Sande*mcpherson M Hot Springs , SD August 03, 2014 Appliance: KitchenAid 5-Speed Blender KSB5WH4 Kitchenaid Blender Ksb5wh4: Drive coupler had broken down. How to replace Blender Drive Coupler. Replaced with new part. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes