The Wehrli billet aluminum oil fill cap for 1998.5–2024 Cummins Dodge Ram 5.9L and 6.7L engines is a CNC-machined direct OEM replacement, not a cover. Finished in clear anodize, it includes an O-ring seal and installs in seconds to tidy the engine bay. Made in the USA, it is a complete cap intended to replace the factory plastic fill cap; compatibility with some aftermarket billet valve covers may vary.
Wehrli 98.5-23 Cummins Billet Aluminum Clear Anodized Oil Fill Cap