Finally a high performance direct OEM replacement vacuum operated fuel valve. This vacuum operated fuel valve has the highest fuel flow of any vacuum style fuel valve on the market. These fuel valves have the same safety feature as an OEM. When the valve is left in the "On" position, with the motor off, the fuel flow will be shut off automatically. These valves feature a high quality, lustrous chrome finish. Pingel Vacuum Fuel Valves are available in H-D Metric with Adapter Nut.