Offered in two styles with your choice of cap finish.
Custom lathed in brass and/or billet aviation 6061t aluminium for cap and thread adaptor. Ripple style has three concentric circles on the top of the cap spun out on the lathe. Smooth top is flat and is suitable for custom engraving.
Sides of the top cap have been knurled for extra grip – the lower threaded part of the cap in aluminium has a spring bound valve system centrally located in the middle of the bung. This connects to vents in the top part of the cap to allow alleviation of any pressure that may build up inside the tank. It also comes with a gas-resistant o-ring seal that sits on the top of the thread.
Standard right hand thread cap with standard 6mm thread pitch.
FITS ALL HARLEY DAVIDSON : 1983-Present with regular threaded fuel bung type fitment.