Cummins 4025299 Fuel Injector Assembly

The Cummins 4025299 fuel injector is a mechanical unit injector component designed for the 8.3 liter C-series diesel engines. It features a 5-hole nozzle configuration with a thread size of M14 x 1.5 and a 14 mm fuel inlet fitting. The injector is calibrated for non-certified mechanical engine applications including the 6CT, 6CTA, ISC, and QSC platforms rated from 350 to 450 HP. This assembly includes the nozzle holder body, control valve, spring, and nozzle tip. It is flow-matched to OE standards to ensure precise fuel atomization and combustion efficiency. Cross-references include Cummins part numbers 3802851, 3897205, 4078400 and Bosch part number 0 432 191 352. Supplied with nozzle washer and return line washer for installation.