Perkins original  20R-1270 Common Rail Injector 392-0206 386-1758 10R-1288 Replacement for Caterpillar 3508B 3512B 3516B Diesel Engine Parts original new injector

The Perkins 20R-1270 is an Electronic Unit Injector engineered for the Perkins 3500 Series engines, including the 3508B, 3512, 3512B, 3516, and 3516B. By integrating the injector nozzle with high-pressure pumping elements, this EUI delivers precise fuel metering and stable injection pressure across demanding duty cycles, supporting reliable operation in generator sets, marine propulsion, mining equipment, oilfield power packs, pumps, and compressors.

Manufactured to OEM specification precision tolerances, the 20R-1270 features corrosion-resistant materials, wear-resistant internal components, and a tight atomized spray pattern that promotes improved fuel economy, lower emissions, and consistent engine power. Each unit is quality-control inspected and tested before shipment, helping reduce downtime and extend service intervals in heavy industrial and remote operating environments.

Available in New OEM, Remanufactured, and Aftermarket conditions, the 20R-1270 cross-references with 392-0206, 386-1758, 250-1306, 229-0194, 162-8809, 132-0202, 126-7992, 116-7534, 10R-1288, 0R-8688, and 0R-8891. For best results, use ISO-certified diesel, replace fuel filters regularly, and follow the Perkins service manual for bore cleaning, seal replacement, torque values, and ECU signal verification before installation.