Cummins original 4076533 Diesel Engine Fuel Injector Replacement for Cummins QSK23 QSK23 G3 QSK60 SAA6D170E Fits PC1250 Equipment Matches Part Nos. 4088431 4902827 4062090 original new injector

Engineered for demanding heavy-duty power applications, the 4076533 Fuel Injector delivers precise fuel metering and reliable performance across the Cummins QSK23 and QSK19 diesel engine platforms. Built for the High Pressure Injection (HPI) fuel system, this injector assembly supports the QSK23's 23-liter inline 6-cylinder architecture rated at 760–950 hp / 567–708 kW, with injection pressures operating up to 29,000 psi. It is fully compatible with QSK23 CM2250 K109, QSK23 CM500, QSK19 CM500, K19 and G-Drive HPI-PT full-authority electronic fuel systems.

Designed with heavy-duty construction, fine atomization, heat resistance and dependable sealing, the 4076533 ensures consistent combustion and optimized fuel efficiency under continuous industrial loads. Cross-reference support covers 4088431, 4087889, 4088431NX, 4088431PX, 4087889RX, 4902827, 4062090, 4077076 and 6560-11-1114, simplifying sourcing for fleet maintenance and spare-parts inventory. Premium remanufactured and set-of-6 supply options are available with export-ready packaging.

Ideal for large mining excavators, generator sets, oilfield power units, crushing modules, rail and intermodal units, construction machinery and marine auxiliary power, this injector serves global markets including North America, Latin America, the Middle East, Africa, Southeast Asia, Australia, Europe and Central Asia. Recommended maintenance focuses on clean fuel, timely filter replacement, water separator care, ECM diagnostics and preventive injector replacement for maximum service life.