INSULATE,MUFFLER GM TIER2Specifications Item Description This foam insulation clamp (1001091794) is used in the Engine Assembly for GM engines equipped with the Arctic Package on JLG 450AJ and 450A aerial work platforms. The clamp measures 13 inches in length by 13 inches in width by 5. 25 inches in height and weighs 0. 8 pounds. This replacement part is compatible with machines from serial number 0300222053 through the current production date. Skyworks is an authorized