Perkins original Perkins 4P-2995 Diesel Engine Fuel Injector for 3114 3116 Excavator 320B 325B 446B Truck Common Rail Injector new injector original new injector

The Perkins 3116 3114 C7 MUI diesel fuel injector, built around the authorized core reference 4P-2995, is engineered as a direct OE-style replacement for medium-duty and heavy-duty diesel engine applications. It covers the complete authorized cross-reference range including 0R-8471, 0R-3389, 7E-8952, 0R-3006, and the CA-prefix equivalents CA4P2995, CA0R8471, CA0R3389, and CA7E8952. Designed for Mechanical Unit Injection (MUI) platforms, the injector delivers precision atomization, stable fuel metering, and consistent injection timing across Perkins 3116 truck, marine, generator, and industrial engine configurations.

This injector is purpose-built for demanding operating environments such as medium-duty trucks, commercial buses, work boats, standby and prime power generator sets, construction machinery, compressors, and agricultural power units. Each unit is produced under quality testing requirements covering leakage, fuel delivery volume, and spray pattern, ensuring reliable cold starting, smooth idle, balanced cylinder contribution, and controlled exhaust emissions. The heavy-duty construction supports reman and new aftermarket supply chain compatibility, and full set replacement options are available as single units or 6-piece matched sets for complete engine rebuild projects.

Proper maintenance extends service life: replace the fuel filter regularly, drain the water separator frequently, use clean diesel from reliable sources, and keep the fuel tank free from water, sludge, and microbial contamination. When symptoms such as hard starting, rough idle, black or white smoke, misfire, low power, high fuel consumption, diesel knock, fuel leakage, or excessive exhaust temperature appear, technicians should perform spray pattern, leakage, and injector balance tests, then replace the faulty injector or the full matched set while recording the old injector number and engine serial number for traceability.