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WCFab x D&J Precision billet valve covers for 2006–2018 5.9 and 6.7L Cummins are machined from 6061‑T6 aluminum and include a baffled breather system for proper ventilation. Finished in Brizzle Blue, each set ships with a WCFab‑engraved cap, D&J custom billet breather, stainless fasteners and a 3/4" breather hose to dress the engine bay with durable hardware.
Wehrli 06-18 Cummins WCFab X D&J Precision Billet Valve Cover - Brizzle Blue
