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Volkswagen MK4 Engine Cooling Parts

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Heater Core Hose

ES#4900732 - 1J0122157EM - Heater Core Hose - From cylinder head coolant flange to passenger side of the heater core - Meyle - Volkswagen

From cylinder head coolant flange to passenger side of the heater core 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#:
4900732
Mfg#:
1J0122157EM
Special Order: No Guaranteed ETA
$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange -

ES#1831886 - 06A121132AP - Coolant Flange - - Located on the driver side of the cylinder head, this pipe houses the coolant tempature sensor - Meyle - Audi Volkswagen

Located on the driver side of the cylinder head, this pipe houses the coolant tempature sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
For vehicles with manual transmission or 4-speed automatic transmission only

Brand:
Meyle - Corporate Logo
ES#:
1831886
Mfg#:
06A121132AP
Special Order: No Guaranteed ETA
$9.99 USD
Free Shipping
on orders $49 and up

Radiator Fan Control Module

ES#3971037 - 1J0919506N - Radiator Fan Control Module - Controls fan function of your main cooling fan - Meyle - Volkswagen

Controls fan function of your main cooling fan 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#:
3971037
Mfg#:
1J0919506N
Special Order: No Guaranteed ETA
$110.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

ES#3970165 - 038121121 - Thermostat Housing - Common point of failure or leaking for the cooling system on your TDI. - Meyle - Volkswagen

Common point of failure or leaking for the cooling system on your TDI. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
For vehicles with ALH engine code only

Brand:
Meyle - Corporate Logo
ES#:
3970165
Mfg#:
038121121
Special Order: No Guaranteed ETA
$5.38

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

$5.34 USD
Free Shipping
on orders $49 and up

Radiator Hose - Upper

From the coolant flange to radiator 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#:
4328454
Mfg#:
1J0122101AP
Special Order: No Guaranteed ETA
$46.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Cooling System Refresh Kit With Black ECS Water Pipe

ES#2770834 - MKIV12VCOOLKT3 - ECS Cooling System Refresh Kit With Black ECS Water Pipe - This comprehensive kit eliminates weak spots in your cooling system and replaces them with performance options. - Assembled By ECS - Volkswagen

This comprehensive kit eliminates weak spots in your cooling system and replaces them with performance options. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
See description for installation notes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2770834
Mfg#:
MKIV12VCOOLKT3
Back Ordered
$764.99 USD
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit

ES#2765678 - 1J0121253ADKT8 - 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 automatic transmission from the 2002 model year and ALH engine code

Brand:
Assembled By ECS - Corporate Logo
ES#:
2765678
Mfg#:
1J0121253ADKT8
Back Ordered
Auto Notify
ON SALE!
$511.99

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

$504.60 USD
This product is lifetime replacement eligible Partial Replacement

ECS Cooling System Refresh Kit - Performance

ES#2960546 - MKIVGLICOOLKT3 - 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 with production date up to 08/31/2000 only. Also fits vehicles with AWP engine code with manual transmission.

Brand:
Assembled By ECS - Corporate Logo
ES#:
2960546
Mfg#:
MKIVGLICOOLKT3
Back Ordered
$922.99 USD
This product is lifetime replacement eligible Partial Replacement

ECS Cooling System Refresh Kit With Silver ECS Water Pipe

ES#2770835 - MKIV12VCOOLKT4 - ECS Cooling System Refresh Kit With Silver ECS Water Pipe - This comprehensive kit eliminates weak spots in your cooling system and replaces them with performance options. - Assembled By ECS - Volkswagen

This comprehensive kit eliminates weak spots in your cooling system and replaces them with performance options. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
See description for installation notes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2770835
Mfg#:
MKIV12VCOOLKT4
Back Ordered
$801.99

This product was last offered at the strikethrough price on
03-30-2026

$764.99 USD
This product is lifetime replacement eligible Partial Replacement

ECS Cooling System Refresh Kit - OE Plus

ES#2710337 - 1J0121253P - ECS Cooling System Refresh Kit - OE Plus - Replace the most common failure points in your cars cooling system including a replacement 2-row radiator - Assembled By ECS - Volkswagen

Replace the most common failure points in your cars cooling system including a replacement 2-row radiator 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#:
2710337
Mfg#:
1J0121253P
Back Ordered
ON SALE! SAVE 12%
$622.64

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

$548.77 USD
This product is lifetime replacement eligible Partial Replacement

ECS Cooling System Refresh Kit With Silver ECS Water Pipe

ES#2702184 - MKIV12VCOOLKT - ECS Cooling System Refresh Kit With Silver ECS Water Pipe - Kit assembled with all the usual wear items in the cooling system to keep your engine at optimum temperature. - Assembled By ECS - Volkswagen

Kit assembled with all the usual wear items in the cooling system to keep your engine at optimum temperature. 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#:
2702184
Mfg#:
MKIV12VCOOLKT
Back Ordered
ON SALE!
$794.99

This product was last offered at the strikethrough price on
03-05-2026

$763.12 USD
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - OE

ES#2588416 - MKIVJTCRK20 - Cooling System Refresh Kit - OE - Everything needed for a full cooling system overhaul - Assembled By ECS - Volkswagen

Everything needed for a full cooling system overhaul affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with AZG or AVH engine code only

Brand:
Assembled By ECS - Corporate Logo
ES#:
2588416
Mfg#:
MKIVJTCRK20
Back Ordered
ON SALE! SAVE 17%
$650.99

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

$538.54 USD
This product is lifetime replacement eligible Partial Replacement

ECS Cooling System Refresh Kit - Performance

ES#2581315 - MKIVGLICOOLKT1 - ECS Cooling System Refresh Kit - Performance - This comprehensive kit eliminates weak spots in your cooling system and replaces them with performance options. Blue hoses - Assembled By ECS - Volkswagen

This comprehensive kit eliminates weak spots in your cooling system and replaces them with performance options. Blue 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#:
2581315
Mfg#:
MKIVGLICOOLKT1
Back Ordered
$701.99 USD
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit

ES#3477495 - 1J0121253AKT - 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 manual transmission up through the 2001 model year with ALH engine code

Brand:
Assembled By ECS - Corporate Logo
ES#:
3477495
Mfg#:
1J0121253AKT
Back Ordered
Auto Notify
ON SALE!
$665.99

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

$645.44 USD
This product is lifetime replacement eligible Partial Replacement

ECS Cooling System Refresh Kit With Black ECS Water Pipe

ES#2702204 - MKIV12VCOOLKT2 - ECS Cooling System Refresh Kit With Black ECS Water Pipe - Kit assembled with all the usual wear items in the cooling system to keep your engine at optimum temperature. - Assembled By ECS - Volkswagen

Kit assembled with all the usual wear items in the cooling system to keep your engine at optimum temperature. 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#:
2702204
Mfg#:
MKIV12VCOOLKT2
Back Ordered
$611.99 USD
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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