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Audi A3 Engine Cooling Parts

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Metal Cooling Hose Adapter/Breather Assembly

ES#4715589 - 06K121143PRM - Metal Cooling Hose Adapter/Breather Assembly - Mounts in cylinder head for coolant hose connection. Upgrade from the factory brittle plastic! - URO - Audi Volkswagen

Mounts in cylinder head for coolant hose connection. Upgrade from the factory brittle plastic! 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4715589
Mfg#:
06K121143PRM
In Stock
$26.29 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turbo Coolant Hose - Return

ES#4766160 - 06J121492C - Turbo Coolant Hose - Return - Keep your turbo system cooled properly - Bremmen Parts - Audi Volkswagen

Keep your turbo system cooled properly 10X Entries Into Our F80 M3 Sweepstakes

For vehicles with CBFA or CCTA engine code only

Brand:
Bremmen Parts - Corporate Logo
ES#:
4766160
Mfg#:
06J121492C
In Stock
ON SALE! SAVE 20%
$79.99

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

$63.64 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump

ES#4163617 - 06L121012L - Water Pump - Includes gasket and hardware - Genuine Volkswagen Audi - Audi Volkswagen

Includes gasket and hardware

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4163617
Mfg#:
06L121012L
In Stock
31% off MSRP

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

$196.65

This product was last offered at the strikethrough price on
07-30-2026

$134.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spill-Proof Coolant / Antifreeze Funnel Bleeder - Bavarian Autosport

ES#3673924 - B8800082 - Spill-Proof Coolant / Antifreeze Funnel Bleeder - Bavarian Autosport - Multiple adapters include to fit a variety of vehicles. - Bav Auto Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche
ECS Tuning recommends this product.

Multiple adapters include to fit a variety of vehicles. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bav Auto Tools - Corporate Logo
ES#:
3673924
Mfg#:
B8800082
In Stock
ON SALE! SAVE 15%
$33.99

This product was last offered at the strikethrough price on
08-19-2026

$28.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

R600 Coolant Underhose

ES#3969766 - VWR17G7R600 - R600 Coolant Underhose - Reroutes the ugly factory hose underneath your intake - Racingline - Audi Volkswagen

Reroutes the ugly factory hose underneath your intake

Brand:
Racingline - Corporate Logo
ES#:
3969766
Mfg#:
VWR17G7R600
In Stock
$68.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#253082 - 3B0121321 - Expansion Tank Cap - Keep proper pressure in your coolant system - Genuine Volkswagen Audi - Audi Volkswagen

Keep proper pressure in your coolant system

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
253082
Mfg#:
3B0121321
In Stock
25% off MSRP

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

$37.18

This product was last offered at the strikethrough price on
09-03-2026

$27.87 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Silicone Coolant Hose Kit - Red

ES#4362413 - Aut-MK5-002-RED - Silicone Coolant Hose Kit - Red - Replace your stock rubber hoses with silicone - Autobahn Autoworx - Audi Volkswagen

Replace your stock rubber hoses with silicone For vehicles with FSI engines only

Brand:
Autobahn Autoworx - Corporate Logo
ES#:
4362413
Mfg#:
AUT-MK5-002-RED
Ships in 1 Business Day
$275.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor - 2 Pin

ES#4766154 - 06A919501A - Coolant Temperature Sensor - 2 Pin - Monitors coolant temperature for fan control & gauge readings. Includes O-ring - Bremmen Parts - Audi Volkswagen

Monitors coolant temperature for fan control & gauge readings. Includes O-ring 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4766154
Mfg#:
06A919501A
In Stock
ON SALE! SAVE 15%
$14.99

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

$12.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

CTS High Performance MQB Radiator

ES#4447136 - CTS-HX-007 - CTS High Performance MQB Radiator - Plug-n-play replacement no modifications required! - CTS - Audi Volkswagen

Plug-n-play replacement no modifications required!

Brand:
CTS - Corporate Logo
ES#:
4447136
Mfg#:
CTS-HX-007
In Stock
ON SALE! SAVE 15%
$399.99

This product was last offered at the strikethrough price on
09-29-2026

$339.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Banjo Bolt - Priced Each

ES#279534 - 06A145541J - Banjo Bolt - Priced Each - Hollow bolt that allows fluid to pass through. M14x26 - Genuine Volkswagen Audi - Audi Volkswagen

Hollow bolt that allows fluid to pass through. M14x26

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
279534
Mfg#:
06A145541J
In Stock
25% off MSRP

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

$42.98

This product was last offered at the strikethrough price on
10-23-2026

$32.14 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heater Core Hose - Return

ES#315394 - 1K0122073FN - Heater Core Hose - Return - 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#:
315394
Mfg#:
1K0122073FN
Ships in 1-2 days
12% off MSRP

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

$62.32

This product was last offered at the strikethrough price on
10-23-2026

$54.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Cleaner - 300mL

ES#3195914 - 2051 - Radiator Cleaner - 300mL - Used to clean out your cooling system and restore efficiency - Liqui-Moly - Audi BMW Volkswagen Mercedes Benz MINI

Used to clean out your cooling system and restore efficiency 10X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat! This item is classified as Hazardous Materials and requires special shipping and handling. We cannot ship

Brand:
Liqui-Moly - Corporate Logo
ES#:
3195914
Mfg#:
2051
In Stock
43% off MSRP

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

$18.99

This product was last offered at the strikethrough price on
09-13-2026

$10.79 USD
Free Shipping
on orders $49 and up

Coolant Temperature Sensor - 2 Pin

ES#2718641 - 06A919501A - Coolant Temperature Sensor - 2 Pin - Monitors coolant temperature for fan control & gauge readings - Febi - Audi Volkswagen

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

Brand:
Febi - Corporate Logo
ES#:
2718641
Mfg#:
06A919501A
Ships in 1 Business Day
$18.09 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

APR Coolant Reroute Hose

ES#4674429 - CI100053-A - APR Coolant Reroute Hose - Plug and play upgrade that neatly runs under the intake for a clean install. - APR - Audi Volkswagen

Plug and play upgrade that neatly runs under the intake for a clean install. Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
4674429
Mfg#:
CI100053-A
Ships on Nov 18, 2026
ON SALE! SAVE 12%
$46.99

This product was last offered at the strikethrough price on
09-28-2026

$41.46 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank

ES#3412041 - 5Q0121407G - Expansion Tank - See your coolant levels clearly again, comes with coolant level sensor - Hudson - Audi Volkswagen

See your coolant levels clearly again, comes with coolant level sensor

Brand:
Hudson - Corporate Logo
ES#:
3412041
Mfg#:
5Q0121407G
Ships in 1-2 days
$36.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank Kit

ES#3672035 - 5q0121407tKT1 - Coolant Expansion Tank Kit - Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank replacement kit. - Genuine Volkswagen Audi - Audi Volkswagen

Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank replacement kit.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3672035
Mfg#:
5Q0121407TKT1
In Stock
$184.99

This product was last offered at the strikethrough price on
08-04-2026

$176.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial 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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