original 0R-8473 1278218 Diesel Fuel Injector 127-8213 for 3114 3116 Engine E200B 320B Excavator Part new injector original new original new injector

Engineered specifically for 3114 and 3116 mechanical diesel engines, this remanufactured Mechanical Unit Injector (MUI) is built around the primary OE reference 0R-8473 and carries full interchange coverage with 0R8473, 127-8213, 1278213, 101-8673, 1018673, 0R-4374, 0R4374, 0R-3382, 0R3382, 4P-1734, and 4P1734. The 8mm dual scroll nozzle and cylinder-head mounted configuration are matched to the original 3116 / 3114 MUI injection geometry, ensuring correct fuel quantity control, spray atomization, and injection timing stability across each cylinder.

This injector is intended for service replacement in 3116 industrial engines, 3116 truck applications, and 3116 equipment engines including excavators and power units, where the engine serial and injector part number align. It is not designed for common rail systems. The remanufactured unit supports cylinder-to-cylinder fuel balance, reduces smoke and incomplete combustion, and helps protect the piston crown from overheating caused by a degraded spray pattern, contributing to improved engine starting, acceleration response, and better fuel economy under load.

For reliable operation, use clean diesel fuel meeting specifications, replace fuel filters at the recommended interval, drain water separators regularly, and avoid running the fuel tank extremely low. Check for air ingress in the fuel system, inspect return fuel flow during diagnosis, and test the injector spray pattern at engine overhaul. Always replace seals during removal and reinstallation, and store spare injectors in sealed packaging away from moisture and dust.