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Audi B6 A4 Quattro 1.8T

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Audi B6 A4 Quattro 1.8T Engine Cooling Parts

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Expansion Tank Cap

ES#2598116 - 8E0121321 - Expansion Tank Cap - Plastic pressure cap for expansion tank - Calorstat - Audi

Plastic pressure cap for expansion tank

Brand:
Calorstat - Corporate Logo
ES#:
2598116
Mfg#:
8E0121321
Back Ordered
$7.99 USD
Free Shipping
on orders $49 and up
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 We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2865558
Mfg#:
025121142
In Stock
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor - 2 Pin

ES#2813031 - 06A919501A - Coolant Temperature Sensor - 2 Pin - Monitors coolant temperature for fan control & gauge readings - Hamburg Tech - Audi Volkswagen

Monitors coolant temperature for fan control & gauge readings We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2813031
Mfg#:
06A919501A
Ships in 1 Business Day
$13.99 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 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
3970169
Mfg#:
5Q0121321
Ships on Oct 29, 2026
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Hose

ES#2802313 - 8E0121107G - Expansion Tank Hose - Connects the radiator feed hose to the expansion tank - Rein - Audi

Connects the radiator feed hose to the expansion tank 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2802313
Mfg#:
8E0121107G
Ships in 1 Business Day
$10.99 USD
Free Shipping
on orders $49 and up

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 Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2802007
Mfg#:
1J0121321B
Ships on Oct 23, 2026
$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turbo Coolant Hose - Return

ES#2878441 - 058121471B - Turbo Coolant Hose - Return - Connects the turbocharger to the hard water pipe - Vaico - Audi Volkswagen

Connects the turbocharger to the hard water pipe We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2878441
Mfg#:
058121471B
Special Order: No Guaranteed ETA
$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

VW | Radiator Hose

ES#4859654 - 06F121057D - VW | Radiator Hose - Vaico - Audi

We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
4859654
Mfg#:
06F121057D
Ships in 1 Business Day
$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Anti-Freeze Tester

ES#4337913 - CTAA195 - Anti-Freeze Tester - Tests all ethylene glycol solutions with radiator hot or cold - CTA Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Tests all ethylene glycol solutions with radiator hot or cold

Brand:
CTA Tools - Corporate Logo
ES#:
4337913
Mfg#:
CTAA195
In Stock
$9.98 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

O-RING (36 X 3.15MM)

ES#2800836 - 37121687 - O-RING (36 X 3.15MM) - Meistersatz - Audi Volkswagen

Brand:
Meistersatz - Corporate Logo
ES#:
2800836
Mfg#:
37121687
In Stock at Vendor
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump O-Ring

ES#2800960 - 06A121119 - Water Pump O-Ring - Ensure a proper seal when installing a new water pump. 53x4mm - Meistersatz - Audi Volkswagen

Ensure a proper seal when installing a new water pump. 53x4mm

Brand:
Meistersatz - Corporate Logo
ES#:
2800960
Mfg#:
06A121119
Ships in 3 Business Days
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#3970648 - 8E0121321 - Expansion Tank Cap - Plastic pressure cap for expansion tank - Meyle - Audi

Plastic pressure cap for expansion tank 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
3970648
Mfg#:
8E0121321
Ships on Oct 29, 2026
$9.16 USD
Free Shipping
on orders $49 and up

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 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
2575462
Mfg#:
06B121058S
Ships on Dec 10, 2026
$8.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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 1 Business Day
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#4066648 - 8E0121321 - Expansion Tank Cap - Hamburg Tech - Audi

We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
4066648
Mfg#:
8E0121321
Ships in 1 Business Day
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cylinder Head Cooling Flange

ES#3234486 - 06B121132E - Cylinder Head Cooling Flange - Located at the rear of cylinder head, includes o-rings - URO - Audi

Located at the rear of cylinder head, includes o-rings 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
3234486
Mfg#:
06B121132E
Ships in 1 Business Day
$7.41 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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