original Diesel Fuel Injector 156-3895 171-9704 Cross Reference 111-7916 for 3412E 3412 3408 Engines 232-1173 for 3412 Tractor Replacement original new injector

The 156-3895 diesel fuel injector assembly is engineered for 3412 Series engines, including 3412, 3412B, 3412C and 3412 DITA configurations. Designed for heavy-duty generator sets, marine propulsion, mining equipment and industrial power units, it supports applications ranging from commercial vessels and offshore support vessels to pump drives, compressor drives and power modules. Cross references include 0R-8780, 10R-0955 and 20R-2055.

As a high-precision fuel metering and atomization component, the injector remains closed until calibrated pressure is reached, then delivers atomized diesel into the combustion chamber for mixing with compressed air. Precision-manufactured internal components support exact fuel metering, while balanced calibration promotes cylinder-to-cylinder consistency. The result is improved atomization and combustion efficiency, stable operation, reduced fuel consumption and lower exhaust emissions. Hardened materials and corrosion-resistant treatment support durability under high temperatures, pressures and demanding marine or industrial conditions.

For dependable service, verify the part number and engine serial number before ordering, since cross references may vary by engine arrangement. During installation, clean the injector bore, inspect fuel lines, replace sealing washers and torque the assembly according to specifications. Post-installation checks should cover leakage, idle stability, exhaust smoke, cylinder balance and fuel pressure. Regular filter replacement, clean high-quality diesel and prevention of water contamination help maintain spray performance. The injector is supplied with a 12-month warranty in neutral packaging or with customized branding.