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Volkswagen MK4 Engine Cooling Parts

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Cast Aluminum Coolant Flange

ES#3553273 - 462-121-132CS - Cast Aluminum Coolant Flange - Replace your inferior plastic component - iABED Industries - Volkswagen

Replace your inferior plastic component For vehicles with production date up to 08/31/2000 only

Brand:
iABED Industries - Corporate Logo
ES#:
3553273
Mfg#:
462-121-132CS
Back Ordered
$39.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cast Aluminum Thermostat Housing

ES#3470645 - 462-121-121C - Cast Aluminum Thermostat Housing - Common point of failure for the cooling system. Does not include O-ring. - iABED Industries - Volkswagen

Common point of failure for the cooling system. Does not include O-ring.

Brand:
iABED Industries - Corporate Logo
ES#:
3470645
Mfg#:
462-121-121C
Back Ordered
$39.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sealing O-ring

ES#274530 - 037121688 - Sealing O-ring - For left cylinder head cooling flange (50x3.15) - Genuine Volkswagen Audi - Volkswagen

For left cylinder head cooling flange (50x3.15)

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
274530
Mfg#:
037121688
Ships in 2 Business Days
8% off MSRP

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

$12.99

This product was last offered at the strikethrough price on
10-02-2026

$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sensor Retaining Clip - Priced Each

ES#1906430 - 032121142 - Sensor Retaining Clip - Priced Each - Secures the coolant temperature sensor in place. - MTC - Audi Volkswagen

Secures the coolant temperature sensor in place.

Brand:
MTC - Corporate Logo
ES#:
1906430
Mfg#:
032121142
In Stock
$2.03 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Pipe "Crack Pipe"

ES#4465367 - 021121050E - Coolant Pipe "Crack Pipe" - Pipe from back of water pump to thermostat housing, goes under intake manifold - Dorman - Volkswagen

Pipe from back of water pump to thermostat housing, goes under intake manifold

Brand:
Dorman - Corporate Logo
ES#:
4465367
Mfg#:
021121050E
Ships in 1 Business Day
$61.99

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

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

Coolant Hose

ES#307287 - 1J0122157FE - Coolant Hose - Connects EGR cooler to heater core - Genuine Volkswagen Audi - Volkswagen

Connects EGR cooler to heater core For vehicles with BEW engine code only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
307287
Mfg#:
1J0122157FE
Ships in 10 Business Days
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
10-02-2026

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

Hex Bolt - Priced Each

ES#3100999 - N90221806 - Hex Bolt - Priced Each - To secure water pump to block, three required. M8x20 - Genuine Volkswagen Audi - Volkswagen

To secure water pump to block, three required. M8x20

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3100999
Mfg#:
N90221806
In Stock
15% off MSRP

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

$4.02

This product was last offered at the strikethrough price on
10-02-2026

$3.43 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Oil Cooler

ES#2717921 - 028117021L - Engine Oil Cooler - Common source of leaks, mounted between your oil filter and engine block - Vemo - Audi Volkswagen

Common source of leaks, mounted between your oil filter and engine block

Brand:
Vemo - Corporate Logo
ES#:
2717921
Mfg#:
028117021L
Ships in 1 Business Day
$118.99

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

$115.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose

ES#3194952 - 1J0122101AR - Coolant Hose - Connects adapter on upper radiator hose to water pipe which goes to the secondary radiator - Vaico - Volkswagen

Connects adapter on upper radiator hose to water pipe which goes to the secondary radiator We Price Match - Give Us A Call or Chat!
For vehicles with manual transmission only

Brand:
Vaico - Corporate Logo
ES#:
3194952
Mfg#:
1J0122101AR
Ships in 1 Business Day
$59.99

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

$57.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose

ES#307253 - 1J0122073AT - Coolant Hose - Connects heater core to auxiliary water pump - Genuine Volkswagen Audi - Volkswagen

Connects heater core to auxiliary water pump

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
307253
Mfg#:
1J0122073AT
In Stock
Limited Qty Sale
$128.99

This product was last offered at the strikethrough price on
09-30-2026

$114.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Anti-Freeze Tester

ES#3536250 - EZRSP102 - Anti-Freeze Tester - Don't let your engine freeze, be sure with this easy to use tester - E-Z Red Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Don't let your engine freeze, be sure with this easy to use tester

Brand:
E-Z Red Tools - Corporate Logo
ES#:
3536250
Mfg#:
EZRSP102
Ships in 1 Business Day
$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Banjo Bolt - Priced Each

ES#3549989 - N0210719 - Banjo Bolt - Priced Each - Hollow bolt that allows fluid to pass through. M12 - Genuine Volkswagen Audi - Audi Volkswagen

Hollow bolt that allows fluid to pass through. M12 Secures the turbo oil supply line

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3549989
Mfg#:
N0210719
Ships in 1-2 days
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Installation Kit With Radiator Mounts And Hardware

ES#2588189 - 1J0806155EKT1 - Radiator Installation Kit With Radiator Mounts And Hardware - When replacing or reinstalling your radiator do not reuse your old, worn radiator mounts. - Genuine Volkswagen Audi - Volkswagen

When replacing or reinstalling your radiator do not reuse your old, worn radiator mounts. For vehicles with factory air conditioning

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2588189
Mfg#:
1J0806155EKT1
Ships in 1-2 days
$115.00

This product was last offered at the strikethrough price on
08-31-2026

$113.72 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Heater Hose

ES#3462996 - 1J0121156AT - Heater Hose - 4-way heater hose with quick coupling piece & attachment for bracket, connects to heater core - Hudson - Audi Volkswagen

4-way heater hose with quick coupling piece & attachment for bracket, connects to heater core

Brand:
Hudson - Corporate Logo
ES#:
3462996
Mfg#:
1J0121156AT
Ships in 1-2 days
$112.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit

ES#2581583 - 050121113CKT1 - Thermostat Replacement Kit - Maintain proper operating temperature with a new thermostat, housing and hardware - Genuine Volkswagen Audi - Audi Volkswagen

Maintain proper operating temperature with a new thermostat, housing and hardware

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2581583
Mfg#:
050121113CKT1
Ships in 4 Business Days
$118.99

This product was last offered at the strikethrough price on
07-26-2026

$112.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit

ES#2593883 - MK420TSTAT - Thermostat Replacement Kit - All parts and hardware needed for replacing a thermostat - Genuine Volkswagen Audi - Volkswagen

All parts and hardware needed for replacing a thermostat

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2593883
Mfg#:
MK420TSTAT
Ships in 4 Business Days
$118.99

This product was last offered at the strikethrough price on
07-26-2026

$112.99 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.

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