Cummins 3052255 PTD Fuel Injector Assembly

Cummins 3052255 is a Pressure Time Delivery (PTD) type fuel injector designed for the Cummins K-series heavy-duty diesel engines, specifically the KTA38 and K38 engine families. It operates within the PT fuel system utilizing K-STC (Step Timing Control) injection technology. Key technical parameters include an injection quantity range of 140 to 366 mm³ per stroke and a unit weight of 1.6 kilograms. The injector is designed for direct-fit installation on engines such as KTA38-GC, KTA38-G2, KT38-G, KT38-DM, and KTA38-P780 variants. Primary applications include heavy-duty mining trucks (e.g., Beiqi Foton/Northern Shares platforms), marine generator sets, and industrial power generation units. This injector matches PT fuel pumps including part numbers 3165400, 3655631, 3074835, 4951361, and 4951480. Cross-reference interchange numbers include Cummins genuine remanufactured numbers 3052255PX and 3052255R, as well as OEM casting numbers 4903319, 4307475, and 4993482.