The turbocharger actuator controls the variable-geometry (VGT) vanes or wastegate that regulate boost on modern diesels such as the Ford Powerstroke 6.7L, Dodge Ram Cummins, and GM Duramax. A faulty actuator leads to low boost, overboost codes, and limp mode. We carry OEM-brand actuators from Garrett, BorgWarner, and Holset, many shipping same or next business day with free shipping over $1,000. Verify the actuator against your turbocharger's part number before ordering.