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Volkswagen MK4 Engine Cooling Parts

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Water Distribution Pipe

ES#307174 - 1J0121087D - Water Distribution Pipe - Used in the cooling system to connect two main radiator hoses and the hose to the throttle body - Genuine Volkswagen Audi - Volkswagen

Used in the cooling system to connect two main radiator hoses and the hose to the throttle body For vehicles with AEG engine code only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
307174
Mfg#:
1J0121087D
Ships in 1 day
13% off MSRP

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

$31.99

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

$27.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Distribution Pipe

ES#3190108 - 902-996 - Coolant Distribution Pipe - Three way connector that attaches directly to the upper radiator hose - Dorman - Audi Volkswagen

Three way connector that attaches directly to the upper radiator hose For vehicles with manual transmission only

Brand:
Dorman - Corporate Logo
ES#:
3190108
Mfg#:
902-996
Ships in 4 Business Days
$13.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sandwich Plate Fitting - priced each

ES#2764124 - MMSPF10ANBK - Sandwich Plate Fitting - priced each - M20 X 1.5 /10AN - Mishimoto - Audi BMW Volkswagen MINI

M20 X 1.5 /10AN

Brand:
Mishimoto - Corporate Logo
ES#:
2764124
Mfg#:
MMSPF10ANBK
In Stock at Vendor
$13.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 80°C

ES#2771162 - 075121113D - Thermostat - 80C - Includes sealing O-Ring - Meyle - Audi Volkswagen

Includes sealing O-Ring 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
2771162
Mfg#:
075121113D
Ships on Oct 19, 2026
$13.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Gasket

ES#275129 - 038121119 - Water Pump Gasket - Ensure a proper seal when installing your new water pump. 57x4mm - Genuine Volkswagen Audi - Volkswagen

Ensure a proper seal when installing your new water pump. 57x4mm

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
275129
Mfg#:
038121119
In Stock
Limited Qty Sale
$7.99

This product was last offered at the strikethrough price on
08-26-2026

$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump O-Ring

ES#2538531 - 06A121119 - Water Pump O-Ring - Ensure a proper seal when installing a new water pump. 53x4mm - Rein - Audi Volkswagen

Ensure a proper seal when installing a new water pump. 53x4mm 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2538531
Mfg#:
06A121119
In Stock at Vendor
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Distribution Pipe

ES#3098865 - 1J0121087D - Water Distribution Pipe - Used in the cooling system to connect two main radiator hoses and the hose to the throttle body - URO - Volkswagen

Used in the cooling system to connect two main radiator hoses and the hose to the throttle body 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
For vehicles with AEG engine code only

Brand:
URO - Corporate Logo
ES#:
3098865
Mfg#:
1J0121087D
Ships in 1 Business Day
$6.90 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heater Core Hose

Connects heater core to coolant flange For vehicles with AEG engine code up to production date 10/31/2000 only

Brand:
Metzger - Corporate Logo
ES#:
4905483
Mfg#:
1J0122157P
Ships in 1 Business Day
$27.99

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

$26.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Seal

ES#469825 - N90436301 - Water Pump Seal - Sealing ring for water pump - Genuine Volkswagen Audi - Volkswagen

Sealing ring for water pump

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
469825
Mfg#:
N90436301
Ships in 1 day
$8.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sealing O-Ring - Priced Each

ES#4070443 - 058121687 - Sealing O-Ring - Priced Each - Seals the coolant flange to the water supply pipe. 31.5x3.65 - Rein - Audi Volkswagen

Seals the coolant flange to the water supply pipe. 31.5x3.65 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
For vehicles with automatic transmissions only

Brand:
Rein - Corporate Logo
ES#:
4070443
Mfg#:
058121687
Ships in 1 Business Day
$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

Quick Disconnect Coupler

ES#2586520 - 3B0122291B - Quick Disconnect Coupler - Push tab connector used in various places on the cooling system - Vemo - Audi Volkswagen

Push tab connector used in various places on the cooling system

Brand:
Vemo - Corporate Logo
ES#:
2586520
Mfg#:
3B0122291B
In Stock
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose

ES#307142 - 1J0121051L - Coolant Hose - Connects water pipe to auxiliary radiator return - Genuine Volkswagen Audi - Volkswagen

Connects water pipe to auxiliary radiator return

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
307142
Mfg#:
1J0121051L
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.

$26.99

This product was last offered at the strikethrough price on
10-01-2026

$23.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Lower

ES#2515536 - 1J0122051AN - Radiator Hose - Lower - Lower radiator hose for automatic transmission cars. - MTC - Volkswagen

Lower radiator hose for automatic transmission cars. For vehicles with BEW engine code and automatic transmission only

Brand:
MTC - Corporate Logo
ES#:
2515536
Mfg#:
1J0122051AN
Ships in 9 Business Days
$23.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor With O-Ring & Clip - 4 Pin

ES#2832 - 078919501BKT - Coolant Temperature Sensor With O-Ring & Clip - 4 Pin - Blue sensor with square connector. Please check existing sensor color - Vemo - Audi Volkswagen

<font color='blue'>Blue</font> sensor with square connector. Please check existing sensor color Fits Brazilian production cars, check color before ordering.

Brand:
Vemo - Corporate Logo
ES#:
2832
Mfg#:
078919501BKT
Ships on Jan 28, 2027
$23.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Drain Adapter

ES#3190071 - 902-919 - Coolant Drain Adapter - Lower radiator drain coupling adapter - Dorman - Audi Volkswagen

Lower radiator drain coupling adapter

Brand:
Dorman - Corporate Logo
ES#:
3190071
Mfg#:
902-919
Ships in 4 Business Days
$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Fan Switch � 87-93�C

ES#2091156 - 701959481 - Auxiliary Fan Switch 87-93C - Square connector with rounded ends - MTC - Volkswagen

Square connector with rounded ends For vehicles with square connector only

Brand:
MTC - Corporate Logo
ES#:
2091156
Mfg#:
701959481
Ships in 6 Business Days
$11.99 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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