original HEUI Fuel Injector 179-9380 Replacement for OEM 222-5966, Cross Reference 4CR01974, 198-6877 for 3408E 3412E 3408 3412 Tractor D10R D9R 657E 631E 637E 651E original new injector

For operations that depend on consistent diesel power, the 179-9380 fuel injector assembly provides an OEM-equivalent replacement for selected 3412 Series engines. This brand-new injector is compatible with 3412, 3412B, 3412C and 3412D engines, including marine, generator and industrial power unit configurations. Typical applications include generator sets, marine vessels, mining trucks, oilfield equipment, construction equipment and emergency backup power units.

Within the fuel injection system, the injector delivers precisely metered diesel into the combustion chamber at high pressure and timed intervals. Its nozzle atomizes fuel into a fine mist, supporting mixing with compressed air and efficient combustion. Features include a precision-machined nozzle, OEM-calibrated fuel flow, high-pressure fuel system compatibility and corrosion-resistant internal components. These characteristics support accurate fuel metering, improved combustion efficiency, better fuel economy, reduced exhaust emissions and dependable engine output, with additional benefits including reduced vibration and improved cold-start performance.

Built for industrial-grade durability and long service life under continuous operation, the 179-9380 is 100% tested and supplied in export-standard packaging. Installation requires clean fuel lines, injector-bore inspection, replacement of damaged seals, torque specifications, and leak and operation checks. Routine filter replacement, spray-pattern inspection, fuel-pressure testing and combustion analysis help maintain performance. Hard starting, black smoke, power loss, excessive fuel consumption, rough idle, misfire or abnormal combustion noise warrant injector inspection.