This oil pressure sensor is an electronic signal component mounted on the engine block, designed for Weichai WP2.3, WP3.7 series engines, widely fitted on FAW Jiefang light-duty trucks. It detects engine lubricating oil pressure and transmits real-time pressure signals to the engine ECU and dashboard. When the oil pressure is abnormal, it triggers the warning lamp to remind the driver and avoid engine damage caused by insufficient lubrication. The sensor adopts high-precision pressure sensitive element and metal housing, with stable signal output under high temperature, vibration and frequent working cycle. Each sensor undergoes pressure calibration and aging test before delivery. It solves the problems of oil pressure warning light false alarm, no signal and inaccurate oil pressure reading, serving as an important replacement spare part for engine maintenance.