Edward S Towanda , PA February 20, 2015 Appliance: KitchenAid 5-Speed Blender KSB5WH4 Kitchenaid Blender Ksb5wh4: Broken kitchen aid bender drive coupler. How to replace Blender Drive Coupler. Replaced with new coupler. Made a tool to hold the screw shaft while the coupler was knocked off with a piece of wooden dowel rod. Apparently your field below will not accept a check mark for Other. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes