original 20R-1270 Common Rail Fuel Injector Assembly for 3508B 3512B 3516B Diesel Engine 5130B 5230B Excavator Parts 392-0206 3920206 original new injector

Engineered for demanding heavy-duty operations, the 20R-1270 Diesel Fuel Injector delivers precise fuel atomization and stable high-pressure delivery for 3500 Series diesel engines. This Electronic Unit Injector (EUI) is manufactured to strict OEM specifications and serves as a direct replacement referenced by multiple industry cross numbers including 20R1270, 392-0206, 386-1758, 250-1306, 229-0194, 162-8809, 132-0202, 126-7992, 116-7534, 10R-1288, OR-8688, and OR-8891. It is primarily configured for 3512B, 3516B, and 3508B diesel engines used in industrial power packages worldwide.

Precision-machined internal components, corrosion-resistant materials, and wear-resistant construction extend service life while maintaining a tight spray pattern for optimal combustion. Benefits include improved fuel economy, lower emissions, consistent engine power output, and reduced downtime across generator sets, marine propulsion systems, mining power units, oilfield power packs, pumps, and compressors. Each injector undergoes strict quality control inspection and functional testing to ensure reliable performance under continuous heavy-load conditions in Power Generation, Marine, Mining, Oil & Gas, and Industrial Manufacturing sectors.

For optimal service life, use ISO-certified diesel fuel, change fuel filters frequently, and maintain clean reservoirs and fuel lines. During installation, remove the old injector, clean the bore, replace seals, and torque per manual specifications. Perform an ECU test to verify proper injector signal and pressure. Final fitment must be verified with the Engine Serial Number (ESN) and injection configuration to ensure correct application.