WCFab x D&J Precision Machine Billet Valve Covers for 2006-2018 5.9 & 6.7 Cummins are made from aircraft quality 6061-T6 aluminum and features a baffled breather system. Features a WCFab Engraved Cap and comes powder coated in your choice of color. This includes D&J's custom billet breather, all stainless steel fasteners, and a 3/4 inch hose.
