original 320-0680 10R-7672 10R7672 Diesel Injector for C4.4 C6.6 Engine 320D 323D Excavator Machinery Parts new injector original new injector

Engineered specifically for the C4.4, C6, and C6.6 engine platforms, the 320-0680 common rail fuel injector delivers OEM-equivalent fueling precision across a broad range of industrial and mobile equipment. Its calibration profile and injector geometry are matched to combustion chamber characteristics, ensuring precise fuel metering and consistent injection timing for engines installed in 320D and 323D excavators, M313D through M322D wheel excavators, diesel generator sets, and marine propulsion units.

Internally, the injector assembly features high-pressure common rail compatibility, multi-hole nozzle technology, and precision-machined control components that support superior atomization and improved combustion efficiency. These working principles translate into lower fuel consumption, reduced exhaust emissions, and improved engine power output under varying load conditions. Built with high pressure resistance, corrosion-resistant materials, and heavy-duty reliability in mind, the injector maintains stable idle performance and long service life even in demanding construction, mining, and marine operating environments.

Installation and servicing should follow the official service manual, including replacement of sealing washers, verification of injector coding where applicable, and fuel system calibration when required. For continued performance, operators are advised to use ultra-clean diesel fuel, replace fuel filters at recommended intervals, prevent water contamination, monitor fuel rail pressure, and conduct periodic diagnostic testing using return flow tests, cylinder balance tests, electronic fault code scans, and spray pattern analysis.