Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle

No Vehicle selected
Please select your vehicle below.

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
garage-red
Your Vehicle Please tap 'Select' to pick a vehicle
Your Vehicle Please tap 'Select' to pick a vehicle
Select

Volkswagen Passat Engine Cooling Parts

Sort By
Filter By
Return to Top

Oil Cooler Hose - Return

ES#2627319 - 06B121058 - Oil Cooler Hose - Return - Connects the oil cooler to the hard water tube - Rein - Audi Volkswagen

Connects the oil cooler to the hard water tube 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
For vehicles with AUG or AWM engine codes only.

Brand:
Rein - Corporate Logo
ES#:
2627319
Mfg#:
06B121058
In Stock at Vendor
$33.99

This product was last offered at the strikethrough price on
10-22-2026

$31.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heater Core Hose - Supply

ES#2802758 - 8D0819371H - Heater Core Hose - Supply - Connects the heater core to the cylinder head flange - Rein - Audi Volkswagen

Connects the heater core to the cylinder head flange 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2802758
Mfg#:
8D0819371H
Ships in 3 Business Days
$24.54

This product was last offered at the strikethrough price on
08-13-2026

$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Plastic Coolant Pipe

ES#5388760 - CHP0680 - Plastic Coolant Pipe - Connects water pump to cylinder head coolant flange - Rein - Audi Volkswagen

Connects water pump to cylinder head coolant flange 2X Entries Into Our F80 M3 Sweepstakes
For vehicles with CBFA or CCTA engine code only

Brand:
Rein - Corporate Logo
ES#:
5388760
Mfg#:
CHP0680
In Stock at Vendor
$24.99 USD
Free Shipping
on orders $49 and up

Cooling Hose Adapter/Breather Assembly

ES#2697223 - 06K121143 - Cooling Hose Adapter/Breather Assembly - Mounts in cylinder head for coolant hose connection - Genuine Volkswagen Audi - Volkswagen

Mounts in cylinder head for coolant hose connection

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2697223
Mfg#:
06K121143
Ships in 1-2 days
$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Upper

ES#2529063 - 3C0122101GJ - Radiator Hose - Upper - Connects the radiator to the thermostat housing - Genuine Volkswagen Audi - Volkswagen

Connects the radiator to the thermostat housing For vehilces with CCTA engine code and Tiptronic transmission only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2529063
Mfg#:
3C0122101GJ
Ships in 1 Business Day
36% off MSRP

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

$387.99

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

$248.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Cooling System Refresh Kit - TSI

ES#2765422 - 1K0121251ABKT4 - Cooling System Refresh Kit - TSI - This comprehensive kit eliminates weak spots in your cooling system - Assembled By ECS - Volkswagen

This comprehensive kit eliminates weak spots in your cooling system 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2765422
Mfg#:
1K0121251ABKT4
In Stock
ON SALE!
$254.99

This product was last offered at the strikethrough price on
06-18-2026

$247.33 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Coolant Distribution Pipe

ES#3618084 - 1K0121087H - Coolant Distribution Pipe - Found in the upper radiator hose, this piece is prone to cracking - URO - Audi Volkswagen

Found in the upper radiator hose, this piece is prone to cracking 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
3618084
Mfg#:
1K0121087H
In Stock
$12.89 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heater Core Return Hose

ES#2064744 - 5C0122073A - Heater Core Return Hose - Connects rear thermostat housing to heater core - Genuine Volkswagen Audi - Volkswagen

Connects rear thermostat housing to heater core For vehicles with automatic transmission only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2064744
Mfg#:
5C0122073A
In Stock
Limited Qty Sale
$268.99

This product was last offered at the strikethrough price on
06-15-2026

$239.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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

ES#2802189 - 059919501AKT - Coolant Temperature Sensor With O-Ring & Clip - 4 Pin - Updated Green sensor with square/round connector. Please check existing sensor color - Rein - Audi Volkswagen

Updated Green sensor with square/round connector. Please check existing sensor color 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
For vehicles with VIN from 3B-X-491,581, split is in the 1999 model year.

Brand:
Rein - Corporate Logo
ES#:
2802189
Mfg#:
059919501AKT
In Stock
Limited Qty Sale
$17.99

This product was last offered at the strikethrough price on
10-12-2026

$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Quick Coupler

ES#4810736 - 1K0122291C - Quick Coupler - Connects upper radiator hose to return line - Rein - Audi Volkswagen

Connects upper radiator hose to return line 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4810736
Mfg#:
1K0122291C
In Stock
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Round Seal - Priced Each

ES#2684298 - N90316801 - Round Seal - Priced Each - Seals sensors into coolant housings. 19.6x3.65 - Genuine Volkswagen Audi - Audi Volkswagen

Seals sensors into coolant housings. 19.6x3.65

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2684298
Mfg#:
N90316801
In Stock
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Replacement Kit

ES#2966326 - 8D0121403LxKT - Expansion Tank Replacement Kit - Install a brand new expansion tank with a new cap and hardware - Assembled By ECS - Audi Volkswagen

Install a brand new expansion tank with a new cap and hardware 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2966326
Mfg#:
8D0121403LXKT
Ships in 1 Business Day
ON SALE!
$49.99

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

$47.88 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heater Core Supply Hose

ES#315430 - 1K0122157EN - Heater Core Supply Hose - Replacement heater core supply hose assembly - Genuine Volkswagen Audi - Volkswagen

Replacement heater core supply hose assembly For vehicles with manual transmission only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
315430
Mfg#:
1K0122157EN
Ships in 1-2 days
11% off MSRP

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

$133.99

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

$118.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Filter Housing Gasket and Engine Oil Cooler Gasket

ES#5481449 - 06F115441KT - Oil Filter Housing Gasket and Engine Oil Cooler Gasket - Seals housing to the engine block and Connects oil cooler to oil filter housing - Elring - Audi Volkswagen

Seals housing to the engine block and Connects oil cooler to oil filter housing 2X Entries Into Our F80 M3 Sweepstakes
For vehicles with FSI engines only

Brand:
Elring - Corporate Logo
ES#:
5481449
Mfg#:
06F115441KT
In Stock
$33.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cylinder Head Coolant Flange

ES#2712765 - 058121132C - Cylinder Head Coolant Flange - Located on the back of the cylinder head - Vaico - Audi Volkswagen

Located on the back of the cylinder head We Price Match - Give Us A Call or Chat!
For vehicles with AUG or AWM engine codes only.

Brand:
Vaico - Corporate Logo
ES#:
2712765
Mfg#:
058121132C
Ships in 1 Business Day
$18.99

This product was last offered at the strikethrough price on
10-12-2026

$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spring Band Clamp - Priced Each

ES#261790 - N90687201 - Spring Band Clamp - Priced Each - Ensure a leak free installation. 40x12 - Genuine Volkswagen Audi - Audi Volkswagen

Ensure a leak free installation. 40x12

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
261790
Mfg#:
N90687201
In Stock
$6.99 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.

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.

Terms of Use Privacy Policy Your Privacy Choices Cookie Policy ECS Tuning is part of Enthusiast Auto Holdings