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Volkswagen MK4 Engine Cooling Parts

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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!

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

Expansion Tank Cap

ES#10026 - 3B0121321 - Expansion Tank Cap - Keep proper pressure in your coolant system - Vaico - Audi Volkswagen Porsche

Keep proper pressure in your coolant system We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
10026
Mfg#:
3B0121321
In Stock
ON SALE!
$15.99

This product was last offered at the strikethrough price on
07-14-2026

$15.51 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump

ES#1084 - 038121011A - Water Pump - Featuring a metal impeller, includes O-Ring - Geba - Volkswagen

Featuring a metal impeller, includes O-Ring For vehicles with ALH engine code only

Brand:
Geba - Corporate Logo
ES#:
1084
Mfg#:
038121011A
In Stock
$60.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Fan Control Unit

ES#310611 - 1J0919506K - Auxiliary Fan Control Unit - 1 large 4 pin connector and 1 small 14 pin connector - Genuine Volkswagen Audi - Audi Volkswagen

1 large 4 pin connector and 1 small 14 pin connector

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
310611
Mfg#:
1J0919506K
Ships in 2 Business Days
ON SALE!
$326.99

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

$301.73 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Spring Band Clamp - Priced Each

ES#516227 - N90686902 - Spring Band Clamp - Priced Each - Ensure a leak free installation. 23x12 - Genuine Volkswagen Audi - Audi Volkswagen

Ensure a leak free installation. 23x12 Secures the lower expansion tank hose

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
516227
Mfg#:
N90686902
In Stock
$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi R8 Expansion Tank Cap

ES#2149010 - 420121321 - Audi R8 Expansion Tank Cap - Keep proper pressure on your coolant, replaces any modern blue or black cooling cap - Genuine Volkswagen Audi - Audi Volkswagen Porsche

Keep proper pressure on your coolant, replaces any modern blue or black cooling cap

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2149010
Mfg#:
420121321
Ships in 2 Business Days
9% off MSRP

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

$326.99

This product was last offered at the strikethrough price on
07-28-2026

$298.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Banjo Bolt - Priced Each

ES#4810627 - 06A145541J - Banjo Bolt - Priced Each - Hollow bolt that allows fluid to pass through. M14x26 - Rein - Audi Volkswagen

Hollow bolt that allows fluid to pass through. M14x26 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Used to secure turbocharger coolant supply line

Brand:
Rein - Corporate Logo
ES#:
4810627
Mfg#:
06A145541J
In Stock at Vendor
$20.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heater Core

ES#259181 - 1J1819031B - Heater Core - Stop coolant loss and cure a fogged windshield - Genuine Volkswagen Audi - Audi Volkswagen

Stop coolant loss and cure a fogged windshield

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
259181
Mfg#:
1J1819031B
Ships in 1 day
7% off MSRP

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

$311.99

This product was last offered at the strikethrough price on
07-28-2026

$290.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime 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! 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
29% off MSRP

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

$16.99

This product was last offered at the strikethrough price on
07-28-2026

$11.99 USD
Free Shipping
on orders $49 and up

Thermostat

ES#269568 - 022121113 - Thermostat - Helps your engine regulate its temperature - Genuine Volkswagen Audi - Audi Volkswagen

Helps your engine regulate its temperature

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
269568
Mfg#:
022121113
In Stock
ON SALE! SAVE 11%
$118.99

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

$105.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Replacement Kit - Complete Assembly

ES#2575924 - 1J01000-1 - Expansion Tank Replacement Kit - Complete Assembly - Clean up your engine bay or replace your cracked unit with a new coolant expansion tank replacement kit. - Assembled By ECS - Audi Volkswagen

Clean up your engine bay or replace your cracked unit with a new coolant expansion tank replacement kit. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2575924
Mfg#:
1J01000-1
In Stock
ON SALE! SAVE 18%
$29.99

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

$24.70 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Oil Filter Adapter

ES#269538 - 022115403R - Oil Filter Adapter - With an integrated oil separator - Genuine Volkswagen Audi - Audi Volkswagen

With an integrated oil separator

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
269538
Mfg#:
022115403R
Ships in 1 day
7% off MSRP

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

$298.99

This product was last offered at the strikethrough price on
07-28-2026

$278.99 USD
Free Shipping

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 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

$207.04 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

More About Engine Cooling Parts

Optimize your engine cooling system performance and heater output with quality drive belts, coolant hoses, cooling system parts, and approved coolant fluids from ECS Tuning. Head off expensive repairs and untimely breakdowns with regularly scheduled cooling system inspection and maintenance.

Let us help you find the parts that fit your Volkswagen

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