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Audi C5 A6 Quattro 2.7T

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Audi C5 A6 Quattro 2.7T Engine Cooling Parts

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Multipurpose Relay - Priced Each

ES#3437886 - 4H0951253 - Multipurpose Relay - Priced Each - Replacement 4 pin relay - Flosser - Audi Volkswagen

Replacement 4 pin relay Used for fan control

Brand:
Flosser - Corporate Logo
ES#:
3437886
Mfg#:
4H0951253
In Stock at Vendor
$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Multipurpose Relay - Priced Each

Replacement 4 pin relay Used for fan control

Brand:
Wehrle - Corporate Logo
ES#:
3437884
Mfg#:
4H0951253
In Stock at Vendor
$12.99

This product was last offered at the strikethrough price on
07-15-2026

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

Coolant Expansion Tank

ES#3142773 - 8E0121403D - Coolant Expansion Tank - Includes integrated coolant level sensor - Hudson - Audi

Includes integrated coolant level sensor From the 2002 model year

Brand:
Hudson - Corporate Logo
ES#:
3142773
Mfg#:
8E0121403D
Ships in 1 day
$23.56 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hex Bolt - Priced Each

ES#467636 - N10205604 - Hex Bolt - Priced Each - Install new hardware with your new parts. M6x32 - Genuine Volkswagen Audi - Audi

Install new hardware with your new parts. M6x32 Secures the thermostat housing to the engine

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
467636
Mfg#:
N10205604
Ships in 1 day
33% off MSRP

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

$1.48

This product was last offered at the strikethrough price on
07-20-2026

$0.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#2802007 - 1J0121321B - Expansion Tank Cap - Keep proper pressure on your coolant - Rein - Audi Volkswagen Porsche

Keep proper pressure on your coolant 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2802007
Mfg#:
1J0121321B
Ships on Aug 5, 2026
$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Gasket

ES#280250 - 06C121043 - Water Pump Gasket - Ensure a proper seal when installing a new water pump - Genuine Volkswagen Audi - Audi

Ensure a proper seal when installing a new water pump From VIN 4B-2-105001, split is in the 2002 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280250
Mfg#:
06C121043
Ships in 2 Business Days
10% off MSRP

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

$20.99

This product was last offered at the strikethrough price on
07-20-2026

$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermal Switch - 2 Pin

ES#2608211 - 357919369F - Thermal Switch - 2 Pin - Located in the coolant pipe that connects to the cylinder head - Febi - Audi Volkswagen

Located in the coolant pipe that connects to the cylinder head 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2608211
Mfg#:
357919369F
Back Ordered
Auto Notify
$17.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Multipurpose Relay - Priced Each

ES#2576222 - 4H0951253 - Multipurpose Relay - Priced Each - Replacement 4 pin relay - Vemo - Audi Volkswagen

Replacement 4 pin relay Used for fan control

Brand:
Vemo - Corporate Logo
ES#:
2576222
Mfg#:
4H0951253
Ships in 1 day
$17.99

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

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

Radiator Hose - Lower

Connects the lower radiator port to the thermostat housing

Brand:
Burgaflex - Corporate Logo
ES#:
4349554
Mfg#:
8D0121055T
Ships in 8 Business Days
$15.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Sensor Retaining Clip - Priced Each

ES#2865558 - 025121142 - Sensor Retaining Clip - Priced Each - Secures the coolant temperature sensor in place - Febi - Audi Volkswagen

Secures the coolant temperature sensor in place 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2865558
Mfg#:
025121142
Ships on Oct 20, 2026
Auto Notify
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap Seal

ES#2598146 - 1H0121687A - Expansion Tank Cap Seal - Seals the expansion tank cap to the reservoir. 28.5x3.8 - Vaico - Audi Volkswagen

Seals the expansion tank cap to the reservoir. 28.5x3.8 We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2598146
Mfg#:
1H0121687A
In Stock at Vendor
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap - Black

ES#3970169 - 5Q0121321 - Expansion Tank Cap - Black - Keep proper pressure in your coolant system - Meyle - Audi Volkswagen Porsche

Keep proper pressure in your coolant system 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
3970169
Mfg#:
5Q0121321
Ships on Nov 27, 2026
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sensor Retaining Clip - Priced Each

ES#2586934 - 032121142 - Sensor Retaining Clip - Priced Each - Secures the coolant temperature sensor in place - Rein - Audi Volkswagen

Secures the coolant temperature sensor in place 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2586934
Mfg#:
032121142
Ships in 1 day
$4.07 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Multipurpose Relay - Priced Each

ES#2815889 - 4H0951253A - Multipurpose Relay - Priced Each - Replacement 4-pin/40 amp relay - Hamburg Tech - Audi Volkswagen

Replacement 4-pin/40 amp relay We Price Match - Give Us A Call or Chat!
Used for fan control

Brand:
Hamburg Tech - Corporate Logo
ES#:
2815889
Mfg#:
4H0951253A
Ships in 1 Business Day
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Fan Switch - 4 Pin

ES#2816315 - 8D0959481B - Auxiliary Fan Switch - 4 Pin - Located on the lower radiator hose connection - Hamburg Tech - Audi Volkswagen

Located on the lower radiator hose connection We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2816315
Mfg#:
8D0959481B
Ships in 1 Business Day
$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Multipurpose Relay - Priced Each

ES#4333710 - 7M0951253A - Multipurpose Relay - Priced Each - Meyle - Audi Volkswagen

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

Brand:
Meyle - Corporate Logo
ES#:
4333710
Mfg#:
7M0951253A
Ships on Nov 27, 2026
$9.99 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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Manufacturer names and/or part numbers are used only for identification purposes.

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