Sinotruk WG1034121136 Differential Pressure Sensor Assembly

The WG1034121136 (manufacturer reference 31MPP16-7) is a differential pressure sensor designed for diesel particulate filter (DPF) monitoring on Sinotruk HOWO series heavy-duty trucks. It measures the pressure drop across the DPF substrate to determine soot accumulation levels, enabling the engine control unit (ECU) to initiate regeneration cycles. The sensor features a robust housing rated for high-temperature exhaust environments and a sealed electrical connector resistant to vibration and moisture ingress. It operates on a 5V supply voltage typical for automotive sensor interfaces, outputting a ratiometric signal proportional to differential pressure. Primary applications include Sinotruk HOWO A7 and T7H models equipped with MAN D20 or D26 Euro IV/V/VI engines, as well as Shandeka variants. The component is a direct OEM replacement for Sinotruk part number WG1034121136. Installation requires verification of the specific engine calibration and exhaust piping configuration to ensure accurate pressure transduction.