Cummins Turbo Technologies 68445522AA Turbo Actuator

The Cummins Turbo Technologies 68445522AA turbo actuator is an electronic VGT actuator designed for the Holset HE300VG turbo on 2013–2018 Ram 2500/3500 6.7L Cummins ISB engines. It electronically modulates the turbine vanes for boost regulation and exhaust flow, enabling ECU-controlled closed-loop vane positioning to optimize throttle response, emissions, and fuel efficiency. This direct-turbocharger housing mount actuator operates at 12V DC and includes a position feedback sensor; calibration or an electronic relearn is required after installation. Commonly used in heavy-duty Dodge Ram applications (6.7L Cummins) as a replacement for failed VGT actuators and compatible with OEM HE300VG or aftermarket equivalents.