original 1OR-9787 Common Rail Diesel Fuel Injector for C18 3406E 3456 Engine Excavator Parts Replacement for OEM 10R-9787 10R9787 211-3026 original new injector

Engineered as a direct OEM-grade replacement for the C18 diesel platform, the 10R-9787 Fuel Injector Assembly delivers precision-controlled high-pressure fuel delivery for demanding industrial, marine, and power generation applications. This injector is fully cross-referenced with 387-9433, 326-4700, 328-2585, and 20R-8064, ensuring reliable interchangeability across C18 ACERT, C18 Industrial, C18 Marine Propulsion, C18 Generator Set, and C18 Oilfield engine variants used in 374D and 374F excavators, mining trucks, and heavy industrial power units.

Manufactured with a precision-machined nozzle and corrosion-resistant construction, the 10R-9787 injector features OEM fuel calibration and balanced fuel flow characteristics for optimized combustion performance. Each unit undergoes strict leak testing to ensure long service life under continuous heavy-duty operation. Performance benefits include improved fuel atomization, reduced fuel consumption, enhanced combustion efficiency, lower exhaust emissions, increased engine power output, reduced smoke generation, and improved cold starting capability—critical requirements for mining, construction, marine propulsion, oilfield, and rental fleet operators.

For optimal service life, install the injector following OEM procedures: clean the injector bore, inspect the cylinder head seating area, replace sealing washers, apply specified torque values, prime the fuel system, and conduct a leak inspection. Use high-quality diesel fuel, replace fuel filters regularly, and monitor fuel consumption trends. Common diagnostics include hard starting (internal wear), black smoke (nozzle fouling), white smoke (injector leakage), power loss (fuel flow restriction), and rough idle (uneven injection).