Cummins 3010510 Injector O-Ring Seal

The Cummins 3010510 is a precision-molded injector O-ring seal designed for high-pressure fuel injection systems in Cummins heavy-duty diesel engines. Manufactured to OEM specifications, this seal ensures leak-free sealing at the injector nozzle interface under extreme combustion pressures and temperatures. It is constructed from high-grade fluoroelastomer (FKM/Viton) compounds resistant to diesel fuel, oil, and thermal degradation. This component serves as a direct replacement for Cummins OEM part numbers 3010510 and 144967. It is engineered for compatibility with Cummins K19, KT19, KT1150, KTA38, KTA50, M11, N14, QSK19, QSK23, QSK38, QSK50, and QSK60 engine series. Applications span heavy-duty trucks, construction machinery including excavators and dump trucks, marine propulsion, and power generation units. Sold individually or in kits for complete injector service.