original 10R-4844 Common Rail Injector for C7 C9 Diesel Engine 20R-8062 553-2592 459-8473 10R-2828 267-9717 Replacement new injector original new injector

The fuel injector 10R-4844 is engineered as a direct-fit replacement component specifically designed for the C9 and C9 ACERT engine platforms. Featuring an inline 6-cylinder, turbocharged configuration with 8.8L displacement, this electronically controlled common rail injector delivers precise fuel metering, stable idle performance, and improved combustion efficiency across demanding duty cycles. Built to OEM specifications, it ensures seamless integration within the original fuel injection system without requiring modifications.

This injector assembly is fully compatible with a wide range of -powered equipment, including the 330D, 336D, 345D, and 349D excavator series, as well as the 966H, 972H, and 980H wheel loader models. Beyond construction and mining machinery, it also serves generator sets, industrial power units, material handling systems, and marine propulsion engines, providing a versatile solution for fleet operators, rebuilders, and maintenance service providers seeking reliable C9 fuel system components.

Cross-referenced against authorized numbers 249-0713 and 328-2585, the 10R-4844 injector addresses common operational concerns such as difficult cold starting, black smoke emission, increased fuel consumption, reduced horsepower, unstable idle, and engine misfire—symptoms frequently linked to injector performance degradation. Installation should follow OEM torque specifications with new sealing components, and routine maintenance using clean diesel fuel, regular filter replacement, and periodic injector balance checks is recommended to maximize service life and minimize equipment downtime.