Audi B8/B8.5 S4 Quattro 3.0T Water Pipe Lines

Secondary return pipe that connects to the supply pipe and the oil cooler hoses Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
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Up to the 2012 model year

Brand:

ES#:

3697692

Mfg#:

06E121044AF

$114.99

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

$111.99 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 Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

ES#:

472014

Mfg#:

N91140701

$1.99 USD

Add to Cart

Free Shipping

on orders $49 and up

Lifetime Replacement

Secondary return pipe that connects to the supply pipe and the oil cooler hoses 2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
From the 2013 model year

Brand:

ES#:

5470761

Mfg#:

06E121044AE

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. Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

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 Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

ES#:

5515606

Mfg#:

06E121065NU