Each fuel vent pressure sensor is a direct-fit replacement that replaces OE damaged units which provides proper monitoring of the fuel vapor pressure in the evaporative system. The o-ring is made of Viton material for low and high pressure resistance providing a superior fuel resistant sealant. Each connector and terminal is manufactured with OE quality materials to ensure an exact fit connection, resuming peak conductivity to the engine wiring harness, and resulting in a precise engine performance. 100% pressure tested and inspected to ensure a high quality product.