original 10R-7671 Excavator Parts Injectors 320-0677 320-0680 320-0690 for C4.4 C6.6 C6.4 E320D 323D new injector original new injector

The 10R-7671 fuel injector is specifically engineered for the C6, C6.4, and C6.6 diesel engine series, delivering precise compatibility across industrial, construction, marine, and power generation applications. Designed as a direct OEM replacement, this injector integrates seamlessly with the high pressure common rail fuel system operating at up to 1800+ bar, maintaining factory calibration and injection timing. It cross-references with 326-4700, 2645A751, and 10R7671R, providing a reliable solution for fleet operators and service workshops servicing powered equipment including excavators, wheel loaders, generator sets, and marine propulsion units.

Manufactured with high strength alloy construction and a precision machined multi hole nozzle assembly, the 10R-7671 ensures advanced fuel atomization, consistent spray pattern, and accurate fuel metering. Electronic control technology enables optimized combustion efficiency, resulting in reduced fuel consumption, lower exhaust emissions, and stable engine performance under demanding load conditions. The corrosion resistant design and robust internal components contribute to long service life and minimized maintenance intervals, supporting continuous operation in harsh industrial environments.

Installation requires adherence to torque specifications, use of new sealing washers, and post installation ECM calibration verification to restore original engine performance. Routine practices such as clean diesel fuel usage, regular fuel filter replacement, water separator drainage, and injector balance testing help sustain injector reliability. Operators should monitor for symptoms including difficult starting, rough idle, excessive smoke, reduced power, or diagnostic fault codes as indicators for inspection. Worldwide shipping and technical installation guidance are available to support professional B2B procurement and field service teams.