OER TR9B593B Features:

New reproduction 2-port design fuel tank vapor valve for various 1990-97 Ford truck models. This fuel tank vent valve is designed to match the fit and function of the original valve on specified vehicles, and is engineered for durability and reliable performance. The vapor valve assembly mounted on top of the fuel tank is used to control the flow of fuel vapor entering the fuel tank delivery line, which conducts vapor forward in normal circumstances. If due to extreme conditions, excessive pressure is generated inside the tank, the purge port opens, allowing fuel vapor to escape, stabilizing tank pressure. The valve assembly has a head valve which prevents the tank from overfilling during refueling, and has a spring supported float assembly which prveents liquid fuel from entering the vapor delivery line while traversing steep grades or in the event of a rollover accident.