Perkins 2645A743 Common Rail Injector Assembly

The Perkins 2645A743 is an electromagnetic common rail fuel injector designed for high-pressure diesel injection systems. It features a high-strength steel body engineered to withstand extreme combustion pressures and thermal cycles in heavy-duty off-highway applications. The injector assembly includes the nozzle, solenoid valve, and control valve calibrated to OEM flow rates and spray patterns for optimal atomization. This part serves as a direct replacement for Caterpillar remanufactured numbers 321-0990 and 10R-7668, and cross-references to Perkins numbers 2645A709, 2645A749, 2645A705, and 2645A731. It is validated for use in Perkins 1106D-E66TA and Caterpillar C6.6 engine platforms powering hydraulic excavators and wheel loaders.