Lucky Seven Motorcycle Oil Plug is a direct replacement for your stock Harley oil plug used on all Evolution and Twin Cam Softail models. Of course these chopper parts can fit bobbers and most custom motorcycles using the same type of oil tank. Head is made out of billet aluminum, while dipstick is stainless steel. Two o-rings prevent leaking. Looks great alone or combined with our Lucky Seven Choke Knobs, Lucky Seven Risers and Lucky Seven Jockey Shifter Knob.