The original equipment variable geometry turbocharger actuator on certain Dodge and Ram diesel-powered trucks is prone to failure from soot and carbon buildup and electronic component failure. The Variable-Geometry Turbocharger Actuator, No. 904-530, from Dorman Products is a precision-engineered replacement designed to match the fit and function of the factory actuator on specified vehicle makes, years, and models. The solution is designed to help restore proper variable boost levels and throttle response when the original actuator has failed from soot and carbon buildup or component failure. The 904-530 comes complete with mounting hardware, cable ties, and an adapter wiring harness to enable compatibility with certain model years. This actuator must be calibrated after installation using a capable scan tool.