Cummins original Replacement for OEM Common Rail Fuel Injector 4326780, compatible with QSK60 engine, cross reference to 4326781, for engineering machinery diesel engine parts original new injector

Positioned for Cummins QSK60 high-horsepower applications, fuel injector 4326780 is an original-new common-rail diesel injector offered as an original OE-reference replacement. It serves as a precision fuel-metering component within the diesel fuel system. Cummins identifies the QSK60 as a 2000–2700 hp platform for marine and mining use. On applicable versions, the High Pressure Modular Common Rail system electronically controls injection pressure and timing, while an integrated accumulator in each injector helps reduce pressure pulsation and improve fuel-system stability.

Primary sourcing references include 4326780PX, 4088427, 4088427PX, and 4088427NX. Numbers including 4326781, 4088431, 4902827, 4010160, 4984457, 4954801, 4088426, and 4026779 are broader market search references, not confirmed universal interchanges. Subject to verification, potential equipment uses include QSK-powered mining trucks and equipment, marine main engines and auxiliary generators, diesel generator sets, data-center backup generators, oilfield power units, rail engines, and stationary industrial power systems.

Because public aftermarket listings vary, final fitment should be confirmed before quotation or shipment. Buyers should provide the engine model, engine serial number, CPL number, old injector number, injector and engine-nameplate photos, fuel-system type, application, required quantity, and condition requirement. Correct matching is especially important for this high-value industrial engine: an unsuitable injector may contribute to poor combustion, black smoke, low rail pressure, misfire, rough running, fuel dilution, or engine damage. ESN, CPL, fuel-system, and old-label verification therefore remains essential.