This pressure sensor fits Cummins ISX and QSX X15 engines. It is designed to accurately measure air intake and fuel pressure, ensuring optimal engine performance. The sensor is made in China and has OE/OEM part numbers of 3330998, 3408377, and 4921499, making it compatible with various models. The manufacturer part numbers for this sensor are also 3330998, 3408377, and 4921499. This sensor is a crucial component for any engine owner looking to maintain optimal performance.