original 10R-7674 Fuel Injector for Excavator 320d C6.4 C6.6 10R-7671 10R-7673 320-0677 320-0688 new injector original new injector

Engineered specifically for the C6 engine platform, the 10R-7674 fuel injector assembly delivers precise fuel metering and consistent spray patterns across the entire operating range. Its electronic fuel injection design is fully compatible with the inline 6-cylinder C6 configuration, including the C6.4 variant used in generator sets, industrial power units, and marine propulsion systems. Each unit is factory performance tested to meet OEM-level standards for flow rate, back leakage, and response time, ensuring reliable cold starts, smooth idle quality, and stable power output under heavy load conditions in construction and mining environments.

The injector incorporates precision-machined internal components and high-grade sealing materials that provide excellent thermal stability and resistance to wear caused by prolonged high-pressure operation. Direct cross reference with 326-4700, 320-0680, and 2645A749 allows for straightforward replacement without the need for additional calibration or engine modification. Its robust construction supports extended service intervals, reducing downtime in demanding applications such as excavators, wheel loaders, backhoe loaders, motor graders, and agricultural machinery operating in harsh field conditions.

Proper maintenance further enhances injector longevity and fuel system reliability. Operators are advised to use high-quality diesel fuel, replace fuel filters at recommended intervals, prevent water contamination in the fuel supply, and routinely monitor injector performance for early signs of irregular combustion. Symptoms such as white smoke, black smoke, or noticeable power loss can often be traced to nozzle wear, blockage, or fuel delivery irregularities, making timely inspection essential. Backed by global aftermarket support, the 10R-7674 serves as a cost-effective OEM replacement solution for maintaining the performance and durability of C6 powered equipment.