original 10R-1267 Common Rail Fuel Injector 2321171 Replacement for 3406 3408E 3412E Engine C7 C9 C13 C15 C18 Excavator Accessories  original new injector

Engineered specifically for the 3412 engine family, fuel injector 10R-1267 delivers precise fuel delivery across the V12 14.6L direct injection platform, including the 3412, 3412C, and 3412E variants. The injector is fully compatible with both mechanical and electronic injection systems found in 3412C and 3412E configurations, allowing seamless integration into industrial generator sets such as the 3412G, marine propulsion units, 3400 series excavators, and 3450 mining loaders. Operating within a pressure range of 2200–2500 bar, it supports the demanding combustion requirements of heavy-duty applications.

Manufactured from high-durability steel and alloy materials, this injector features precision machining that ensures consistent fuel flow and a stable multi-hole spray pattern with fine atomization. The design meets OEM standards for pressure rating, injection timing, and overall performance, providing resistance to wear, corrosion, and elevated operating temperatures typical of industrial, marine, and mining environments. Mounting bolt torque should be set to 35–40 Nm in accordance with OEM specifications, with the injector pre-lubricated using clean diesel prior to installation to protect internal components during initial startup.

Routine maintenance is recommended every 500 operating hours, including fuel filter inspection and replacement of the injector if spray pattern deterioration or leakage is observed. Common fault indicators such as engine misfire from a clogged nozzle, excessive smoke from a faulty spray pattern, hard starting linked to low fuel pressure, or reduced performance from a worn plunger and sleeve can be addressed by cleaning or replacing the 10R-1267 unit. Cross-referenced under 10R1267, 236-7846, 2367846, and 0R-1267, this injector provides a reliable OEM and aftermarket solution for maintaining the operational integrity of 3412 powered equipment.