original 10R-9003 High Pressure Fuel Nozzle 387-9431 293-4072 for C7 C9 330D Excavator Parts new injector original new injector

Engineered specifically for the C9 and C9.3 engine platforms, fuel injector 10R-9003 delivers precise fuel metering and consistent injection performance across demanding industrial operating cycles. The assembly is fully interchangeable with part numbers 236-0962 and 328-2585, allowing direct fitment on C9 ACERT, Industrial C9, Marine C9, and Generator Set C9 configurations. This injector is commonly specified for excavators 330D/336D, wheel loaders 966H/972H, motor graders 140M, and asphalt pavers operating with C9 common rail fuel systems.

Built with high-precision nozzle technology and OEM-grade calibration, the 10R-9003 injector provides enhanced fuel atomization, improved combustion efficiency, and stable performance under heavy load conditions. Wear-resistant internal components and corrosion-resistant construction support reliable operation in harsh industrial environments, including mining trucks, drilling equipment, prime power generators, standby generator sets, commercial vessels, workboats, offshore support vessels, compressors, and industrial power units. Optimized spray patterns contribute to lower fuel consumption, reduced emissions, higher engine power output, and enhanced cold-start performance.

Proper installation of the 10R-9003 requires ultra-clean diesel fuel, replacement of all sealing washers and O-rings, and verification of the injector seat condition before assembly. Service teams should follow OEM torque specifications, replace fuel filters prior to installation, perform a complete fuel system bleeding procedure, and conduct ECU diagnostic verification. Periodic injector balance tests and monitoring of fuel pressure are recommended to sustain long-term performance of the C9 fuel injection system.