original 317-5278 Diesel Engine Fuel Injector for C10 C12 Excavator Common Rail Injector Assembly 10R-0960 10R-0967 20R-0055 3175278 original new injector

Engineered as a direct replacement for the 317-5278 injector family, this heavy-duty EUI diesel fuel injector serves C10, C12, 3176C, and 3196 engine platforms used across earthmoving, construction, mining, and generator applications. It is supplied as a reman or replacement unit with cross-reference compatibility to 317-5278, 20R-0055, CA3175278, CA20R0055, 208-9160, 170-5240, 350-7555, 707213AT, 10R-0963, 153-7923, and 10R-1264, enabling accurate multi-number sourcing for professional repair shops and fleet operators.

The injector delivers precision fuel metering and the correct spray pattern to support stable combustion, reduced smoke, and consistent power output. Its heavy-duty construction is designed for demanding duty cycles on 14H, 140H, 143H, 160H, and 163H motor graders, 815F and 816F compactors, 966G and 966G II wheel loaders, 814F wheel dozer, D7R and D7R II track-type tractors, 572R II pipelayer, and C12 industrial and generator engines. Export-ready, sealed anti-rust packaging protects nozzle tips and electrical connectors during long-distance shipment and storage.

To ensure correct fitment, buyers should confirm original injector number, engine serial number, and arrangement number before ordering. Recommended service includes clean diesel fuel, scheduled filter replacement, water separator draining, injector leakage and return-flow testing, and replacement of seals, O-rings, and washers during installation to prevent hard starting, rough idle, black or white smoke, misfire, and high fuel consumption.