For GMC Sierra 2500 HD Communication Interface Module Retainer Dorman 56762XTZJ

For GMC Sierra 2500 HD Communication Interface Module Retainer Dorman 47936KM

For GMC Sierra 2500 Communication Interface Module Retainer Dorman 42233VMJX

For GMC Sierra 2500 Communication Interface Module Retainer Dorman 62267WVTV

For Sierra 2500 HD Classic Communication Interface Module Retainer 52159QWQB

For Sierra 2500 HD Classic Communication Interface Module Retainer 46314YHFV