original 282-0490 Common Rail Injector 321-3600 320-3800 10R7672 for C6.6 C4.4 320D Excavator new injector original new injector

Engineered as a direct-fit replacement for the C6 and C6.6 inline 6 diesel platforms, the 282-0490 fuel injector delivers OEM-equivalent performance across excavators, wheel loaders, motor graders, and generator sets. It is fully cross-referenced with authorized reference numbers 10R-7668, 276-8290, 289-7501, 293-9590, 321-0990, and 2645A709, allowing seamless integration on 1106D-E66TA configurations recorded in aftermarket databases. Each unit is built around a precision-machined nozzle and hardened internal components, ensuring stable high-pressure fuel delivery, clean atomization, and long-term corrosion resistance under continuous industrial duty cycles.

Installed in the cylinder head, the injector receives pressurized diesel from the CP3 / high-pressure pump and meters injection through the ECU or mechanical timing signal. Atomized fuel is delivered into the combustion chamber at the correct phase, supporting efficient combustion across rated engine speeds. This metering accuracy is critical for heavy-equipment applications such as the 938H, 963D, 120M, and 12M, as well as C6.6 generator sets operating in remote power, marine, and stationary installations. Consistent spray pattern control helps maintain original fuel economy and emissions behavior expected from a C6-series powerplant.

Routine maintenance of the fuel system further protects injector life. Operators are advised to check filters every 500 hours, inspect the fuel system every 1000 hours, perform injector testing every 2000 hours, and conduct a comprehensive fuel-system evaluation every 3000 hours. Before installation, the fuel system should be cleaned, the injector bore inspected, torque specifications followed, fuel lines checked, leak testing completed, and an engine test run performed. Common fault indicators — hard starting, rough idle, black smoke, power loss, elevated fuel consumption, and engine knock — can often be traced to injector wear, poor atomization, internal leakage, imbalance, spray faults, or timing issues, all of which this 282-0490 injector is designed to resolve.