original Diesel Fuel Injector 10R-47641 for C7 C9 Engine Excavator E324D 325D 326D2 E329D Engine Parts Replacement OEM 387-9427 263-8216 10R-7221 10R-2828 original new injector

Engineered to deliver precision-grade fuel atomization within the . C9 ACERT engine platform, the 10R-47641 Electronic Unit Injector represents a critical component in heavy-duty diesel injection systems. Cross-referenced with OE numbers 10R47641, 326-1646, 3261646, 326-1647 and 3261647, this injector assembly is manufactured to OEM specifications for reliable performance across construction, mining, marine, and power generation applications. Its multi-hole nozzle design ensures optimized spray pattern and uniform fuel distribution, supporting the inline 6-cylinder, 8.8L turbocharged C9 engine architecture.

Built from hardened alloy steel with precision-ground internal components and corrosion-resistant surface treatment, this fuel injector withstands the high pressures and demanding operating environments typical of ACERT technology engines. It fits a broad range of . equipment, including 320D through 336D excavators, 966H/972H/980H wheel loaders, D7R/D7E/D8T dozers, motor graders, mining excavators, oilfield fracturing units, marine propulsion systems, and standby generator sets. Precision fuel metering enables exact fuel quantity control, improving combustion efficiency, lowering emissions, and enhancing overall fuel economy under continuous-duty loads.

Expected service life ranges from 8,000 to 15,000 operating hours under normal conditions. Installation requires part number verification, engine serial confirmation, injector bore cleaning, new sealing washer installation, fuel circuit priming, leak inspection, and ECM communication verification. Injector trim coding and ECM synchronization may be required post-installation to ensure balanced cylinder performance and long-term reliability.