Cummins original Replacement for OEM 4326640 HPI Diesel Fuel Injector for QSK60 QSK45 QSX23 Engines Industrial Generator Mining Cross Ref 4088416 4088427 4326780 original new injector

Engineered for high-load diesel platforms, the Cummins 4326640 fuel injector delivers precise fuel metering and stable high-pressure injection across the QSK23, QSX23, and QSK60 engine series. Built for the 23 L inline 6-cylinder architecture rated 760–950 hp / 567–708 kW and 2558–2897 lb-ft torque, this injector supports generator ratings from 545–725 kW prime and 600–800 kW standby, making it a dependable service part for continuous industrial duty.

This injector is designed for durable construction, electronic control compatibility, consistent spray pattern, effective leakage control, and improved combustion efficiency to protect the engine under demanding conditions. Broad cross-reference coverage—including 4087977, 6560-11-1114, 6560-11-1414, 4326639, 4088427, 4928349, 4902817, 4984457, 4326784, 4954374, 362744RX, and 4010025—simplifies sourcing for distributors and maintenance teams and enables fast replacement in field service scenarios.

It is suited to oilfield service, generator maintenance, mining equipment repair, construction machinery, marine auxiliary power, and engine rebuild operations. Service life depends on clean fuel, correct filtration, water control, sound wiring, and proper installation; scheduled fuel filter changes, water separator draining, injector harness inspection, return flow testing, and ECM fault-code scanning support reliable performance. Final compatibility must be confirmed by ESN, CPL, original injector number, and injector photo before ordering.