original 370-7280 Diesel Injector 370-7282 344-3316 for C4.4 Engine M315F M317F 325F 329E Replacement for OEM new injector original new injector

Engineered specifically for the C4.4 and selected C7.1 engine platforms, this common rail fuel injector delivers OEM-calibrated performance across a wide range of industrial and mobile equipment. The assembly is precision-matched to the C4.4 ACERT, C4.4 industrial, and C4.4 generator engine variants, ensuring accurate fuel metering, optimized atomization, and improved combustion efficiency under demanding operating conditions. It is fully compatible with 320F, 323F, 324E, 326F, and 329E excavators, M315F, M317F, and M323F material handlers, as well as generator sets and industrial engines used in construction, mining, agriculture, and power generation applications.

The injector features high-pressure common rail technology with a precision atomization nozzle and corrosion-resistant construction, providing stable power delivery and excellent fuel economy. Each unit is calibrated to original flow rate specifications, supporting reliable power output, lower fuel consumption, and consistent engine performance in hydraulic excavators, wheel loaders, backhoe loaders, telehandlers, standby generator sets, prime power systems, compressors, pumps, and engine power modules operating in harsh industrial environments.

Routine maintenance with clean diesel fuel, timely filter replacement, and periodic injector balance testing helps maintain peak performance. Monitoring fuel pressure and addressing diagnostic trouble codes, excessive exhaust smoke, increased fuel consumption, engine vibration, reduced power output, or poor acceleration at an early stage will extend injector service life and protect the overall fuel injection system.