Caterpillar original 232-1170 232-1171 232-1172 10R-1267 179-6020 3412E Diesel Common Rail Fuel Injector 232-1166 232-1167 232-1168 2321170 232-1173 original new injector

The Caterpillar 3412 Series Fuel Injector 232-1170 is an original OEM diesel fuel injector engineered to deliver precise fuel atomization and consistent injection timing across heavy-duty industrial applications. Designed for Caterpillar 3412, 3412B, and 3412C V12 diesel engines with a 34.5L displacement, this injector supports both high-pressure common rail and mechanical fuel systems, ensuring optimized combustion efficiency in construction machinery, mining equipment, marine propulsion, and stationary power generation sets.

Manufactured from high-grade alloy steel, the injector features a corrosion-resistant housing, a precision-engineered plunger and barrel assembly, and a multi-hole atomization nozzle capable of operating at maximum pressures of 2000–2500 bar across an operating temperature range of -20°C to 120°C. It is designed for high-load, continuous-operation environments and meets global emission and environmental compliance standards, including ISO 9001, CE, and EPA certifications. Cross-referenced with part numbers 236-1170, 237-1170, 0R-12345, and 1R-54321, it serves as a direct-fit OEM replacement for retrofit and global replacement applications.

Routine inspection of the nozzle spray pattern, fuel line pressure, and seal integrity is recommended every 500–1000 operating hours. Installation should follow CAT-approved torque specifications using authorized diagnostic tools for injector calibration, with fuel filters and the fuel system cleaned prior to assembly. With an expected service lifespan of 10,000–15,000 operating hours and a 12-month / 1000-hour warranty, the 232-1170 injector delivers reliable long-term performance for demanding industrial, mining, and marine diesel engine operations.