Cummins original High-Pressure Common Rail Electronic Diesel Fuel Injector Cross Reference 4326780 4088427, 4088428 Replacement for OEM 4326782 for Cummins QSK23 QSK60 QSB6 QSK45 original new injector

For high-horsepower diesel engine sourcing, the Cummins QSK60 Fuel Injector 4088428 is a heavy-duty injector assembly targeting the QSK60 series. It is designed to support accurate fuel metering, stable atomization, controlled injection timing, clean combustion, balanced cylinder performance, and reliable operation in severe-duty industrial conditions. On QSK60 engines with the high-pressure Modular Common Rail system, electronic control of injection pressure and timing, plus an integrated accumulator in each injector, helps reduce pressure pulsation and improve stability.

The QSK60 is a 60 L, Vee 16-cylinder engine with a 2000–2700 hp (1491–2013 kW) output range and marine and mining applications. This injector page also addresses generator set, rail, oil and gas, oilfield, and industrial power-unit demand. Public aftermarket catalogs associate 4088428 with QSK23 and QSK45 searches and group it with 4902828, 4326780, 4326781, 4928346, and 4088426. These related numbers support sourcing searches but do not constitute final fitment proof.

Because QSK60 engines may use HPI or MCR fuel systems and different ECM calibrations, compatibility should be verified before quotation or shipment. Buyers should provide the Engine Serial Number (ESN), CPL, old injector label or number, ECM calibration or code, fuel system type, and application equipment model. This confirms the actual engine configuration, supports accurate cross-number evaluation, and is especially important for QSK23 and QSK45 inquiries, where public catalog associations alone are not a fitment guarantee.