Industrial 815425T Oil Pressure Sensor

Industrial 815425T Oil Pressure Sensor is an aftermarket oil pressure sending unit designed to replace the OEM 815425T on MerCruiser/Volvo Penta gasoline engines. It is listed across marine catalogs and retailers as an interchange for OEM numbers including 3857532 and 8M0068784, confirming compatibility with the 815425T family and its cross references. This sensor targets MerCruiser/Volvo Penta V6 and V8 stern‑drive engines from the late 1980s through the 1990s, including 3.0L (1990–1995), 4.3L (1993–1998), 5.0L (1988–2001), 5.7L (1988–2001), and 7.4L MPI (1991–2000) configurations, making it a common replacement during repower or maintenance of older boats. It performs the essential function of monitoring engine oil pressure and feeding a signal to the instrument cluster or gauge, helping operators detect pressure fluctuations early and protect the engine’s lubrication system.