Cummins original 4905880 Engine Injector for QSZ13 Truck Diesel Fuel Injectors Common Rail Injector Replacement for OEM 5491600 4326959 2872544 Truck Engine Parts original new injector

Engineered for the Cummins ISZ13 13-liter platform, the 4397488 diesel fuel injector delivers precise fuel metering managed by the engine ECM for stable operation across the ISZ425 through ISZ525 power range. This electronic high-pressure unit is built for full XPI fuel-system compatibility, maintaining an engine-specific calibration relationship that supports controlled atomization, correct spray distribution and reliable combustion throughout demanding duty cycles.

Constructed to withstand the cylinder-head and combustion environment, the injector features heat-resistant construction, high-cycle durability for heavy-duty commercial engines, and controlled internal leakage that preserves correct system pressure and return flow. Sealed fuel connections guard against external leakage, while diagnostic compatibility with cylinder-contribution tests, rail-pressure analysis, electrical testing and return-flow testing simplifies fleet servicing. Part-number traceability and protective packaging against contamination and mechanical damage safeguard component integrity.

Applicable to Dongfeng Cummins DCEC ISZ13 inline six-cylinder engines rated approximately 425 to 525 horsepower under Euro IV and Euro V configurations, this injector serves tractor trucks, dump trucks, vocational and cargo vehicles, bus chassis, fleet overhaul engines and repower projects. Market cross-reference numbers include 2874505, 2872209, 4955080, 4921827, 2872331, 4928421, 2872069, 2897414 and 4327072. Compatibility must be verified by engine serial number, CPL, original injector number, engine nameplate and connector configuration before installation.