Oil Filler Cap Return Port

Dodge 3.0L EcoDiesel Oil Filler Cap w/ Swivel Return Port

Dodge Cummins Oil Filler Cap w/ Swivel Return Port

Duramax Oil Filler Cap w/ Swivel Return Port

Ford 6.7L Oil Filler Cap W/ Swivel Return Port

Perkins Oil Filler Cap w/ Swivel Return Port

Toyota Oil Filler Cap W/ Swivel Return Port

VW, TDI, BMW, Audi, Mercedes, Sprinter Van Oil Filler Cap w/ Swivel Return Port (Version 1)

VW, TDI, BMW, Audi, Mercedes, Sprinter Van Oil Filler Cap w/ Swivel Return Port (Version 2)