Caterpillar original Diesel Fuel Injector GP, Common Rail Fuel Injector, Excavator, 250-1302, 10R1303, 3512B, 3516B, C3500B, 797, 793C, 789C, Replacement for 386-1754, 392-0202 original new injector

The Caterpillar 250-1302 Fuel Injector Assembly is a precision-engineered diesel fuel injection component developed for Caterpillar 3512B engine platforms. Manufactured to OEM specifications, this injector delivers accurate fuel atomization, optimized combustion efficiency, and reduced emissions, ensuring reliable engine performance under demanding continuous-duty operating conditions. As a critical component of the high-pressure fuel injection system, it helps maintain fuel system efficiency and supports maximum engine service life.

Built with a precision-machined nozzle and OEM-calibrated fuel delivery, the 250-1302 injector provides precise fuel metering and stable combustion performance. High-pressure fuel enters the injector body and atomizes through precision nozzle orifices, producing a fine fuel mist that promotes efficient combustion, increased power output, reduced fuel consumption, and enhanced cold start performance. The heavy-duty, corrosion-resistant construction is engineered to withstand extreme injection pressures and elevated combustion temperatures common in CAT 3512B diesel engines.

This injector is compatible with Caterpillar 3512B, 3512, 3516B, 3516, 3508B, and 3508 engine platforms, with cross reference numbers 10R0957 and 20R2057. Typical applications include power generation generator sets, marine propulsion systems, offshore power modules, oil and gas equipment, mining haul systems, and industrial compressors. For dependable operation, use clean diesel fuel, replace fuel filters regularly, and perform injector calibration testing. Compatibility should always be verified using the engine serial number and injector part number before ordering. Supplied in industrial export packaging.