original 4P-2233 Diesel Fuel Injector Pump 7E-7607 127-8222 0R-8461 140-8413 173-4647 for 3116 320B 325B  original new injector

Engineered as a direct OE replacement for the 3116 diesel engine, the 4P-2233 fuel injector assembly is built to match the factory fuel system specifications and deliver consistent performance across wheel loaders, excavators, truck engines, marine engines, generator sets, industrial power units and construction machinery equipped with the 3116 platform. The injector is precision-assembled to support accurate fuel delivery, proper atomization and balanced cylinder combustion, which helps restore starting performance, recover rated power, stabilize idle quality and reduce exhaust smoke when installed as part of a professional engine repair or scheduled maintenance program.

This injector is cross-referenced against a wide range of authorized part numbers, including 127-8228, 127-8230, 0R-8465, 0R-8463, 0R-4103, 4P-1731, 4P-2995, 7E-8729, 7E-8727, 7E-8952 and multiple additional references, covering remanufactured and service replacement programs for the 3114, 3116, 3126 and 3126B engine families. Common symptoms of a worn or failing 4P-2233 injector include hard starting, long cranking, rough idle, black smoke, white smoke, diesel knock, misfire, power loss, elevated fuel consumption, vibration, fuel leakage and poor acceleration. Recommended diagnostics include bench testing, spray pattern inspection, leakage testing, cylinder balance testing, fuel pressure testing and engine compression verification.

Before installation, confirm the original part number, engine serial number, arrangement number, machine model and injector physical structure to ensure correct match. Clean the injector bore, replace sealing components, verify fuel system cleanliness, follow correct torque specification, bleed the fuel system, perform a leak test and complete a working load test. Use clean diesel fuel, replace fuel filters regularly, drain the water separator and store spare injectors in sealed packaging to maintain long-term reliability in fleet service, export spare parts supply and industrial equipment rebuilding operations.