original 295050-0331 Common Rail Fuel Injector 370-7280 3707280 for C4.4 C7.1 Engine 320F 320GC 323F Excavator Diesel Fuel Injector Replacement OEM 295050-0361 original new injector

Engineered for demanding heavy-duty applications, this high-pressure common rail diesel fuel injector (OE 295050-0331, cross references 370-7280, 20R-2476, 342-5761, T4-09980) delivers precise fuel atomization for C4.4 and C7.1 industrial engines. Manufactured from high-strength alloys and CNC-machined to exacting tolerances, each unit is OEM-calibrated and tested under real industrial operating conditions to ensure repeatable performance across construction, mining, forestry, agricultural, and power generation platforms.

Operating at 1,800–2,200 bar with solenoid or piezoelectric valve control, the injector provides stable injection timing, accurate fuel metering, and optimized combustion efficiency. Multi-hole nozzles and hardened internal components extend service life while minimizing fuel consumption and emissions under sustained heavy loads. Typical fitments include excavators such as the 320F, 323F, 324E, and 329E, as well as wheel loaders, motor graders, asphalt pavers, compactors, and diesel generator sets. Cross-reference compatibility also extends to selected Perkins engine configurations, offering flexible sourcing for global fleet operators and OEM service partners.

For optimal performance, follow standard installation practices: clean the fuel system, replace all seals, verify torque specifications, and conduct diagnostic scans after fitting. Verify rail pressure and ECU parameters to prevent starting issues, rough idle, abnormal smoke, power loss, misfire, knock, or emission faults. Routine filter replacement, fuel quality monitoring, and periodic return-flow testing further prolong injector service life.