Cummins Injector QSK23 4087977 4902827 HPI Diesel Fuel Injector For QSX23 QSK23 Engine Mining Excavator Dump Truck Spare Parts Original New Injector

Product Detail Page Description 4087977 Fuel Injector Assembly for Cummins QSK23 / QSX23 / QSK Series Diesel Engine The 4087977 fuel injector is a heavy-duty diesel injector assembly commonly listed for Cummins QSK23 / QSX23 / QSK60 engine applications in aftermarket catalogues. The strongest directly reported cross number is 4326640. Some supplier catalogues also group 4087977 together with 6560-11-1114 and 6560-11-1414 for Cummins QSK23 / QSK60 applications, but these grouped numbers must be verified before substitution. Public listings also show 4087977 as a Cummins injector for QSX23 excavator engine applications and identify 4326640 as an OEM / cross number. The Cummins QSK23 is a 23 L inline 6-cylinder heavy-duty diesel engine with 760–950 hp / 567–708 kW output range and a High Pressure Injection HPI fuel system. Cummins states that the QSK23 high-pressure injection system works up to 29,000 psi, and QSK23 G-Drive engines use the Cummins HPI-PT full-authority electronic fuel system. Important buyer note: 4087977 should not be ordered by number alone. QSK / QSX injectors can vary by engine serial number, CPL, ECM version, emission level, fuel system, and equipment configuration. Always confirm by engine serial number, old injector number, injector body marking, engine nameplate, CPL, equipment model, and injector photos before shipment.