Petcock For HONDA ATC350X ATC 350 X 1985 1986 18x1mm Fuel Tank Switch Valve Fits: Honda 1985 1986 ATC350X 350 ATV Replaces Honda Part Number: 16950-HA5-005 Petcock thread size = M18x1(18x1mm) / 24mm hex nut / Petcock positions: ON-RES-OFF Package Includes: Petcock switch, Fuel filter pipe with screens, O-ring seal Please refer images we provided for measurements, Read product details for more information