Audi B8/B8.5 S5 Quattro 3.0T Coupe Engine Coolant Lines

Connects the expansion tank hose to the lower radiator hose

Brand:

ES#:

1598005

Mfg#:

8K0121071J

8% off MSRP

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

$227.99

This product was last offered at the strikethrough price on
10-08-2026

$208.99 USD

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Lifetime Replacement

Main return pipe that connects to the heater core hoses and the engine 2X Entries Into Our F80 M3 Sweepstakes
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Brand:

ES#:

4899633

Mfg#:

06E121065N

Connects supply/return cooling lines to the supercharger 2X Entries Into Our F80 M3 Sweepstakes
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Brand:

ES#:

4809955

Mfg#:

06E121083N

$114.99 USD

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on orders $49 and up

Lifetime Replacement

Used on Main return pipe that connects to the heater core hoses and the engine

Brand:

ES#:

472014

Mfg#:

N91140701

$1.99 USD

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Lifetime Replacement

Secondary return pipe that connects to the supply pipe and the oil cooler hoses 2X Entries Into Our F80 M3 Sweepstakes

Brand:

ES#:

5470761

Mfg#:

06E121044AE

Secures the coolant temperature sensor in place We Price Match - Give Us A Call or Chat!

Brand:

ES#:

2865558

Mfg#:

025121142

$3.99 USD

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Lifetime Replacement

Direct OE-quality replacement hard plastic coolant pipe to cure persistent coolant leaks, prevent catastrophic overheating, and ensure reliable coolant flow to your vehicle's heat exchanger.

Brand:

ES#:

5492610

Mfg#:

06E121065N

Permanently solve a notorious Audi V6 cooling system weak point by replacing the failure-prone factory plastic heater pipe with this upgraded aluminum version. 2X Entries Into Our F80 M3 Sweepstakes

Brand:

ES#:

5515606

Mfg#:

06E121065NU