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Volkswagen MK4 Engine Cooling Parts

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Thermostat Replacement Kit

ES#2954033 - 038121121KT2 - Thermostat Replacement Kit - Maintain proper operating temperature with a new thermostat, housing and hardware - Assembled By ECS - Volkswagen

Maintain proper operating temperature with a new thermostat, housing and hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with ALH engine code only

Brand:
Assembled By ECS - Corporate Logo
ES#:
2954033
Mfg#:
038121121KT2
Ships on Jul 27, 2026
Auto Notify
ON SALE! SAVE 42%
$36.99

This product was last offered at the strikethrough price on
12-29-2025

$21.41 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Distribution Pipe

ES#4883863 - 1J0121087C - Coolant Distribution Pipe - Plastic 3-way oulet at upper radiator hose - Rein - Audi Volkswagen

Plastic 3-way oulet at upper radiator hose affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4883863
Mfg#:
1J0121087C
Ships in 1 Business Day
$6.99 USD
Free Shipping
on orders $49 and up

Radiator Fan Switch Connector

ES#4920517 - 1J0973203 - Radiator Fan Switch Connector - 3-pin triangular connector - URO - Volkswagen

3-pin triangular connector affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
URO - Corporate Logo
ES#:
4920517
Mfg#:
1J0973203
Ships in 1 Business Day
$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Fan Switch Gasket

ES#467116 - N0438083 - Radiator Fan Switch Gasket - Install new hardware with your new parts. 22x29x1.50 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. 22x29x1.50 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
467116
Mfg#:
N0438083
Ships in 2 Business Days
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose

ES#4164667 - 1J0121086R - Coolant Hose - From water pipe and upper radiator hose to oil cooler - Meyle - Volkswagen

From water pipe and upper radiator hose to oil cooler affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
For vehicles with production date up to 10/31/2000 only

Brand:
Meyle - Corporate Logo
ES#:
4164667
Mfg#:
1J0121086R
Ships in 1 day
$19.27 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose Coupler

ES#3190070 - 902-916 - Coolant Hose Coupler - Replace brittle plastic parts. - Dorman - Volkswagen

Replace brittle plastic parts. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Dorman - Corporate Logo
ES#:
3190070
Mfg#:
902-916
Ships in 4 Business Days
$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Freeze Plug - 36mm

ES#261775 - 059103113 - Freeze Plug - 36mm - Keep your engine block sealed - Febi - Audi Volkswagen

Keep your engine block sealed affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
261775
Mfg#:
059103113
In Stock at Vendor
$3.99

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

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

Thermostat Housing Cover

ES#2812861 - 021121121C - Thermostat Housing Cover - Common source of coolant leaks around your thermostat - Hamburg Tech - Volkswagen

Common source of coolant leaks around your thermostat 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#:
2812861
Mfg#:
021121121C
Ships in 1 Business Day
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor

ES#2800809 - 059919501A - Coolant Temperature Sensor - Revised green 4 pin sensor, located in the cooling flange located on the side of the cylinder head - Meistersatz - Audi Volkswagen

Revised green 4 pin sensor, located in the cooling flange located on the side of the cylinder head affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Meistersatz - Corporate Logo
ES#:
2800809
Mfg#:
059919501A
Ships in 3 Business Days
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#3139100 - 1J0121407E - Coolant Expansion Tank - Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank - Hudson - 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:
Hudson - Corporate Logo
ES#:
3139100
Mfg#:
1J0121407E
Ships in 1 day
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling Hose

ES#2503136 - 1J0121447H - Cooling Hose - Connects throttle body to cooling Y pipe - Original Equipment Supplier - Volkswagen

Connects throttle body to cooling Y pipe affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with AEG engine code to production date 10/31/2000

Brand:
Original Equipment Supplier - Corporate Logo
ES#:
2503136
Mfg#:
1J0121447H
Ships in 1 day
11% off MSRP

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

$18.99

This product was last offered at the strikethrough price on
06-07-2026

$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Fan Switch � 87-93�C

ES#251122 - 701959481 - Auxiliary Fan Switch 87-93C - Square connector with rounded ends - Meyle - Volkswagen

Square connector with rounded ends affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
For vehicles with square connector only

Brand:
Meyle - Corporate Logo
ES#:
251122
Mfg#:
701959481
Ships on Oct 15, 2026
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Hose - Lower

ES#2802995 - 1J0122109AQ - Expansion Tank Hose - Lower - Replace at the first signs of leakage - Rein - Audi Volkswagen

Replace at the first signs of leakage affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2802995
Mfg#:
1J0122109AQ
Ships in 3 Business Days
$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 87°C

ES#2084648 - 044121113 - Thermostat - 87C - Keep your car running at the proper temperature. - Meyle - Audi Volkswagen

Keep your car running at the proper temperature. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
2084648
Mfg#:
044121113
Ships on Oct 15, 2026
$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Drain Adapter

ES#2816130 - 6Q0122291F - Coolant Drain Adapter - Lower radiator drain coupling adapter - Hamburg Tech - Audi Volkswagen

Lower radiator drain coupling adapter 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#:
2816130
Mfg#:
6Q0122291F
Ships in 1 Business Day
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#2815697 - 3B0121321 - Expansion Tank Cap - Keep proper pressure in your coolant system - Hamburg Tech - Audi Volkswagen

Keep proper pressure in your coolant system 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#:
2815697
Mfg#:
3B0121321
Ships in 1 Business Day
$7.99 USD
Free Shipping
on orders $49 and up
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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