Caterpillar original OR-3051 Remanufactured Fuel Injector Replacement for 3512A Series Diesel Engine Parts 7E-3383 7C-0345 7C-4175 7E-9983 original new injector

The Caterpillar OR-3051 fuel injector is engineered for heavy-duty diesel applications requiring precise fuel delivery and dependable combustion performance. Designed as a direct replacement for CAT 3512A, 3512, 3508, 3508C, and 3516 engines, this single-port high-pressure direct diesel injector is manufactured using industrial precision machining, alloy steel construction, and corrosion-resistant surface treatment. Multi-point calibration ensures consistent spray pattern, stable injection pressure, and optimized fuel atomization across the engine's operating range.

This injector is widely deployed in CAT-powered gensets, industrial power units, petroleum module installations, marine propulsion systems, and mining power platforms. It is trusted across power generation, marine, oil & gas, and mining sectors throughout North America, Europe, the Middle East, Asia, and Africa. The unit delivers optimized fuel delivery, improved combustion efficiency, reduced soot formation, and enhanced overall engine performance. Available in both new and remanufactured configurations, it provides a flexible supply solution for OEMs, distributors, and fleet operators.

Routine maintenance includes periodic visual inspection, filter replacement at scheduled intervals, and injector spray and flow testing. Installation requires a clean fuel system, the use of new sealing components, torque application per CAT specifications, fuel system bleeding, and operational verification under both idle and full load conditions. Typical failure indications such as hard starting, black or white smoke, power loss, and uneven idle are commonly linked to injector wear, leakage, or blockage, making timely replacement essential for sustained engine reliability.