 - Build-Your-Own MK4 1.8T Performance Cooling System Refresh Kit - Upgrade your 1.8T's cooling system with select performance upgrades from ECS Tuning! - Assembled By ECS - Volkswagen

Upgrade your 1.8T's cooling system with select performance upgrades from ECS Tuning! 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#:
4005762
Mfg#:
018163ECS03
Back Ordered
ON SALE!
Starting at $279.99 USD
Customize
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Thermostat Replacement Kit

ES#2765880 - G013A8J1GKT1 - Thermostat Replacement Kit - Maintain proper operating temperature with a new thermostat, housings and hardware - Assembled By ECS - Volkswagen

Maintain proper operating temperature with a new thermostat, housings and hardware 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#:
2765880
Mfg#:
G013A8J1GKT1
In Stock
ON SALE!
$219.99

This product was last offered at the strikethrough price on
04-03-2026

$205.31 USD
Free Shipping
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

Thermostat Replacement Kit

ES#2954030 - 038121121KT - Thermostat Replacement Kit - Maintain proper operating temperature with a new thermostat, housing and hardware - Genuine Volkswagen Audi - Volkswagen

Maintain proper operating temperature with a new thermostat, housing and hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with ALH engine code only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2954030
Mfg#:
038121121KT
In Stock
$109.99

This product was last offered at the strikethrough price on
02-24-2026

$103.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cooling System Refresh Kit

ES#2763410 - 1J0121253ADKT4 - Cooling System Refresh Kit - The most common failure points in your cars cooling system - Assembled By ECS - Volkswagen

The most common failure points in your cars cooling system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with AWW or AWD engine code only. Also fits vehicles with AWP engine code with manual transmission.

Brand:
Assembled By ECS - Corporate Logo
ES#:
2763410
Mfg#:
1J0121253ADKT4
Ships on Jun 19, 2026
ON SALE!
$618.23

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

$601.40 USD
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 Volkswagen

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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