Outfit your semi to be Ready for the Road Ahead™ with optimal oil levels, with the Dorman Brass Female Oil Pressure Sensor. Due to its ability to monitor the pressure of a vehicle's oil pressure, this replacement piece is able to alert a driver when oil pressures reach too high or too low of levels. Constructed with a durable design to withstand extreme pressures and temperatures. FleetPride is your First Click in Heavy Duty®.