Fit Perfectly: Engine oil pressure sensor switch fit for Cummins Onan QG Generator HGJAA / HGJAB / HGJAC / HGJAD / HGJAE / HGJAF and Others, fit all EH650V gas engines, replace 187-6265Pressure Signals Activation: Engine oil pressure indicator switch triggers alarm signals to notify operators or automatically initiates protective measures such as shutdowns or switching to backup systems when low oil pressure is detectedOil Pressure Level Detection: Engine oil generator pressure switch continuously monitors oil pressure levels to ensure they remain within the preset operating range, ensuring smooth operation of the gas engine or generator engineIdeal Malfunction Solution: Engine oil pressure monitor switch solves problems such as engine failure due to low oil pressure, abnormal engine noise or vibration, engine overheating, premature engine wear, unexpected engine shutdownPremium Materials: Engine oil pressure switch is made of high-quality materials with good electrical conductivity, resistant to wear and heat, can withstand harsh conditions including exposure to changing temperatures and vibrations