original 0R-8473 Fuel Injector for 3116 3114 Engine E200B 320B Excavator Diesel Injector Assembly 127-8216 127-8209 127-8213 Replacement original new injector

Engineered for heavy-duty mechanical diesel platforms, this remanufactured fuel injector 0R-8473 delivers dependable performance for 3114 and 3116 MUI-type engines used in industrial equipment, excavators, trucks, and power units. The 8 mm diameter dual scroll nozzle assembly mounts directly to the engine cylinder head and is cross-referenced with authorized OE numbers 127-8213, 101-8673, 0R-4374, 0R-3382, and 4P-1734, making it a reliable drop-in replacement for fleet maintenance, engine rebuilding, and repair workshop applications.

The injector provides precise fuel quantity control, consistent spray atomization, and stable injection timing across every cylinder. Balanced cylinder-to-cylinder fuel delivery reduces smoke, minimizes incomplete combustion, and improves cold starting and acceleration under load. Optimized spray geometry helps protect piston crowns from overheating caused by poor atomization patterns while supporting improved fuel economy in demanding duty cycles. This unit is designed specifically for mechanical unit injector systems and is not compatible with modern common rail architectures.

Common symptoms addressed by replacing worn injectors include hard starting, white or black smoke, rough idle, engine knock, low power, high fuel consumption, fuel dilution in oil, elevated exhaust temperature, and misfire. For long service life, use clean diesel meeting the engine manufacturer's specification, replace fuel filters at recommended intervals, drain water separators regularly, and inspect seals during injector removal and reinstallation. Spare units should be stored in sealed packaging away from moisture and dust.