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Wehrli replacement O-ring for the Duramax L5P passenger-side intercooler pipe outlet flange seals the outlet connection used on WCFab 2017–2019 and 2020–2023 passenger-side intercooler pipe kits. Sold individually — each intercooler pipe flange requires two O-rings — this part provides the correct seal for WCFab passenger-side intercooler plumbing when replacing worn or missing flange seals.
Wehrli WCFab L5P Pass Side I/C Pipe Intercooler Outlet Flange O-Ring Seal
