original 295050-0331 Common Rail Injectors for C4.4 C7.1 320F 320GC 323F Excavator Spare Parts new injector original new injector

The 295050-0331 common rail fuel injector is purpose-built for C4.4 and C7.1 engines, delivering precise fuel metering under high-pressure operating conditions ranging from 1,800 to 2,200 bar. Specifically engineered for the C4.4 engine platform, this injector integrates seamlessly with the engine's ECU-managed electronic injection system, supporting both solenoid and piezoelectric valve actuation. The component is cross-referenced with 370-7280, 20R-2476, 342-5761, and T4-09980, providing a reliable direct-fit replacement solution for OEM service and overhaul operations across global industrial markets.

Manufactured from high-strength alloys and finished with CNC machining, the injector features multi-hole nozzles, hardened internal components, and OEM-calibrated flow characteristics that ensure stable injection timing and repeatable fuel delivery. Each unit is tested under industrial conditions to verify spray pattern integrity, atomization quality, and pressure response. These design attributes collectively reduce fuel consumption, lower exhaust emissions, optimize combustion efficiency, and increase torque output—meeting the demanding performance requirements of C4.4 and C7.1 powered equipment operating in heavy-duty applications including construction, mining, forestry, and power generation.

The injector is designed for use in excavators such as the 320F, 323F, 324E, and 329E, as well as loaders, motor graders, asphalt pavers, compactors, and generator sets. Routine maintenance practices—replacing fuel filters, monitoring fuel quality, performing return flow tests, and conducting diagnostic scans—help prolong service life. During installation, the fuel system should be cleaned, seals replaced, torque values verified, and post-installation diagnostic scans performed to confirm correct pressure and ECU parameters.