Cummins original Fuel Injector Assembly 4088427 for QSK60 QSK45 QSK30 CM500 Diesel Engine Parts, Replacement for OEM 4088428, Cross Reference 4001813, 4326780 for Excavator original new injector

For high-horsepower diesel engine sourcing, the Cummins 4088427 is a heavy-duty fuel injector/unit injector primarily positioned for QSK60 applications and commonly listed for common rail configurations. Its strongest related reference is 4326780, supported by suffix references 4088427PX, 4088427NX and 4326780PX. This reference set helps distributors, rebuilders and maintenance buyers match RFQs and narrow preliminary sourcing options without relying on engine model alone.

The associated QSK60 platform is a 60.2 L V16 diesel engine rated at 2000–2700 hp for selected applications. On selected versions, the Modular Common Rail system electronically controls injection pressure and timing. Subject to confirmed fitment, the injector can serve mining trucks and equipment, marine main engines and auxiliary generators, diesel generator sets, data center backup power, oilfield equipment, rail engines and stationary industrial power units. Supplier data also associates the number with QSK45/QSK60 injector listings, extending its relevance across heavy-duty parts inventory and engine rebuild projects.

Final fitment requires verification because injector versions can vary by fuel system, power rating, emissions configuration and build year. Before ordering, buyers should provide the engine model and serial number, CPL number, old injector number, injector and engine nameplate photos, fuel system type, application, quantity and required product condition. Confirmation against the ESN, CPL and old injector label is essential before shipment, particularly when using broader market-associated cross references.