WCFab X DandJ Precision 2006-2018 Cummins Billet Valve Cover Gloss Black

The Wehrli Custom Fabrication WCFab x D&J Precision Machine Billet Valve Cover is a high-performance upgrade for 2006-2024 5.9L and 6.7L Cummins engines. It's made from aircraft-quality 6061-T6 aluminum for durability and light weight. Features a baffled breather system to improve crankcase ventilation, preventing oil leakage and managing higher crankcase pressures. Includes a WCFab Engraved Cap, D&J's custom billet breather, stainless steel fasteners, and a 3/4 inch hose. Available powder coated in various colors. Not compatible with WCFab Cummins Billet Aluminum Oil Fill Cap (WCF100394, WCF100395). Requires custom ECM tuning for 2019+ models. Not CARB approved; cannot ship to California.