3824049
Tapping
Cummins®

The Variable Geometry Turbocharger (VGT) is a truck component with part number 3824049 that adjusts the airflow to the engine by altering the angle of its vanes. The VGT's vanes are controlled by an electronic actuator that responds to signals from the Engine Control Unit (ECU). This allows the turbocharger to provide more boost at lower engine speeds for improved acceleration, while reducing boost at higher speeds for better fuel efficiency. The VGT also helps reduce emissions by optimizing combustion and allowing for quicker warm-up of the Exhaust Gas Recirculation valve (EGR), Diesel Particulate Filter (DPF), Diesel Exhaust Fluid (DEF), and Selective Catalytic Reduction (SCR) systems. To monitor performance, the VGT relies on sensors such as the Mass Airflow Sensor (MAF), Manifold Absolute Pressure sensor (MAP), Intake Air Temperature sensor (IAT) and On-board Diagnostics system(OBD).