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Volkswagen Passat Engine Cooling Parts

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Water Temperature Sensor - Brown/Black

ES#2091061 - 357919501A - Water Temperature Sensor - Brown/Black - 4-pin sensor for ECU - MTC - Volkswagen

4-pin sensor for ECU

Brand:
MTC - Corporate Logo
ES#:
2091061
Mfg#:
357919501A
Ships in 10 Business Days
$8.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler Hose - Supply

ES#2575462 - 06B121058S - Oil Cooler Hose - Supply - Connects the oil cooler to the hard water pipe - Meyle - Audi Volkswagen

Connects the oil cooler to the hard water pipe 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with AUG or AWM engine codes only.

Brand:
Meyle - Corporate Logo
ES#:
2575462
Mfg#:
06B121058S
Ships on Nov 30, 2026
$8.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Level Warning Lamp Relay

ES#2525004 - 191919376A - Coolant Level Warning Lamp Relay - Located in fuse box. - MTC - Volkswagen

Located in fuse box.

Brand:
MTC - Corporate Logo
ES#:
2525004
Mfg#:
191919376A
Back Ordered
$8.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange

ES#3970404 - 028121132A - Coolant Flange - Located on the left side of the cylinder head, includes O-Ring - Meyle - Volkswagen

Located on the left side of the cylinder head, includes O-Ring 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
AHU & 1Z Engine codes only

Brand:
Meyle - Corporate Logo
ES#:
3970404
Mfg#:
028121132A
In Stock at Vendor
$8.85 USD
Free Shipping
on orders $49 and up

Expansion Tank Cap

ES#2814240 - 1H0121321A - Expansion Tank Cap - Replacement cap for your broken or lost piece - Hamburg Tech - Volkswagen

Replacement cap for your broken or lost piece We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2814240
Mfg#:
1H0121321A
Ships in 2 Business Days
$8.15 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose

ES#3183629 - 078121096H - Coolant Hose - Connects coolant pipe to oil cooler housing - MTC - Audi Volkswagen

Connects coolant pipe to oil cooler housing Connects the oil cooler to the lower water pipe up to the 1999 model year

Brand:
MTC - Corporate Logo
ES#:
3183629
Mfg#:
078121096H
Ships in 10 Business Days
$8.15 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Throttle Body Coolant Hose - left

ES#4818505 - 078121188B - Throttle Body Coolant Hose - left - Connects the coolant pipe to the throttle body - Bremmen Parts - Audi Volkswagen

Connects the coolant pipe to the throttle body 10X Entries For Our 25th Anniversary Sweepstakes!

For vehicles with ATQ engine code only

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818505
Mfg#:
078121188B
In Stock
Limited Qty Sale
$10.99

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

$7.99 USD
Free Shipping
on orders $49 and up

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 We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2815697
Mfg#:
3B0121321
Ships in 2 Business Days
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling Hose Adapter/Breather Assembly

ES#4859726 - 06K121143 - Cooling Hose Adapter/Breather Assembly - Mounts in cylinder head for coolant hose connection - Vaico - Volkswagen

Mounts in cylinder head for coolant hose connection We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
4859726
Mfg#:
06K121143
In Stock at Vendor
ON SALE! SAVE 11%
$8.99

This product was last offered at the strikethrough price on
07-16-2026

$7.99 USD
Free Shipping
on orders $49 and up

Water Pump Union

Connects water pump module to oil cooler

Brand:
Burgaflex - Corporate Logo
ES#:
4349484
Mfg#:
06L121131
Ships in 9 Business Days
$7.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cylinder Head Cooling Flange

Common area for coolant leaks - Located on cylinder head 2X Entries For Our 25th Anniversary Sweepstakes!
Fits vehicles with CCTA engine code only

Brand:
Rein - Corporate Logo
ES#:
5470765
Mfg#:
06J121132G
Ships in 4 Business Days
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#2801726 - 1H0121321C - Expansion Tank Cap - Replacement cap for your broken or lost piece - Rein - Volkswagen

Replacement cap for your broken or lost piece 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2801726
Mfg#:
1H0121321C
Back Ordered
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#2535169 - 1H0121321A - Expansion Tank Cap - Replacement cap for your broken or lost piece - URO - Volkswagen

Replacement cap for your broken or lost piece 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2535169
Mfg#:
1H0121321A
Ships in 2 Business Days
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Lower Radiator/Intercooler Mount - Priced Each

Stabilizes the radiator/intercooler within the engine bay

Brand:
Burgaflex - Corporate Logo
ES#:
4349524
Mfg#:
1K0121367F
Ships in 9 Business Days
$3.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

ES#2535114 - 037121121A - Thermostat Housing - Common point of failure or leaking for the cooling system, does not include O-Rings - URO - Audi Volkswagen

Common point of failure or leaking for the cooling system, does not include O-Rings 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2535114
Mfg#:
037121121A
Ships on Aug 7, 2026
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Lower Radiator Mount - Priced Each

ES#260828 - 8D0121275 - Lower Radiator Mount - Priced Each - Stabilizes the radiator within the core support - Febi - Audi Volkswagen

Stabilizes the radiator within the core support 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
260828
Mfg#:
8D0121275
Ships in 1-2 days
$7.79 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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