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Audi A3 Engine Heating & Cooling Hoses

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9-Piece FSI Silicone Coolant Hose Kit - Black

ES#2730822 - 003590ECS01 - 9-Piece FSI Silicone Coolant Hose Kit - Black - Silicone coolant hose kit to upgrade from your stock rubber hoses. Includes stainless steel hose clamps. - ECS - Audi Volkswagen

Silicone coolant hose kit to upgrade from your stock rubber hoses. Includes stainless steel hose clamps. 10X Entries For Our 25th Anniversary Sweepstakes!

For vehicles with FSI engine only

Brand:
ECS - Corporate Logo
ES#:
2730822
Mfg#:
003590ECS01
In Stock
ON SALE! SAVE 25%
$259.99

This product was last offered at the strikethrough price on
06-13-2026

$194.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Billet Coolant Vent Union

ES#4810768 - 034-102-Z048 - 034Motorsport Billet Coolant Vent Union - Designed to replace the factory plastic and failure-prone coolant union on the cylinder head of the EA888 Gen3 and Gen4 engines. - 034Motorsport - Audi Volkswagen

Designed to replace the factory plastic and failure-prone coolant union on the cylinder head of the EA888 Gen3 and Gen4 engines.

Brand:
034Motorsport - Corporate Logo
ES#:
4810768
Mfg#:
034-102-Z048
In Stock
ON SALE! SAVE 10%
$31.00

This product was last offered at the strikethrough price on
06-28-2026

$27.90 USD
Free Shipping

MK7/8V Silicone Coolant Hose Re-route Kit

ES#3638683 - 018193ECS02 - MK7/8V Silicone Coolant Hose Re-route Kit - Hide your coolant hose under your intake system for a cleaner appearance - ECS - Audi Volkswagen

Hide your coolant hose under your intake system for a cleaner appearance 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3638683
Mfg#:
018193ECS02
In Stock
ON SALE! SAVE 25%
$58.99

This product was last offered at the strikethrough price on
06-13-2026

$44.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heavy-Duty Aluminum Thermostat Cooling Hose Adapter (5Q0122291DA)

ES#4920775 - 054443la01KT - Heavy-Duty Aluminum Thermostat Cooling Hose Adapter (5Q0122291DA) - Upgrade to durable cast aluminum construction & say goodbye to failure-prone plastic! - ECS - Audi Volkswagen

Upgrade to durable cast aluminum construction & say goodbye to failure-prone plastic! 10X Entries For Our 25th Anniversary Sweepstakes!
Not for Vehicles with Engine Codes CYFB, DJJA, or DLRA

Brand:
ECS - Corporate Logo
ES#:
4920775
Mfg#:
054443LA01KT
In Stock
ON SALE! SAVE 20%
$104.99

This product was last offered at the strikethrough price on
06-13-2026

$83.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Lower

ES#4151260 - 1K0122051GN - Radiator Hose - Lower - Connects the lower radiator port to the water pump housing - Rein - Audi Volkswagen

Connects the lower radiator port to the water pump housing 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with TSI engines only

Brand:
Rein - Corporate Logo
ES#:
4151260
Mfg#:
1K0122051GN
In Stock
$101.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Pipe - Upgraded Aluminum

ES#4351838 - 06J121065F - Coolant Pipe - Upgraded Aluminum - Connects water pump to cylinder head coolant flange. Lifetime warranty! - URO Premium - Audi Volkswagen

Connects water pump to cylinder head coolant flange. Lifetime warranty! 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
URO Premium - Corporate Logo
ES#:
4351838
Mfg#:
06J121065F
In Stock
$29.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Aluminum Water Pump Union - With Seals

ES#4028087 - 06H121131C - Aluminum Water Pump Union - With Seals - Featuring HD aluminum construction, offering a more robust design - Connection point between the oil cooler and the water pump assembly, includes o-rings - URO Premium - Audi Volkswagen

Featuring HD aluminum construction, offering a more robust design - Connection point between the oil cooler and the water pump assembly, includes o-rings 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
URO Premium - Corporate Logo
ES#:
4028087
Mfg#:
06H121131C
In Stock
$9.19 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Upper

ES#2926052 - 5Q0122101EA - Radiator Hose - Upper - Connects upper radiator to the coupling piece, includes quick disconnect - Genuine Volkswagen Audi - Audi Volkswagen

Connects upper radiator to the coupling piece, includes quick disconnect

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2926052
Mfg#:
5Q0122101EA
In Stock
15% off MSRP

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

$173.32

This product was last offered at the strikethrough price on
07-19-2026

$147.06 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Lower Radiator Hose

ES#2737457 - 5Q0122051AN - Lower Radiator Hose - Complete assembly with quick-coupling piece - Genuine Volkswagen Audi - Audi Volkswagen

Complete assembly with quick-coupling piece

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2737457
Mfg#:
5Q0122051AN
In Stock
7% off MSRP

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

$234.99

This product was last offered at the strikethrough price on
02-26-2026

$219.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Upper

ES#4818602 - 1K0122101LA - Radiator Hose - Upper - Connects the upper radiator port to the water pump housing and transmission cooler - Bremmen Parts - Audi Volkswagen

Connects the upper radiator port to the water pump housing and transmission cooler 10X Entries For Our 25th Anniversary Sweepstakes!

For TSI engine models with a CBFA engine code and automatic transmission only

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818602
Mfg#:
1K0122101LA
In Stock
ON SALE! SAVE 20%
$99.99

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

$79.96 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
Back Ordered
Auto Notify
$68.99 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
In Stock
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
07-19-2026

$54.99 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 2 Business Days
$275.00 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! 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
APR - Corporate Logo
ES#:
4674429
Mfg#:
CI100053-A
Ships in 1 Business Day
10% off MSRP

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

$51.99

This product was last offered at the strikethrough price on
07-19-2026

$46.99 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
30% 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
02-23-2026

$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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 For Our 25th Anniversary 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

More About Engine Heating & Cooling Hoses

Over time, the rubber cooling hoses in your engine's cooling system become brittle and can burst or crack, resulting in a coolant leak. Replace old and tired coolant hoses with OEM cooling hoses or quality aftermarket options to save some money.

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