4.0t 1-piece Aluminum Rear Water Neck

These 6061 100% Aluminum Water Necks are made to upgrade and replace the 2-piece plastic leaky water necks on the back side of the Audi 4.0t engine.  Often, as these cars age the fittings begin to leak, are generally a nuisance and require replacement.

Because these are made of 6061 aluminum, they also will not be effected by the heat of nearby piping for upgraded Single and Twin Turbo upgrades, allowing you to route piping closer to the cylinder head for better fitment.

Available in both C7 (90* bent) and D4 (Straight) configurations.  Comes with o-ring seal, and factory style pinch clamp.