Replace your trucks brittle plastic crankcase vent assembly (GM 97357033) with these billet pieces from DHD. Converting your truck to billet fittings and AN hose will eliminate the oily leaks prevalent with the OE vent system.
Our valve cover fittings are machined out of a single piece of aluminum stock and have a pre-installed o-ring for a 100% seal-tight fitment. This fitting set has (-8AN) JIC37 Outlets.
LLY, LBZ, LMM
Machined PCV fittings w/O-rings(2)
Venting your engine properly is imperative to engine performance and longevity. Venting your crankcase vapors in any manor that does not replicate the OE system may be viewed by the EPA as a violation.