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Audi A3 Engine Cooling Parts

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Auxiliary Fan Assembly - 295mm

ES#3492309 - 1K0959455ET - Auxiliary Fan Assembly - 295mm - Smaller of the two fans found behind the radiator - Nissens - Audi Volkswagen

Smaller of the two fans found behind the radiator We Price Match - Give Us A Call or Chat!

Brand:
Nissens - Corporate Logo
ES#:
3492309
Mfg#:
1K0959455ET
Ships in 6 Business Days
$160.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Anti-Freeze Tester

ES#3536250 - EZRSP102 - Anti-Freeze Tester - Don't let your engine freeze, be sure with this easy to use tester - E-Z Red Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Don't let your engine freeze, be sure with this easy to use tester

Brand:
E-Z Red Tools - Corporate Logo
ES#:
3536250
Mfg#:
EZRSP102
Ships in 1 Business Day
$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Fan Assembly - 295mm

ES#3139119 - 1K0959455ET - Auxiliary Fan Assembly - 295mm - Smaller of the two fans found behind the radiator - Hudson - Audi Volkswagen

Smaller of the two fans found behind the radiator

Brand:
Hudson - Corporate Logo
ES#:
3139119
Mfg#:
1K0959455ET
Ships in 4 Business Days
$79.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

CTS Turbo Coolant Line Under Intake Hose

ES#5435535 - IT-0108 - CTS Turbo Coolant Line Under Intake Hose - Reroute your engines clutter and clean up your bay with the CTS Turbo Under-Intake Coolant Line - CTS - Audi Volkswagen

Reroute your engine’s clutter and clean up your bay with the CTS Turbo Under-Intake Coolant Line

Brand:
CTS - Corporate Logo
ES#:
5435535
Mfg#:
IT-0108
Ships in 8 Business Days
$39.99 USD
Free Shipping

Retaining Spring - Priced Each

ES#281436 - 06H121142C - Retaining Spring - Priced Each - Secures the coolant temperature sensor in the thermostat/water pump - Genuine Volkswagen Audi - Audi

Secures the coolant temperature sensor in the thermostat/water pump Secures the temp sensor in the water pump/thermostat housing

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
281436
Mfg#:
06H121142C
In Stock
ON SALE!
$5.99

This product was last offered at the strikethrough price on
06-25-2026

$5.68 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Hardware Kit

ES#3141663 - N90945002KT - Water Pump Hardware Kit - Complete hardware kit for replacing the water pump - Assembled By ECS - Audi

Complete hardware kit for replacing the water pump 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with FSI engines only

Brand:
Assembled By ECS - Corporate Logo
ES#:
3141663
Mfg#:
N90945002KT
Ships in 1-3 days
ON SALE! SAVE 28%
$18.99

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

$13.66 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

CSF OE Replacement Radiator

Standard replacement radiator 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
CSF - Corporate Logo
ES#:
5388648
Mfg#:
3974
Ships in 3 Business Days
$149.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat O-Ring

ES#11800 - N90136802 - Thermostat O-Ring - Ensure a proper seal when installing your new thermostat - Febi - Audi BMW Volkswagen

Ensure a proper seal when installing your new thermostat 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
11800
Mfg#:
N90136802
In Stock
$1.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#5346938 - EPT0030 - Coolant Expansion Tank - Does not include cap - Rein - Audi Volkswagen

Does not include cap 2X Entries For Our 25th Anniversary Sweepstakes!
2X Entries For Our G87 M2 Sweepstakes!

Brand:
Rein - Corporate Logo
ES#:
5346938
Mfg#:
EPT0030
In Stock
$20.99 USD
Free Shipping
on orders $49 and up

Thermostat Housing O-Ring

ES#2394 - 021121119A - Thermostat Housing O-Ring - O-Ring between thermostat housing and cylinder head - Victor Reinz - Audi Volkswagen

O-Ring between thermostat housing and cylinder head

Brand:
Victor Reinz - Corporate Logo
ES#:
2394
Mfg#:
021121119A
In Stock
$10.99

This product was last offered at the strikethrough price on
04-28-2026

$4.07 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Return Hose

ES#4376413 - 1K0121063J - Coolant Return Hose - Connects the auxiliary water pump to the hard water pipe - URO - Audi Volkswagen

Connects the auxiliary water pump to the hard water pipe 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4376413
Mfg#:
1K0121063J
Ships in 1 Business Day
ON SALE!
$21.99

This product was last offered at the strikethrough price on
06-25-2026

$20.89 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

FSI Oil Cooler Adapter Plate Kit - Clear Anodized

ES#3470649 - 462-635-0008 - FSI Oil Cooler Adapter Plate Kit - Clear Anodized - Allows for clean installation of an external oil cooler - iABED Industries - Audi Volkswagen

Allows for clean installation of an external oil cooler For vehicles with FSI engines only

Brand:
iABED Industries - Corporate Logo
ES#:
3470649
Mfg#:
462-635-0008
Special Order: No Guaranteed ETA
$145.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Oil Cooler

ES#3438770 - 06D117021C - Engine Oil Cooler - Lowers engine oil temperature - Behr - Audi Volkswagen

Lowers engine oil temperature For vehicles with FSI engines only

Brand:
Behr - Corporate Logo
ES#:
3438770
Mfg#:
06D117021C
Ships in 1-2 days
$148.99

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

$144.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling System Refresh Kit - Level 2

ES#2608169 - 06F121111FKT4 - Cooling System Refresh Kit - Level 2 - Replace your thermostat, temp sensors, and expansion tank after performing a proper coolant system flush! - Assembled By ECS - Audi

Replace your thermostat, temp sensors, and expansion tank after performing a proper coolant system flush! 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with FSI engines only

Brand:
Assembled By ECS - Corporate Logo
ES#:
2608169
Mfg#:
06F121111FKT4
Ships in 1-2 days
ON SALE! SAVE 15%
$170.99

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

$144.55 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Coolant Hose Relocation Kit

ES#2999256 - CI100033-A - Coolant Hose Relocation Kit - Reroute your coolant hose! - APR - Audi Volkswagen

Reroute your coolant hose! Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
APR - Corporate Logo
ES#:
2999256
Mfg#:
CI100033-A
Ships in 5 Business 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.

$53.99

This product was last offered at the strikethrough price on
07-21-2026

$47.99 USD
Free Shipping
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 Audi

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Manufacturer names and/or part numbers are used only for identification purposes.

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