Where is the date code located on model numbers CMCMW270Z1 and CMCMW260P1 mowers? Wilson October 03, 2020 20:01 The date code is located in the battery compartment. You may have to remove the battery to see it. Related articles Where is the date code located on the model number CMCST910M1? Comments 0 comments Please sign in to leave a comment.