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Audi A3 Quattro 2.0T

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Audi A3 Quattro 2.0T Engine Cooling Parts

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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#3672033 - 3C0121321 - Expansion Tank Cap - Keep proper pressure in your coolant system - Stant - Audi Volkswagen Porsche

Keep proper pressure in your coolant system

Brand:
Stant - Corporate Logo
ES#:
3672033
Mfg#:
3C0121321
Back Ordered
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

HOLDING CLIP

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

Brand:
Rein - Corporate Logo
ES#:
2801984
Mfg#:
32121142
Ships in 3 Business Days
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Union - With Seals

ES#3557813 - 06H121131C - Water Pump Union - With Seals - connection point between the oil cooler and the water pump assembly - Includes o-rings - Hamburg Tech - Audi Volkswagen

connection point between the oil cooler and the water pump assembly - Includes o-rings We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
3557813
Mfg#:
06H121131C
In Stock
Limited Qty Sale
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Flange Nut - Priced Each

ES#471081 - N90887703 - Flange Nut - Priced Each - Hex head self locking nut used in various areas on your European vehicle. M6 - Genuine Volkswagen Audi - Audi Volkswagen

Hex head self locking nut used in various areas on your European vehicle. M6 Used to secure engine cooling fans to the fan shroud - Three per fan

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
471081
Mfg#:
N90887703
In Stock
Limited Qty Sale
$0.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling Hose Retaining Clip - Priced Each

ES#4941347 - 1J0121142 - Cooling Hose Retaining Clip - Priced Each - Secures the radiator hose flange in place. 32mm - Bremmen Parts - Audi Volkswagen

Secures the radiator hose flange in place. 32mm 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4941347
Mfg#:
1J0121142
Back Ordered
ON SALE! SAVE 57%
$1.99

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

$0.86 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heater Core Hose Supply and Return - Set

ES#5481725 - 1K0122157HEKT - Heater Core Hose Supply and Return - Set - Connects the heater core pipe to the flange - Genuine Volkswagen Audi - Audi Volkswagen

Connects the heater core pipe to the flange

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
5481725
Mfg#:
1K0122157HEKT
In Stock
$122.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Installation Kit

ES#2592792 - 1K0121367FKT3 - Radiator Installation Kit - Includes everything you need to install a new radiator - Assembled By ECS - Audi

Includes everything you need to install a new radiator 10X Entries Into Our F80 M3 Sweepstakes
Engine code CBFA

Brand:
Assembled By ECS - Corporate Logo
ES#:
2592792
Mfg#:
1K0121367FKT3
Ships in 1 Business Day
ON SALE!
$286.99

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

$271.46 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

CSF Universal Large Single-Pass Cooler

ES#5470103 - 8371 - CSF Universal Large Single-Pass Cooler - Universal cooler used for: engine oil, transmission oil, power-steering, differential oil, and as a water/coolant heat exchanger. - CSF - Audi BMW Volkswagen Mercedes Benz MINI

Universal cooler used for: engine oil, transmission oil, power-steering, differential oil, and as a water/coolant heat exchanger. 2X Entries Into Our F80 M3 Sweepstakes
Universal fitment design - modifications may be necessary to run this cooler

Brand:
CSF - Corporate Logo
ES#:
5470103
Mfg#:
8371
Ships in 3 Business Days
$499.00 USD
Free Shipping

Water Pump Module - Plastic

ES#5341456 - 06H121026DDP - Water Pump Module - Plastic - Includes the thermostat, temp sensor, and gasket - Rein - Audi Volkswagen

Includes the thermostat, temp sensor, and gasket 2X Entries Into Our F80 M3 Sweepstakes
For models without electrical connection on pump inlet (please inspect prior to ordering).

Brand:
Rein - Corporate Logo
ES#:
5341456
Mfg#:
06H121026DDP
Ships in 3 Business Days
$415.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose Connector

ES#5507088 - 3B0122291B - Coolant Hose Connector - Fix a leaking heater core or radiator hose connection with this direct-fit OE-quality replacement quick-connect flange. - Rein - Audi Volkswagen

Fix a leaking heater core or radiator hose connection with this direct-fit OE-quality replacement quick-connect flange. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
Rein - Corporate Logo
ES#:
5507088
Mfg#:
3B0122291B
Ships in 3 Business Days
$5.99 USD

Auxiliary Water Pump

ES#5515657 - 5N0965561 - Auxiliary Water Pump - Restore vital coolant circulation and protect your turbocharger from extreme heat soak with this OE-quality replacement auxiliary pump. - Rein - Audi Volkswagen

Restore vital coolant circulation and protect your turbocharger from extreme heat soak with this OE-quality replacement auxiliary pump. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
Rein - Corporate Logo
ES#:
5515657
Mfg#:
5N0965561
Ships in 3 Business Days
$119.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Engine Oil Cooler Gasket

Connects oil cooler to oil filter housing

Brand:
Meistersatz - Corporate Logo
ES#:
5374204
Mfg#:
06J117070C
Ships in 3 Business Days
$6.99 USD
Free Shipping
on orders $49 and up

Thermostat O-Ring

Ensure a proper seal when installing your new thermostat

Brand:
Meistersatz - Corporate Logo
ES#:
5374203
Mfg#:
06H121119E
Ships in 3 Business Days
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turbo Coolant Hose - Return

Keep your turbo system cooled properly 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4809958
Mfg#:
06J121492C
Ships in 3 Business Days
$59.99 USD

Heater Core With Heater Core Pipe Gasket Set

ES#5482073 - 1k0819031d1KT - Heater Core With Heater Core Pipe Gasket Set - Transforms hot coolant into warmth for your cabin with the necessary gaskets and clamps for your new heater core - Genuine Volkswagen Audi - Audi Volkswagen

Transforms hot coolant into warmth for your cabin with the necessary gaskets and clamps for your new heater core

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
5482073
Mfg#:
1K0819031D1KT
Ships in 1 day
$315.99

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

$314.00 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.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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