original 4P-9077 Diesel Fuel Injector for 3508 3512 3516 Engine Common Rail Injector 4P9077 7E-6408 9Y-4544 7C-4175 7C-0345 0R-3052 Nozzle original new injector

Engineered for demanding heavy-duty operation, the 4P-9077 fuel injector delivers reliable high-pressure fuel atomization for the 3512A V12 turbocharged diesel engine. This industrial-grade injector is manufactured to OEM specification compliance and serves as a direct replacement for cross reference numbers 0R-2925, 236-8241, and 10R-7227, providing a fully interchangeable solution for continuous-duty power generation, marine propulsion, and mining applications.

Constructed from high-durability steel alloy with heat-resistant and anti-corrosion coatings, the 4P-9077 features a precision multi-hole nozzle that produces a uniform spray pattern for high-efficiency diesel combustion. The injector is electronically controlled and calibrated to deliver fuel at pressures up to 2500 bar, ensuring optimal combustion efficiency, reduced emissions, and stable engine performance under continuous load. Its wear-resistant construction extends service intervals across 3512A, C3512A, and 3500 Series engines used in industrial generator sets, marine vessels, mining trucks, excavators, bulldozers, and drilling rigs.

Routine maintenance includes inspecting the injector for leaks every 500 operating hours, replacing seals and O-rings during scheduled service, and testing spray patterns on a diagnostic bench. Address symptoms such as hard starting, black or white smoke, power loss, misfire, rough idle, engine knocking, or elevated exhaust temperatures with prompt injector inspection to safeguard engine reliability and operational uptime.