What size is the belt on the model # CMXGCAQ108493? Wilson October 03, 2020 20:00 The belt is a Kevlar 3L -44 or 3/8 V belt 44". Related articles Will the model number CMXZDCG480 work with the older Craftsman garage door openers? What is the part number for the spool head on the CMST920? Comments 0 comments Please sign in to leave a comment.