Cummins original QSK23 SA6D170 Diesel Engine Fuel Injector 6560-11-1414 6560111114, Cross Reference 4902827, 4088431, Construction Machinery Excavator Parts Replacement for OEM original new injector

Built for severe-duty diesel service, the 6560-11-1414 fuel injector assembly is positioned for Cummins QSK23 and Komatsu SAA6D170E engine families. Also searchable as 6560111414, it is identified by Komatsu as an injector assembly and marketed as a nozzle holder injector. This industrial replacement component supports mining, construction, generator set, oilfield power unit, and industrial engine repair applications. Equipment coverage includes large excavators, mining trucks, wheel loaders, dozers, crushing and mining power modules, and industrial stationary engines.

In QSK23 / SAA6D170E diesel systems, the injector receives fuel, controls delivery, and injects diesel at high pressure, atomizing it into a fine spray to support stable cylinder combustion. Correct fuel quantity and timing are essential; incorrect spray pattern, sealing, or flow rate may cause black smoke, hard starting, rough idle, high fuel consumption, low power, or cylinder damage. Its industrial-grade features include a heavy-duty injector body, precision fuel metering, fine atomization, and high-temperature resistance. The QSK23 is a 23-liter inline six-cylinder engine family using High Pressure Injection; G-Drive information identifies the fuel system as Cummins HPI-PT full-authority electronic.

For procurement, all related catalogue numbers are search and matching references only, not a blind-fit guarantee. Because numbering can overlap across Komatsu, Cummins, and aftermarket catalogues, confirm fitment before ordering using the removed injector number, engine serial number, CPL, equipment model, parts manual, engine arrangement, and injector photos.