Weld-on tank bungs are available in 22mm male (stock on Harley-Davidson carbureted fuel tanks after 1975) or 3/8" NPT female (stock on pre-1975 Harley-Davidson fuel tanks)
Weld-on tank bungs are available in 22mm male (stock on Harley-Davidson carbureted fuel tanks after 1975) or 3/8" NPT female (stock on pre-1975 Harley-Davidson fuel tanks)