original 10R-1264 Diesel Fuel Injector for C10 C12 3176C Engine Excavator Loader Grader Parts Replacement for OEM 317-5278 3175278 20R-0055 original new injector

Engineered for demanding diesel applications, the 10R-1264 Fuel Injector delivers OEM-level performance for the C12 Engine platform, including C12 ACERT, C12 Industrial, and C12 Marine variants. As an electronic unit injector built to precise factory calibration, it supports stable high-pressure fuel atomization for excavators, wheel loaders, mining machinery, heavy-duty trucks, marine propulsion systems, and stationary generator sets operating in continuous-duty environments worldwide.

This injector is fully interchangeable with OE reference numbers 10R-1264, 249-0712, and 222-5966, giving fleet operators, rebuilders, and industrial maintenance teams a reliable cross-referenced solution. Key engineering features include a precision-machined nozzle assembly, corrosion-resistant internal components, and OEM-standard injection calibration. Performance benefits include precise fuel metering, improved combustion efficiency, reduced fuel consumption, enhanced horsepower output, lower exhaust emissions, faster throttle response, and reduced engine knock — all contributing to extended service life and lower total operating cost.

Recommended best practices include using ultra-clean diesel fuel, replacing fuel filters on schedule, monitoring fuel pressure, and performing periodic diagnostics. Installation requires disconnecting battery power, removing the old injector, cleaning the injector bore, fitting new sealing components, torqueing to OEM specifications, priming the fuel system, and verifying leak-free operation. Ideal for B2B buyers serving construction, mining, marine, logistics, and power generation markets across North America, Europe, the Middle East, Africa, Asia-Pacific, and South America.