original Diesel Engine Parts 306-9390 Fuel Injector for C6.6 Wheel Loader 928HZ 938H Excavator 2645A749 Replacement for OEM new injector original new injector

Engineered specifically for the C6, C6.4, and C6.6 engine families, this common rail fuel injector delivers precise fuel delivery across industrial, marine, and generator applications. Built to OEM manufacturing standards, it features precision flow calibration, a superior spray pattern, and a low leakage design that supports stable fuel delivery and excellent cold-start performance. The injector is validated for use in 320D, 320DL, 320D2, 323D, 323DL, 324D, 325D, 928HZ, 938H, IT38H, 963D, 120M, and 12M equipment, as well as generator sets and industrial power units. Authorized OE numbers covered include 306-9390, 10R-7674, 320-0690, 310-9067, 306-9380, 292-3780, 292-3790, 320-0688, 321-0990, 321-3600, 382-0480, 2645A749, 2645A751, 2645A734, 2645A735, 2645A719, and 320D2.
By improving fuel atomization and higher combustion efficiency, this injector reduces particulate emissions, lowers fuel consumption, and enhances overall engine response. Its high pressure durability and long service life contribute to an extended engine lifespan even under heavy-duty operating conditions. Routine maintenance practices—such as replacing fuel filters at OEM intervals, using premium diesel fuel, avoiding water contamination, and conducting periodic injector performance testing—help maintain consistent injection performance and protect the broader fuel system from premature wear.
Common fault indicators addressed by replacement include hard starting, rough idle, excessive smoke, engine misfire, reduced power output, increased fuel consumption, and excessive emissions. When these symptoms appear in C6, C6.4, or C6.6 engines, installing this calibrated injector restores proper fuel metering, stabilizes combustion, and returns the engine to its designed performance baseline. It is a reliable solution for construction machinery, surface mining equipment, diesel generator sets, marine auxiliary engines, agricultural power units, and stationary industrial power systems requiring dependable common rail injection.