Perkins original Perkins 317-5278 Diesel Engine Fuel Injector Replacement for C11 C13 Excavator Parts new injector original new injector

The Perkins 317-5278 diesel fuel injector is engineered as an OE-style replacement for Perkins C10, C11, C12, C13, and 3176C diesel engines, with the C13 series as the primary target application. It fits a wide range of heavy equipment including motor graders 14H, 140H, 143H, 160H, and 163H, wheel loader 966G II, wheel dozer 814F, compactors 815F and 816F, pipelayer 572R II, and tractor D7R II, covering construction, mining, road building, and earthmoving operations.

Manufactured to original equipment specifications, this injector delivers precision fuel metering, fine fuel atomization, and stable combustion to support balanced cylinder performance and consistent engine output. The heavy-duty construction ensures reliable operation under demanding working conditions typical of loaders, graders, compactors, dozers, tractors, and pipelayers, while the direct-fit design simplifies installation and part number cross-referencing for distributors, fleet operators, and service technicians.

For optimal service life, clean diesel fuel should be used, fuel filters replaced on schedule, and the water separator drained regularly to prevent contamination. Injector performance should be inspected when symptoms such as hard starting, rough idle, black or white smoke, low power, high fuel consumption, engine knock, misfire, or fuel dilution in engine oil appear. Fault diagnosis can include injector testing, fuel pressure testing, cylinder cut-out testing, ECM fault code reading, and part number verification. Injectors should remain in sealed packaging until installation and must not be subjected to impact, contamination, or disassembly.