39875539 Pressure Sensor for Ingersoll Rand Air Compressor Replacement Pressure Transducer 24571309 5VDC.The fuel rail sensor, commonly referred to as the Fuel Pressure Sensor, it is installed at one end of the oil rail to measure the fuel pressure in the common rail pipe. The sensor is a part of vehicles fuel system and designed to monitor the fuel pressure that is present at the fuel rail.It sends this signal to the ECU, which then uses it to make adjustments to the vehicle s fuel and timing. When the sensor has an issue it can cause problems with the performance of the vehicle. Quality Guarantee :1 year, and strictly in accordance with the standard quality inspection The products are 100% new and carefully packed. 1.Name: Fuel Pressure sensor,Fuel high Pressure sensor .