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Audi C5 A6 V6 30v

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Audi C5 A6 V6 30v Engine Cooling Parts

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Thermostat Assembly

ES#3961 - 06C121111C - Thermostat Assembly - Housing included - Wahler - Audi

Housing included

Brand:
Wahler - Corporate Logo
ES#:
3961
Mfg#:
06C121111C
In Stock
$47.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank - With Cap

ES#3189300 - 603-703 - Coolant Expansion Tank - With Cap - Includes integrated coolant level sensor - Dorman - Audi Volkswagen

Includes integrated coolant level sensor

Brand:
Dorman - Corporate Logo
ES#:
3189300
Mfg#:
603-703
Ships in 4 Business Days
$44.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler

ES#2813125 - 078117021A - Oil Cooler - Common source of leaks, mounted between your oil filter and engine block - Hamburg Tech - Audi Volkswagen

Common source of leaks, mounted between your oil filter and engine block We Price Match - Give Us A Call or Chat!
Up to VIN 4B-Y-000001, split is in the 2000 model year

Brand:
Hamburg Tech - Corporate Logo
ES#:
2813125
Mfg#:
078117021A
Ships in 1 Business Day
$44.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spal 185 Degree Thermo-Switch

Replacement thermo-switch for Spal electric fan conversion kits.

Brand:
Spal - Corporate Logo
ES#:
4753440
Mfg#:
SPL185TS
Back Ordered
$44.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Wrench

ES#2210254 - VAG1590 - Water Pump Wrench - Used for removing 2-piece pulley on V-belt systems - Genuine Volkswagen Audi - Audi Volkswagen

Used for removing 2-piece pulley on V-belt systems

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2210254
Mfg#:
VAG1590
In Stock
Limited Qty Sale
$47.99

This product was last offered at the strikethrough price on
08-24-2026

$41.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler

ES#3214625 - 078117021A - Oil Cooler - Common source of leaks, mounted between your oil filter and engine block - URO - Audi Volkswagen

Common source of leaks, mounted between your oil filter and engine block 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Up to VIN 4B-Y-000001, split is in the 2000 model year

Brand:
URO - Corporate Logo
ES#:
3214625
Mfg#:
078117021A
Ships in 1 Business Day
$38.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Lower

ES#2627317 - 8D0121055T - Radiator Hose - Lower - Connects the lower radiator port to the thermostat housing - Rein - Audi Volkswagen

Connects the lower radiator port to the thermostat housing 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2627317
Mfg#:
8D0121055T
Ships in 3 Business Days
$37.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Assembly - 92C

ES#3149393 - 06C121111E - Thermostat Assembly - 92C - Housing included - Rein - Audi

Housing included 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3149393
Mfg#:
06C121111E
Ships in 3 Business Days
$34.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor

ES#2800809 - 059919501A - Coolant Temperature Sensor - Revised green 4 pin sensor, located in the cooling flange located on the side of the cylinder head - Meistersatz - Audi Volkswagen

Revised green 4 pin sensor, located in the cooling flange located on the side of the cylinder head

Brand:
Meistersatz - Corporate Logo
ES#:
2800809
Mfg#:
059919501A
Ships in 3 Business Days
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler Hose

ES#4055320 - 078121058AN - Oil Cooler Hose - Connects the oil cooler to the upper coolant pipe - Vaico - Audi Volkswagen

Connects the oil cooler to the upper coolant pipe We Price Match - Give Us A Call or Chat!
AHA, ATQ Engine Codes - From VIN 4B-X-131001 To VIN 4B-1-120000

Brand:
Vaico - Corporate Logo
ES#:
4055320
Mfg#:
078121058AN
Ships on Jan 18, 2027
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

oil cooler

ES#2866456 - 078117021A - oil cooler - Common source of leaks, mounted between your oil filter and engine block - Febi - Audi Volkswagen

Common source of leaks, mounted between your oil filter and engine block We Price Match - Give Us A Call or Chat!
Up to VIN 4B-Y-000001, split is in the 2000 model year

Brand:
Febi - Corporate Logo
ES#:
2866456
Mfg#:
078117021A
Back Ordered
$33.23 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Hose - (NO LONGER AVAILABLE)

ES#3235890 - 8D0121109N - Expansion Tank Hose - (NO LONGER AVAILABLE) - Runs from the bottom of the expansion tank to the water pipe - Gates - Audi Volkswagen

Runs from the bottom of the expansion tank to the water pipe

Brand:
Gates - Corporate Logo
ES#:
3235890
Mfg#:
8D0121109N
Ships on Oct 9, 2026
$30.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Fan Switch - 4 Pin

Located on the lower radiator hose connection

Brand:
Facet - Corporate Logo
ES#:
4045813
Mfg#:
8D0959481B
Ships in 2 Business Days
$33.99

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

$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Gasket

ES#2580782 - 06C121043 - Water Pump Gasket - Ensure a proper seal when installing a new water pump - Elring - Audi

Ensure a proper seal when installing a new water pump 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
From VIN 4B-2-105001, split is in the 2002 model year

Brand:
Elring - Corporate Logo
ES#:
2580782
Mfg#:
06C121043
Ships in 4 Business Days
$5.99 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 Into Our F80 M3 Sweepstakes
Up to VIN 4B-Y-000001, split is in the 2000 model year

Brand:
Bremmen Parts - Corporate Logo
ES#:
4939990
Mfg#:
078117021A
In Stock
Limited Qty Sale
$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

Radiator Hose - Lower

ES#2718687 - 8D0121055T - Radiator Hose - Lower - Connects the lower radiator port to the thermostat housing - Hutchinson Worldwide - Audi Volkswagen

Connects the lower radiator port to the thermostat housing

Brand:
Hutchinson Worldwide - Corporate Logo
ES#:
2718687
Mfg#:
8D0121055T
Ships in 2 Business Days
$28.99

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

$27.99 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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