OEM Vacuum Fuel Petcock 16951-MF5-015 For Honda Nighthawk 450 700S 20mm x 1mm
CB550SC Nighthawk - 1983. CB650SC Nighthawk - 1983-1985. CB450SC Nighthawk - 1982-1986. The size of thread is 20mm x 1mm. Fits For Honda: (Original fuel exit to the right). Fits For Honda GL500I Silver Wing Interstate - 1981-1982.