Savior Fuel Tank Switch Valve Petcock for Honda ATC250ES ATC250SX ATC350X TRX250 TRX250X TRX300 TRX300EX TRX200SX Fourtrax 1985 1986 1987 1988 High quality Fuel Switch Fit Honda TRX and ATC Series Bikes Petcock Outlet OD is 7mm Nut threading is 18mm x1mm Hex nut is 24mm