This practical oil pressure sensor is a perfect fit for 403 series small diesel engines. It constantly tracks actual lubricating oil pressure and transfers accurate data to the engine control system. It helps users spot abnormal oil pressure promptly and avoid unnecessary engine wear and faults. Made of high-temperature resistant materials with fine sealing treatment, it maintains stable working state during long running time. Manufactured according to OEM specifications, it features good compatibility, fast response speed and long service life for daily engine maintenance.