original 20R-1265 Fuel Injector 386-1753 379-0509 392-0212 20R-1272 Common Rail for 3508 3512 new injector original new injector

The 20R-1265 Fuel Injector Assembly is a precision-engineered direct injection component specifically designed for 3512B V12 turbocharged diesel engines, with confirmed compatibility for the 3516B V16 platform, 3508B V8 series, and the broader 3508, 3512, 3516, and C3500B engine family. As an OEM equivalent injector GP fuel unit, it is cross-referenced against 20R-1264, 20R-1266, 20R-1270, 20R-1272, 20R-1275, 20R-1276, 20R-1277, 20R-1278, 20R-1280, 20R-1282, 10R-9617, 10R-1280, 10R-3256, 392-0201, 386-1753, 250-1301, 229-0198, and 164-7905, ensuring drop-in interchangeability across the 3512B 20R-series injector range used in power generation, marine propulsion, and heavy-duty industrial equipment.

Manufactured from high-strength alloy steel with precision-ground internal components and an industrial-grade nozzle assembly, the 20R-1265 withstands extreme operating temperatures, high injection pressures, and continuous-duty cycles typical of 3512B and 3516B engine platforms. Each injector delivers high precision fuel metering, superior atomization, optimized combustion efficiency, reduced particulate emissions, and corrosion resistance suitable for marine and offshore environments, meeting the exacting performance standards required by 3508B mining and C3500B power generation installations.

Engineered as a direct-fit replacement for the original fuel injection system on 3512B, 3516B, 3508B, and C3500B series engines, this injector assembly is calibrated to restore factory-level fuel delivery and combustion balance. It is the recommended service component for operators of -powered generator sets, marine main propulsion systems, gas compression skids, and oilfield equipment seeking OEM-quality reliability with comprehensive cross-reference coverage across the authorized 20R-series and 10R-series replacement numbers.