Caterpillar original Common Rail Diesel Fuel Injector 10R-7672, Replacement for OEM 320-0677, Cross Reference 10R-7671, fits Engines 320D C4.4 C6.6 for CAT Excavator original new injector

Precision-engineered for Caterpillar C6-series diesel engine platforms, the 10R-7672 common rail diesel fuel injector is a new, factory-calibrated component built to meet OEM-equivalent performance requirements for heavy-duty fuel systems. It is compatible with all CAT C6, C6.4 and C6.6 diesel engine variants, including those configured for industrial power, construction, mining, marine propulsion, power generation, agricultural and oilfield use. It cross-references to part numbers 326-1641 (3261641) and 10R-7656 (10R7656) to simplify parts matching for procurement and maintenance teams.

Operating as part of the high-pressure common rail injection system, this injector delivers precisely metered diesel fuel into combustion chambers at calibrated intervals to support consistent atomization and optimal air-fuel mixing. Its stable injection pattern and high-pressure capability improve combustion efficiency, engine response, power and torque output, cold-start performance, fuel economy and emission control, even under fluctuating load conditions. The corrosion-resistant internal components also reduce wear risks from fuel contamination for reliable ongoing operation.

Manufactured with precision-machined alloy steel components and calibrated to original Caterpillar specifications, the 10R-7672 injector features heavy-duty construction built to withstand demanding industrial operating environments and support extended maintenance intervals. It is suitable for a wide range of diesel-powered equipment including excavators, loaders, generators, mining machinery and marine systems, and comes with a 12-month warranty for guaranteed performance in B2B fleet, maintenance and aftermarket use cases.