4031377
Turbocharger Actuator Kit
Cummins®

The Turbocharger Actuator Kit (part number 4031377) is an essential component of a turbocharged engine. It is responsible for controlling the boost pressure produced by the turbocharger, which in turn improves engine performance and efficiency. The actuator kit consists of various parts including an actuator arm, a diaphragm, and a spring. The actuator arm is connected to the wastegate valve on the turbocharger and moves it to regulate the flow of exhaust gases that drive the turbine wheel. The diaphragm senses changes in pressure and sends signals to the electronic control module (ECM) which adjusts the position of the actuator arm accordingly. The spring provides tension to keep all components in place and ensure proper operation. A malfunctioning actuator kit can cause poor acceleration, reduced power output, or even engine damage due to excessive boost pressure. Therefore, it is important to regularly inspect and replace this component as necessary for optimal engine performance.