original 156-3895 Fuel Injector 232-1166 232-1173 153-5938 20R-5392 198-6877 for 3408 Tractor new injector original new injector

Engineered specifically for the 3412 engine platform, this fuel injector 156-3895 delivers precise fuel metering and stable atomization across 3412, 3412B, and 3412C V12 four-stroke diesel configurations. The injector assembly is calibrated to factory specifications, ensuring consistent cylinder-to-cylinder performance and reliable cold-start behavior under demanding operating conditions. Heavy-duty hardened internal components combined with corrosion-resistant surface treatment allow the unit to withstand elevated combustion pressures, high temperatures, and the corrosive environments commonly found in marine engine rooms, mining sites, and remote generator installations.

The 156-3895 injector cross-references with part numbers 0R-8780, 10R-0955, and 20R-2055, providing a direct-fit replacement solution for service operations, engine rebuilds, and fleet maintenance programs. The high-pressure injection mechanism delivers finely atomized diesel into the combustion chamber, improving combustion efficiency, reducing fuel consumption, and lowering exhaust emissions. Each unit undergoes strict quality inspection, including flow testing, spray pattern verification, and leakage checks, to ensure OEM equivalent performance. The injector is suitable for generator sets, commercial marine vessels, mining haul trucks, pump and compressor drives, and various industrial power modules.

Before installation, operators should verify the injector part number, clean the injector bore, inspect the fuel lines, and replace all sealing washers to prevent leakage. During installation, the mounting surface must be cleaned, new sealing components fitted, the injector torqued to specifications, fuel lines reconnected, and the system bled of air before start-up. Post-installation checks include fuel leakage inspection, idle stability verification, exhaust smoke evaluation, and cylinder balance testing. Routine maintenance such as using clean diesel fuel, replacing fuel filters at recommended intervals, and monitoring injector spray performance will help maximize service life and maintain long-term engine reliability across all 3412 series applications.