Now you can dress up your trucks engine bay and virtually eliminate oil cap blow-off. This new billet milled aluminum Oil Filler Cap features an easy grip to assist you when installing and removing between tight engine spaces. It's also been designed with a secure cam-lock fit to match your OEM or aftermarket filler neck and ensure it stays in place. Includes Viton O-ring. OEM Part #97216410, 97350955 2001-2016 6.6L OEM Part #12677347 2017-2023 3.0L OEM Part #55510927 2020-2023