Audi B8/B8.5 S5 Quattro 3.0T Cabriolet Water Pipe Return Lines

Main return pipe that connects to the heater core hoses and the engine. Made from high-grade Aluminum vs OEM Plastic! 2X Entries Into Our F80 M3 Sweepstakes
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Brand:

ES#:

4376374

Mfg#:

06E 121065N

$59.99 USD

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on orders $49 and up

Lifetime Replacement

Main return pipe that connects to the heater core hoses and the engine For vehicles up through the 2012 model year only. (Pre-Facelift)

Brand:

ES#:

4617002

Mfg#:

06E121065Q

10% off MSRP

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

$103.99

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

$93.99 USD

Add to Cart

Free Shipping

on orders $49 and up

Lifetime Replacement

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

Brand:

ES#:

280786

Mfg#:

06E121065N

19% off MSRP

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

$131.65

This product was last offered at the strikethrough price on
09-14-2026

$106.38 USD

Add to Cart

Free Shipping

Lifetime Replacement

Main return pipe that connects to the heater core hoses and the engine 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:

ES#:

4899633

Mfg#:

06E121065N

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