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Audi S4 Engine Heating & Cooling Hoses

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Upper Radiator Hose

ES#4004617 - 8K0121101J - Upper Radiator Hose - Connects the upper radiator port to the hard water tube - Rein - Audi

Connects the upper radiator port to the hard water tube 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4004617
Mfg#:
8K0121101J
In Stock
$86.99

This product was last offered at the strikethrough price on
10-22-2026

$36.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Heater Hose

ES#2540982 - 8K0819342L - Auxiliary Heater Hose - 90 Degree hose that connects to the auxiliary water pump - Genuine Volkswagen Audi - Audi

90 Degree hose that connects to the auxiliary water pump

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2540982
Mfg#:
8K0819342L
Ships in 1 day
9% off MSRP

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

$78.99

This product was last offered at the strikethrough price on
10-25-2026

$71.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

lower Radiator Hose

ES#450263 - 8K0121055B - lower Radiator Hose - Direct replacement for your worn or cracked hose - Genuine Volkswagen Audi - Audi

Direct replacement for your worn or cracked hose

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
450263
Mfg#:
8K0121055B
Ships in 1 Business Day
9% off MSRP

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

$156.66

This product was last offered at the strikethrough price on
10-25-2026

$143.33 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Compressor Flange Water Hose Kit - Right

ES#4056902 - 06e121546KT - Compressor Flange Water Hose Kit - Right - Connects the supercharger flange to the hard water line. Upper & lower spring clamps included. - Genuine Volkswagen Audi - Audi

Connects the supercharger flange to the hard water line. Upper & lower spring clamps included.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4056902
Mfg#:
06E121546KT
In Stock
$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Compressor Flange Water Hose Kit - Left

ES#4056901 - 06e121545KT - Compressor Flange Water Hose Kit - Left - Connects the supercharger flange to the hard water line. Upper & lower spring clamps included. - Genuine Volkswagen Audi - Audi

Connects the supercharger flange to the hard water line. Upper & lower spring clamps included.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4056901
Mfg#:
06E121545KT
In Stock
$30.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler Hose - Supply

ES#280782 - 06E121058E - Oil Cooler Hose - Supply - Connects the oil cooler to the hard water tube - Genuine Volkswagen Audi - Audi

Connects the oil cooler to the hard water tube

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280782
Mfg#:
06E121058E
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.

$34.99

This product was last offered at the strikethrough price on
10-25-2026

$23.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Pipe O-Ring - Priced Each

ES#470699 - N90765301 - Coolant Pipe O-Ring - Priced Each - Provides seal from metal to plastic cooling line end fitting. 32X4 - Genuine Volkswagen Audi - Audi Volkswagen

Provides seal from metal to plastic cooling line end fitting. 32X4

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
470699
Mfg#:
N90765301
In Stock
5% off MSRP

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

$2.62

This product was last offered at the strikethrough price on
10-25-2026

$2.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose

ES#4818503 - 078121096AD - Coolant Hose - Connects coolant pipe to oil cooler housing - Bremmen Parts - Audi Volkswagen

Connects coolant pipe to oil cooler housing 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818503
Mfg#:
078121096AD
In Stock
ON SALE! SAVE 15%
$19.99

This product was last offered at the strikethrough price on
09-16-2026

$16.99 USD
Free Shipping
on orders $49 and up

Radiator Hose - Lower

ES#2872397 - 8D0121055T - Radiator Hose - Lower - Connects the lower radiator port to the thermostat housing - Febi - Audi Volkswagen

Connects the lower radiator port to the thermostat housing We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2872397
Mfg#:
8D0121055T
In Stock
$24.99

This product was last offered at the strikethrough price on
05-13-2026

$23.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Silicone Coolant Hose Set

ES#3575759 - 034-102-3005 - Silicone Coolant Hose Set - Complete 10-piece silicone coolant hose set for the AAN UrS4 and UrS6! - 034Motorsport - Audi

Complete 10-piece silicone coolant hose set for the AAN UrS4 and UrS6! 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
3575759
Mfg#:
034-102-3005
Ships in 2 Business Days
$436.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cooling Hose Retaining Clip - Priced Each

ES#2538001 - 1J0121142 - Cooling Hose Retaining Clip - Priced Each - Secures the radiator hose flange in place. 32mm - Febi - Audi Volkswagen

Secures the radiator hose flange in place. 32mm We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2538001
Mfg#:
1J0121142
Ships in 1 Business Day
$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Shutoff Valve Cooling Hose Kit

ES#4818159 - 06m121083jKT - Shutoff Valve Cooling Hose Kit - Replace your shutoff valve cooling hose with the new hardware - Genuine Volkswagen Audi - Audi

Replace your shutoff valve cooling hose with the new hardware

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4818159
Mfg#:
06M121083JKT
In Stock
$134.99

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

$127.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sealing O-Ring - Priced Each

ES#472463 - WHT001011A - Sealing O-Ring - Priced Each - Sealing o-ring used in various areas on your European vehicle - 12.2x1.65 - Genuine Volkswagen Audi - Audi

Sealing o-ring used in various areas on your European vehicle - 12.2x1.65 Seals the connection between the cooling hoses and the alternator. - From VIN 8E-7-085001, split is in the 2007 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
472463
Mfg#:
WHT001011A
In Stock
$3.99

This product was last offered at the strikethrough price on
05-16-2026

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Billet Aluminum Coolant Distribution Pipe

ES#4620805 - 462-121-087BB - Billet Aluminum Coolant Distribution Pipe - Replacement 3-way outlet at upper radiator hose in aluminum - iABED Industries - Audi Volkswagen

Replacement 3-way outlet at upper radiator hose in aluminum

Brand:
iABED Industries - Corporate Logo
ES#:
4620805
Mfg#:
462-121-087BB
Back Ordered
$74.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heater Core Pipe Gasket Set

ES#2574925 - 8E0898380 - Heater Core Pipe Gasket Set - Includes the necessary gaskets and clamps for your new heater core - ACM - Audi Volkswagen

Includes the necessary gaskets and clamps for your new heater core

Brand:
ACM - Corporate Logo
ES#:
2574925
Mfg#:
8E0898380
Ships in 1 Business Day
$22.00

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

$21.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Upper

ES#252441 - 8E0121070B - Radiator Hose - Upper - Includes quick disconnect piece - Feed Hose - Genuine Volkswagen Audi - Audi

Includes quick disconnect piece - Feed Hose

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
252441
Mfg#:
8E0121070B
Ships in 1 day
12% off MSRP

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

$416.99

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

$367.99 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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