Cummins original 4062090 Diesel Engine Common Rail Fuel Injector Fit for Cummins QSK23 G3 QSX15 QSK23 QSK60 s Cross Ref No. 4088431 4076533 4902827 4077076 original new injector

Built for demanding fuel delivery duty, the 4062090 fuel injector is engineered specifically for the Cummins QSK23 series, a 23L inline 6-cylinder heavy-duty diesel engine featuring turbocharged and charge-air-cooled configuration. Rated across roughly 760 hp to 1050 hp depending on application, the QSK23 relies on six injectors per complete engine set, making this component central to combustion performance in mining, oilfield and power generation platforms.

This injector supports the HPI / MCRS fuel injection system and delivers accurate fuel delivery with stable atomization for improved combustion stability. Designed as a repair-shop friendly replacement, it offers durable service, easier installation and reduced downtime. Multiple searchable cross-reference numbers, including 4902827, 4077076, 4088431 and 4076533, simplify parts identification for global buyers, while the QSK23-focused fitment ensures dependable matching for heavy-duty maintenance programs.

Suited to mining machines, oilfield well servicing units, generator sets, rail equipment, industrial pumps, compressors and heavy construction machinery, this injector serves broad industrial demand. Before installation, confirm the old injector number, engine serial number, CPL and equipment model; ensure the injector bore, seal seat and fuel system are clean, replace seals where required, and follow the Cummins service manual for torque values and installation sequence. Perform return flow, cylinder cut-out and balance testing to confirm root cause before replacement.