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Volkswagen MK4 Engine Cooling Parts

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Water Temperature Sensor - Brown/Black

ES#2900590 - 6U0919501B - Water Temperature Sensor - Brown/Black - 4-pin sensor for ECU - Vemo - Volkswagen

4-pin sensor for ECU

Brand:
Vemo - Corporate Logo
ES#:
2900590
Mfg#:
6U0919501B
In Stock at Vendor
$15.99

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

$14.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hex Screw � Priced Each

ES#1300832 - N90542604 - Hex Screw Priced Each - Install new hardware with your new parts. 6.6x19 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. 6.6x19

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1300832
Mfg#:
N90542604
Ships in 1-2 days
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange Sealing O-Ring - Priced Each

ES#2865748 - 037121687 - Coolant Flange Sealing O-Ring - Priced Each - Install a new o-ring for a proper seal. 36x3.15 - Febi - Audi Volkswagen

Install a new o-ring for a proper seal. 36x3.15 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2865748
Mfg#:
037121687
Ships on Oct 27, 2026
$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler

ES#4939990 - 078117021A - Oil Cooler - Common source of leaks, mounted between your oil filter and engine block - Bremmen Parts - Audi Volkswagen

Common source of leaks, mounted between your oil filter and engine block 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with AEG engine code only

Brand:
Bremmen Parts - Corporate Logo
ES#:
4939990
Mfg#:
078117021A
In Stock
ON SALE! SAVE 22%
$36.99

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

$28.99 USD
Free Shipping
on orders $49 and up

Expansion Tank Hose - Lower

ES#3189482 - 626-524 - Expansion Tank Hose - Lower - Replace at the first signs of leakage - Dorman - Audi Volkswagen

Replace at the first signs of leakage

Brand:
Dorman - Corporate Logo
ES#:
3189482
Mfg#:
626-524
Ships in 4 Business Days
$28.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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 1-2 days
9% 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
07-30-2026

$28.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Upper Radiator Mount - Priced Each

ES#308495 - 1J0806155E - Upper Radiator Mount - Priced Each - Mounts radiator to body - Genuine Volkswagen Audi - Audi Volkswagen

Mounts radiator to body

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
308495
Mfg#:
1J0806155E
Ships in 3 Business Days
9% 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
07-30-2026

$28.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Water Pump Hose - Upper

ES#2724222 - 1J0121063G - Auxiliary Water Pump Hose - Upper - Connects the upper radiator hose to the top of the secondary water pump - Rein - Volkswagen

Connects the upper radiator hose to the top of the secondary water pump 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with 5-speed automatic transmission only

Brand:
Rein - Corporate Logo
ES#:
2724222
Mfg#:
1J0121063G
Back Ordered
$28.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Quick Disconnect Coupler

ES#3189485 - 627-002 - Quick Disconnect Coupler - Push tab connector used in various places on the cooling system - Dorman - Audi Volkswagen

Push tab connector used in various places on the cooling system

Brand:
Dorman - Corporate Logo
ES#:
3189485
Mfg#:
627-002
Ships in 4 Business Days
$27.99 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 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
2771162
Mfg#:
075121113D
Ships on Dec 9, 2026
$13.99 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 For Our 25th Anniversary 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

Coolant Glow Plug - Priced Each

ES#3613055 - N10302102 - Coolant Glow Plug - Priced Each - 3 required - Meyle - Volkswagen

3 required 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
3613055
Mfg#:
N10302102
Back Ordered
$9.17 USD
Free Shipping
on orders $49 and up

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
In Stock at Vendor
$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

Coolant Hose -

Connects thermostat housing to auxiliary water pump For vehicles with manual transmission only

Brand:
Gates - Corporate Logo
ES#:
3235507
Mfg#:
1J0121449A
In Stock at Vendor
$26.99

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

$25.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat (87°C)

ES#3149450 - 050121113C - Thermostat (87C) - Prevent overheating and premature engine wear - Wahler - Audi Volkswagen

Prevent overheating and premature engine wear

Brand:
Wahler - Corporate Logo
ES#:
3149450
Mfg#:
050121113C
Ships on Aug 24, 2026
$25.99 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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