Replace the ugly yellow plastic OEM oil fill cap with the sexy billet oil fill cap from PERRIN. *Complete your Engine Bay* The PERRIN Aluminum oil cap is the perfect way to complete your engine bay. The simple design of our Oil Cap is the finishing touch to your engine bay leaving a clean and tasteful look. *Finish & Construction* Machined from 6061 Billet aluminum, the PERRIN oil cap has a textured finish and is hard anodized in a black or silver finish for corrosion protection. For added convenience, the cap features a finger-pocketed grip exterior for easy removal and installation.