Gearwrench Socket Set | Property Room Gearwrench Replacement 16mm Socket for Serpentine Belt Tool Sets 3680D... Replacement 14mm socket for serpentine belt tool set 3680D. Used in serpentine belt tool kit numbers 3680 & 89000 , Model Number: 368076 , Product type: TOOLS Huge selection to choose from. GEARWRENCH Replacement 17mm Socket For Serpentine Belt Tool Includes Drive Tools: Long Bar, Special GearWrench® Ratcheting Wrench, and 3/8, 1/2 and 3/4 Adapters