Caterpillar original  10R-1279 Common Rail Diesel Fuel Injector for 3512B 3516B Engine, Replacement for OEM, High Pressure Fuel Nozzle, new original new injector

Engineered to OEM specifications, the Caterpillar 10R-1279 mechanical fuel injector delivers precise fuel atomization and consistent injection pressure for CAT 3512B, 3516B, 3508B, 3512C, 3516C, and 3508C diesel engines. Manufactured from high strength alloy steel with a hardened nozzle assembly, this injector is built for industrial grade reliability and long service life under heavy duty operating conditions. Each unit undergoes factory flow testing and calibration verification to ensure stable engine power output and excellent fuel economy across demanding applications.

This fuel injector is fully compatible with a wide range of Caterpillar powered equipment, including diesel generator sets, prime and backup power stations, marine propulsion engines, tug boats, cargo ships, offshore vessels, mining trucks, haul trucks, drilling rigs, fracturing units, and large construction machinery. The direct cross reference coverage with part numbers 170-5185, 212-3467, and 249-0713 provides flexible sourcing for fleet maintenance, engine overhaul, and field replacement requirements in global export markets.

Proper installation requires cleaning the fuel system, replacing sealing washers, and following Caterpillar torque specifications to maintain injection performance and prevent leakage. Routine inspection of fuel lines, exhaust smoke, and fuel consumption is recommended to identify early signs of nozzle wear or atomization issues. With a 12 month warranty and global supply availability, the 10R-1279 injector offers a dependable OEM equivalent solution for operators seeking reliable fuel system components for Caterpillar industrial, marine, mining, oilfield, and power generation equipment.