Amp part number 75154-01A please double check that your vehicle is one of the two listed below or use the Amp web site to check part number compatibility.  Fits 2015-2016 Chevy/GMC crew/double cab 2500/3500 excluding diesel.  Also fits 2014-2016 Chevy/GMC crew/double 1500.  This is the Power Step plug-n-play version meaning it plugs in under your dash to the diagnostic port.  Very nice clean setup!