Cummins 3054218 PT Fuel Injector Assembly

The Cummins 3054218 is a PTD type direct fuel feed injector designed for the Pressure Time (PT) fuel injection system used on Cummins 855 series (14 liter) diesel engines. It features a non-top-stop design calibrated for mechanical fuel delivery without electronic controls. The injector body is constructed from high-strength alloy steel with precision-machined internal components to withstand high-cycle fatigue and abrasive wear from diesel fuel. This assembly replaces Cummins OE part numbers 3018566, 3013725, 3047985, 3054213, 4914325, 4914308, 4914505, and 4914537. It is compatible with N855, NT855, NTA855, NH855, NT495, NT743, N106, and VTA 1710 engine variants. Typical applications include XCMG PD165Y bulldozers, Shantui SD22/SD23/SD32 bulldozers, Doosan excavators, TY220 Takahara bulldozers, ZY65 loaders, and stationary generator sets. Supply pressure to the injector is regulated at approximately 2 MPa by the PT fuel pump.