original 10R-4844 Common Rail Fuel Injector for C7 C9 Excavator Diesel Engine Fuel Pump Injectors 387-9433 387-9437 328-2578 20R-8062 Replacement for OEM original new injector

Engineered for demanding heavy-duty service, the 10R-4844 diesel fuel injector delivers precise, high-pressure fuel atomization required by the C9 and C9 ACERT inline six-cylinder turbocharged diesel platform. Cross-referenced to 249-0713 and 328-2585, this injector assembly is a direct OEM-quality replacement designed for excavators including the 330D, 330DL, 336D, 336DL, 345D and 349D, wheel loaders such as the 966H, 972H and 980H, as well as generator sets, marine propulsion engines and stationary industrial power units running the 8.8L C9 block.

Each 10R-4844 unit provides accurate fuel quantity control, improved combustion efficiency, reduced particulate emissions, higher horsepower output, sharper throttle response and stable idle performance. Fleet operators benefit from lower fuel consumption, reduced maintenance costs, enhanced engine reliability, extended service life and less unplanned downtime. Manufactured to industrial-grade tolerances, the injector addresses common field concerns including hard starting, black smoke, rising fuel consumption, power loss, unstable idle and misfire, where injector degradation is often the underlying root cause.

Installation requires cleaning the mounting bore, fitting new seals, torquing to OEM specification, connecting the electrical harness, priming the fuel system, then checking for leaks and verifying injection balance. Use clean diesel fuel, replace filters on schedule, monitor rail pressure and observe OEM service intervals for maximum service life. B2B pricing, bulk supply and worldwide equipment compatibility available.