Sally B Raleigh , NC September 15, 2017 Appliance: KitchenAid 5-Speed Blender KSB5WW4 Kitchenaid Blender Ksb5ww4: Kitchen aid blender drive coupler suddenly disintegrated. How to replace Blender Drive Coupler. Found AppliancePartsPros.com had a solution, parts diagram, video how to and the part. Easy repair. Timely shipping. The blender was over 17 years old it's like brand new. Great service. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes