Product Specification

original 317-5279 20R-0055 295-9085 10R-0961 212-3469 350-7555 317-5278 Diesel Injector for C13 Excavator Replacement for OEM new injector original new injector

Engineered specifically for C12 and C10 diesel engines, the 317-5279 common rail fuel injector delivers OEM-style fitment and precision fuel metering to support reliable combustion under heavy-duty operating conditions. The unit is built with a robust internal solenoid valve and a precision-machined nozzle that ensures stable injection pressure, consistent fuel atomization, and accurate injection timing across the full engine RPM range. Each injector is individually tested for flow rate, internal and external leakage, spray pattern geometry, solenoid response time, and overall injector performance to meet the demanding requirements of professional engine service, remanufacturing programs, and direct replacement applications. The injector cross-references with part numbers including 229-5918, 212-3462, 10R-0961, 10R-0963, 10R-1258, 0R-4987, 0R-9530, 161-1785, 166-0149, 203-3464, 212-3469, 223-5328, 10R-1003, 10R-1814, and FS10R1814, allowing distributors, fleet operators, and service workshops to consolidate global cross-number searches and reduce inventory complexity.

This injector is widely used in heavy-duty trucks, construction machinery such as excavators, loaders, and bulldozers, road construction equipment, diesel generator sets, mining and quarry machinery, off-road diesel equipment, marine auxiliary engines, and industrial diesel power units equipped with confirmed C12 or C10 engines. The remanufactured version follows OEM hardware specifications and is suitable for engine overhaul, cylinder head repair, and full fuel system service where consistent injection quality is required to restore original engine performance, reduce exhaust smoke, and improve fuel economy under continuous industrial load.

Correct installation is critical to long injector life and stable engine operation. Before fitting, always confirm the injector part number, verify the engine serial number, clean the injector bore, and replace all copper washers, seals, and O-rings with new components. Lubricate the seals with clean diesel fuel, carefully insert the injector to avoid nozzle tip damage, and tighten the retaining clamp or stud to the torque value specified in the official service manual. After installation, prime the fuel system, bleed air from the high-pressure lines, and run the engine to check for leaks, abnormal smoke, misfire, rough idle, or active diagnostic fault codes. Routine maintenance should include the use of clean diesel fuel, regular replacement of fuel filters, draining of the water separator, and periodic injector balance and return flow testing to keep the C12 or C10 engine running at peak efficiency.