The Wehrli WCF billet valve covers for 2006–2018 Cummins are machined from aircraft-quality 6061-T6 aluminum and include a baffled breather system and WCFab engraved cap. The package comes powder coated in the listed color, includes D&J custom billet breather, stainless steel fasteners and a 3/4" hose, offering a finished billet valve-cover solution for the Cummins 5.9 and 6.7 engines.
Wehrli 06-18 Cummins WCFab X D&J Precision Billet Valve Cover - Illusion Blueberry