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Volkswagen MK4 Engine Cooling Parts

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Coolant Supply Pipe

ES#279290 - 06A121065AK - Coolant Supply Pipe - Located along top of the intake manifold - Genuine Volkswagen Audi - Audi Volkswagen

Located along top of the intake manifold For vehicles with manual transmission only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
279290
Mfg#:
06A121065AK
Ships in 1-2 days
7% off MSRP

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

$279.99

This product was last offered at the strikethrough price on
02-26-2026

$260.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler O-Ring

ES#2777 - 038117070 - Oil Cooler O-Ring - O-Ring between cover & oil cooler. 62.8mm - Victor Reinz - Volkswagen

O-Ring between cover & oil cooler. 62.8mm

Brand:
Victor Reinz - Corporate Logo
ES#:
2777
Mfg#:
038117070
In Stock
$4.07 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 87°C

ES#276208 - 044121113 - Thermostat - 87C - Keep your car running at the proper temperature. Does not include o-ring - Genuine Volkswagen Audi - Audi Volkswagen

Keep your car running at the proper temperature. Does not include o-ring

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
276208
Mfg#:
044121113
In Stock
ON SALE!
$67.99

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

$62.78 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Screw

ES#469563 - N90310301 - Expansion Tank Screw - Install new hardware with your new parts, 2 Required. 6.8x12.5 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts, 2 Required. 6.8x12.5

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
469563
Mfg#:
N90310301
In Stock
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning Water Pipe Kit - Stage 3

ES#2730490 - VR612VTHKWT2FKT - ECS Tuning Water Pipe Kit - Stage 3 - Includes everything in Stage 2 kit plus ECS billet aluminum water pipe in silver - Assembled By ECS - Volkswagen

Includes everything in Stage 2 kit plus ECS billet aluminum water pipe in silver 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2730490
Mfg#:
VR612VTHKWT2FKT
In Stock
ON SALE!
$264.99

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

$248.79 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Quick Disconnect Coupler

ES#251611 - 3B0122291B - Quick Disconnect Coupler - Push tab connector used in various places on the cooling system - Genuine Volkswagen Audi - Audi Volkswagen

Push tab connector used in various places on the cooling system

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
251611
Mfg#:
3B0122291B
Ships in 1-2 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.

$45.99

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

$40.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spring Band Clamp - Priced Each

ES#261790 - N90687201 - Spring Band Clamp - Priced Each - Ensure a leak free installation. 40x12 - Genuine Volkswagen Audi - Audi Volkswagen

Ensure a leak free installation. 40x12

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
261790
Mfg#:
N90687201
In Stock
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit

ES#2765882 - G013A8J1GKT2 - 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#:
2765882
Mfg#:
G013A8J1GKT2
Back Ordered
ON SALE!
$255.99

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

$241.89 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Coolant Flange

ES#275133 - 038121132C - Coolant Flange - Located on the left side of the cylinder head - Genuine Volkswagen Audi - Volkswagen

Located on the left side of the cylinder head For vehicles with ALH engine code and automatic transmission only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
275133
Mfg#:
038121132C
In Stock at Vendor
33% off MSRP

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

$119.99

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

$79.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cast Aluminum Thermostat Housing

ES#3553337 - 462-121-121TD - Cast Aluminum Thermostat Housing - Common point of failure for the cooling system - iABED Industries - Volkswagen

Common point of failure for the cooling system For vehicles with ALH engine code only

Brand:
iABED Industries - Corporate Logo
ES#:
3553337
Mfg#:
462-121-121TD
Back Ordered
Auto Notify
$39.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange Sealing O-Ring - Priced Each

ES#274529 - 037121687 - Coolant Flange Sealing O-Ring - Priced Each - Install a new o-ring for a proper seal. 36x3.15 - Genuine Volkswagen Audi - Audi Volkswagen

Install a new o-ring for a proper seal. 36x3.15

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
274529
Mfg#:
037121687
In Stock
30% off MSRP

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

$7.08

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

$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose

ES#307251 - 1J0122073A - Coolant Hose - From hard coolant pipe to heater core - Genuine Volkswagen Audi - Volkswagen

From hard coolant pipe to heater core For vehicles with production date up to 10/31/2000 only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
307251
Mfg#:
1J0122073A
In Stock
6% off MSRP

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

$62.99

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

$58.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler O-Ring

ES#275103 - 038117070 - Oil Cooler O-Ring - O-Ring between cover & oil cooler. 62.8mm - Genuine Volkswagen Audi - Volkswagen

O-Ring between cover & oil cooler. 62.8mm

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
275103
Mfg#:
038117070
In Stock
ON SALE! SAVE 18%
$16.99

This product was last offered at the strikethrough price on
02-23-2026

$13.87 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose

ES#2684948 - 1J0121086B - Coolant Hose - Oil cooler to water pipe & oil cooler to coolant flange - Meyle - Volkswagen

Oil cooler to water pipe & oil cooler to coolant flange 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with ALH engine code only

Brand:
Meyle - Corporate Logo
ES#:
2684948
Mfg#:
1J0121086B
In Stock
$38.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat O-Ring - Priced Each

ES#2865801 - 038121119B - Thermostat O-Ring - Priced Each - Recommended when changing the thermostat - Febi - Audi Volkswagen

Recommended when changing the thermostat 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2865801
Mfg#:
038121119B
In Stock
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit

ES#2785049 - 075121113DKT4 - Thermostat Replacement Kit - Featuring a low-temperature thermostat - Assembled By ECS - Volkswagen

Featuring a low-temperature thermostat 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2785049
Mfg#:
075121113DKT4
Ships in 7 Business Days
ON SALE! SAVE 14%
$135.99

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

$116.50 USD
Free Shipping
This product is lifetime replacement eligible Lifetime 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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Manufacturer names and/or part numbers are used only for identification purposes.

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