you need to be aware that if the new or reman turbo does not come with the actuator it will need to be calibrated and installed by a repair shop with access to cummins insite software it is a two step process 1st with the actuator plugged in but not installed 2nd with the actuator installed, if not done properly there will be a check engine light and limited performance if it is a genuine cummins new or reman turbo with the actuator factory installed it does not need to be calibrated. are you pricing a reman or new? with or without a core charge? my choice, mainly for the warranty at any cummins authorized shop would be a genuine cummins reman.