This AXIOMPART 3447391 common rail pressure sensor is designed for compatibility with a range of backhoe loader models including 420F, 428F, 430F, 432F, 434F, 444F, and 450F equipped with C4.4 and C3.3B engines. This precision-engineered sensor monitors and regulates fuel pressure in the common rail fuel system, helping maintain optimal engine performance and efficiency. The robust construction features a threaded brass fitting and durable electrical connector, ensuring reliable operation under demanding conditions. This replacement part matches OEM specifications for seamless integration and functionality. Essential for maintaining proper fuel delivery and engine operation, this sensor helps prevent performance issues that could arise from inaccurate pressure readings. Installation should be performed by qualified technicians following proper torque specifications and electrical connection procedures to ensure correct functionality.