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Audi A3 Engine Cooling Parts

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Thermostat

ES#4900543 - 03L121111AC - Thermostat - This also includes the thermostat housing - Meyle - Audi Volkswagen

This also includes the thermostat housing 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
4900543
Mfg#:
03L121111AC
Special Order: No Guaranteed ETA
$55.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat

Includes housing and gasket 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Meyle - Corporate Logo
ES#:
5483075
Mfg#:
06L121111N
Special Order: No Guaranteed ETA
$472.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Water Pump

Secondary pump for more efficient cooling 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Meyle - Corporate Logo
ES#:
5482286
Mfg#:
5Q0965561B
Special Order: No Guaranteed ETA
$183.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Cylinder Head Cooling Flange

Common area for coolant leaks - Located on cylinder head 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with FSI engines only

Brand:
Bremmen Parts - Corporate Logo
ES#:
5470357
Mfg#:
06F121132H
Ships on Dec 24, 2026
Auto Notify
ON SALE! SAVE 20%
$42.99

This product was last offered at the strikethrough price on
05-29-2026

$34.39 USD
This product is lifetime replacement eligible Lifetime Replacement

Radiator Installation Kit

ES#2592791 - 1K0121367PKT2 - 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 For Our 25th Anniversary Sweepstakes!
For TSI engine models with CCTA engine code & DSG transmission only

Brand:
Assembled By ECS - Corporate Logo
ES#:
2592791
Mfg#:
1K0121367PKT2
Back Ordered
Auto Notify
$293.99

This product was last offered at the strikethrough price on
06-18-2026

$292.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Water Pump

ES#3579621 - 04L121011L - Water Pump - Restore coolant flow - Vaico - Audi Volkswagen

Restore coolant flow We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
3579621
Mfg#:
04L121011L
Special Order: No Guaranteed ETA
$104.99 USD
Free Shipping
on orders $49 and up

Auxiliary Fan Assembly

Includes left and right fan motors. We Price Match - Give Us A Call or Chat!

Brand:
Nissens - Corporate Logo
ES#:
4715310
Mfg#:
85644
Back Ordered
$289.99

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

$281.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heater Core Pipe Set

Supply and return pipes from the heater core to the firewall

Brand:
Original Equipment Supplier - Corporate Logo
ES#:
2574926
Mfg#:
1K1819857C
Back Ordered
20% off MSRP

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

$110.00

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

$87.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor - 2 Pin

Monitors coolant temperature for fan control & gauge readings

Brand:
SMP - Corporate Logo
ES#:
4057464
Mfg#:
06A919501A
Back Ordered
$32.99

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

$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fan Assembly - 360mm/295mm

The two cooling fans and fan shroud found behind the radiator

Brand:
TYC - Corporate Logo
ES#:
4733117
Mfg#:
62460
Back Ordered
$336.99

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

$326.99 USD
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

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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