original Diesel Engine Fuel Injector 20R-4147 Cross Reference 198-6877 for 3142E 3412 3408 Fuel Injector Pump Replacement for OEM 232-1168, 232-1171 original new injector

Built for demanding diesel operations, the 20R-4147 fuel injector is an original OEM-standard component for 3412, 3412B and 3412C engines. It cross-references 10R-7222, 331-8770 and 0R-4171, simplifying parts identification for maintenance teams and distributors. Its industrial application coverage includes mining and construction equipment, marine vessels, power generation units, compressors and other heavy equipment.

The injector meters diesel into the combustion chamber at controlled pressures and timings, while its high-pressure nozzle atomizes fuel into fine droplets. This process supports complete combustion, reduced smoke and emissions, maximum torque output and improved fuel efficiency. Precision-machined nozzle tips promote uniform spray, and the high-grade alloy steel construction provides wear and corrosion resistance for continuous heavy-duty service. The injector is compatible with industrial diesel and biodiesel blends and operates with the engine’s camshaft or ECU-controlled injection timing.

For installation, the fuel system should be clean, the injector pre-lubricated with clean diesel oil and the mounting bolts tightened to 35–40 Nm. Correct tip alignment and diagnostic-bench verification of the spray pattern are recommended before engine installation. Regular fuel-filter cleaning, nozzle-wear inspections and high-quality diesel help prevent clogging and preserve performance. The stated service replacement interval is 20,000–30,000 operating hours, with troubleshooting guided by OEM service manuals. A 12-month industrial warranty supports B2B procurement and planned maintenance programs.