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Volkswagen MK4 Engine Cooling Parts

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Expansion Tank Screw - Priced Each

ES#470958 - N90846602 - Expansion Tank Screw - Priced Each - Install new hardware with your new parts, 2 Required. 5x20 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts, 2 Required. 5x20 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
470958
Mfg#:
N90846602
In Stock
25% off MSRP

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

$3.99

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

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sealing O-Ring - Priced Each

ES#2535131 - N90316802 - Sealing O-Ring - Priced Each - Seal for most clip-in cooling sensors/senders. M19.6x3.6mm - URO - Audi Volkswagen

Seal for most clip-in cooling sensors/senders. M19.6x3.6mm affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2535131
Mfg#:
N90316802
In Stock
$1.26 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler O-Ring

ES#2718036 - 038117070A - Oil Cooler O-Ring - Seals the connection between the oil cooler and the filter adapter. 59x5 - Elring - Audi Volkswagen

Seals the connection between the oil cooler and the filter adapter. 59x5 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
2718036
Mfg#:
038117070A
In Stock
$6.03

This product was last offered at the strikethrough price on
01-07-2026

$1.67 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Cooling System Refresh Kit

ES#2581295 - MKIVGLICOOLKT - ECS 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#:
2581295
Mfg#:
MKIVGLICOOLKT
Ships in 1 Business Day
ON SALE!
$289.65 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Thermostat Housing

ES#2500836 - 06A121121C - Thermostat Housing - Common point of failure for the cooling system. Does not include O-Ring. - URO - Audi Volkswagen

Common point of failure for the cooling system. Does not include O-Ring. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2500836
Mfg#:
06A121121C
In Stock
$6.41 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Filter Fitting

ES#257105 - 028115721 - Oil Filter Fitting - Fitting for oil filter adapter and oil cooler - Genuine Volkswagen Audi - Audi Volkswagen

Fitting for oil filter adapter and oil cooler affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
257105
Mfg#:
028115721
Ships in 2 Business Days
11% off MSRP

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

$53.99

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

$47.99 USD
Free Shipping
on orders $49 and up

Coolant Expansion Tank

ES#3476100 - 1J0121407F - Coolant Expansion Tank - Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank - Behr - Audi Volkswagen

Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Behr - Corporate Logo
ES#:
3476100
Mfg#:
1J0121407F
In Stock at Vendor
$33.99

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

$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Aluminum Thermostat Housing Kit

ES#3553465 - 462-121-vr-afpKT - Aluminum Thermostat Housing Kit - Replace your inferior plastic housings - iABED Industries - Volkswagen

Replace your inferior plastic housings affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
iABED Industries - Corporate Logo
ES#:
3553465
Mfg#:
462-121-VR-AFPKT
Back Ordered
Auto Notify
$286.99

This product was last offered at the strikethrough price on
04-16-2026

$285.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Replacement Kit - Complete Assembly

ES#2575928 - 1J01000-2 - Expansion Tank Replacement Kit - Complete Assembly - Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank replacement kit. - Genuine Volkswagen Audi - Audi Volkswagen

Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank replacement kit. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2575928
Mfg#:
1J01000-2
In Stock
$94.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler

ES#2772 - 068117021B - Oil Cooler - Common source of undiscoverable coolant leaks - Vemo - Audi Volkswagen

Common source of undiscoverable coolant leaks affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with ALH engine code only

Brand:
Vemo - Corporate Logo
ES#:
2772
Mfg#:
068117021B
In Stock at Vendor
$72.99

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

$70.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Seal

ES#280024 - 06B121687 - Seal - Install a new seal for a proper seal. 20.5x5.5 - Genuine Volkswagen Audi - Volkswagen

Install a new seal for a proper seal. 20.5x5.5 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with VIN from 9M-Y-085 001 only, split is in the 2000 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280024
Mfg#:
06B121687
Ships in 2 Business Days
14% off MSRP

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

$6.99

This product was last offered at the strikethrough price on
05-31-2026

$6.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange

ES#275136 - 038121133A - Coolant Flange - Located on the left side of the cylinder head - Genuine Volkswagen Audi - Volkswagen

Located on the left side of the cylinder head affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with manual transmission only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
275136
Mfg#:
038121133A
Special Order: No Guaranteed ETA
7% off MSRP

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

$300.99

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

$280.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Radiator Fan Shroud

ES#4361999 - 34-2301 - Radiator Fan Shroud - Allows you to run a 9" & 13" Spal slim fan setup - Fabless Manufacturing - Volkswagen

Allows you to run a 9" & 13" Spal slim fan setup affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Fabless Manufacturing - Corporate Logo
ES#:
4361999
Mfg#:
34-2301
Ships on Jun 29, 2026
$279.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Primary Fan Assembly - 345MM

ES#2814392 - 1J0959455S - Primary Fan Assembly - 345MM - Main fan responsible for pulling air through your radiator. - Hamburg Tech - Audi Volkswagen

Main fan responsible for pulling air through your radiator. 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#:
2814392
Mfg#:
1J0959455S
In Stock
$92.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing O-Ring

ES#268978 - 021121119A - Thermostat Housing O-Ring - O-Ring between thermostat housing and cylinder head - Genuine Volkswagen Audi - Audi Volkswagen

O-Ring between thermostat housing and cylinder head affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
268978
Mfg#:
021121119A
Ships in 1-2 days
35% off MSRP

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

$13.73

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

$8.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Aluminum Water Pipe Kit - Stage 3

ES#1892124 - VR624VTHKW1G - Aluminum Water Pipe Kit - Stage 3 - An Upgrade Over Stage 2 That Includes Thermostat and Coolant. Features ECS black aluminum water pipe. - Assembled By ECS - Volkswagen

An Upgrade Over Stage 2 That Includes Thermostat and Coolant. Features ECS black aluminum water pipe. 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#:
1892124
Mfg#:
VR624VTHKW1G
In Stock
ON SALE!
$292.99

This product was last offered at the strikethrough price on
01-24-2026

$272.90 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

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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