Cummins original Fuel Injector 4358048 Replacement for OEM 4964171, Cross Reference 4924587, Fits QSL9.3 ISL9 Engines for Construction Machinery Excavator, 4928106 original new injector

For sourcing teams responsible for QSK large-engine repairs, the Cummins 4358048 diesel fuel injector offers a well-defined reference for heavy-duty common rail fuel injection. Public supplier listings associate this injector family with Cummins QSK19, QSK38 and QSK50 engines. In operation, the injector receives pressurized diesel fuel, controls injection timing and quantity, atomizes the fuel into fine droplets and delivers it into the combustion chamber. Correct injection supports smooth starting, steady idling, rated power output, lower smoke and maintained fuel efficiency.

Detailed application coverage includes QSK19 CM2350 K105 and K114, QSK38 CM2350 K125 and K138M, and QSK50 CM2350 K108 and K130. Related references include 4380190, 5375441, F00BJ00042, Y431K05857 and Y431K06139, together with listed NX, PX and RX variants. These numbers support database matching and inquiry capture; they do not establish unconditional interchangeability. Before ordering, buyers should provide the ESN, CPL, original injector number and tag photo, Bosch number, engine model, ECM or control system, fuel-system type and equipment model.

For B2B supply, the product combines high-pressure fuel delivery, precision atomization and stable load response with repair-shop usability, full-set supply potential, testing support, export packaging and global aftermarket availability. It can be offered for generator sets, mining equipment, construction machinery, marine engines, oil and gas equipment, rail-related engines and industrial power units, subject to final compatibility confirmation.