Replacement blender coupler and spanner kit designed to restore the drive connection on compatible KitchenAid blenders. This direct replacement fits models and part numbers listed below and includes the installation tool needed to swap the coupler quickly and securely. Why you need it Restores reliable power transfer from the motor to the blade assembly when the original coupler is worn, stripped, or damaged. Saves time and money vs. replacing the entire jar or blender base. Includes a spanner tool to make installation straightforward for home . Key benefits Direct fit for listed KitchenAid models and part numbers for a straightforward . Replaces the driver/coupler that connects the motor drive to the blade assembly, eliminating slipping, grinding, or loss of blade rotation. Simple installation with the included spanner tool—no special equipment required. Compatibility Compatible with KitchenAid part numbers AP2930430 and PS401661. Fits KitchenAid models KSB5WH, KSB5, and KSB3 Driver assemblies. Designed as a replacement for the coupler/driver interface on the listed models. Functionality and performance Reestablishes the mechanical connection between the blender base and the blade assembly so blades spin correctly under load. Helps eliminate symptoms of a failing coupler such as skipped rotation, intermittent power transfer, or noisy operation. Designed to meet the fit and operational needs of the original part so performance is restored to expected levels. What's included Replacement blender coupler (driver). Spanner installation tool for removing and securing the coupler. Simple installation (general steps) 1. Unplug the blender and remove the jar and blade assembly. 2. Use the included spanner to remove the old or damaged coupler from the blade housing or motor shaft as applicable. 3. Fit the replacement coupler in the same orientation as the original and secure it using the spanner. 4. Reassemble the blade housing and jar, then test operation. Use cases a blender that slips or stops turning under load because the coupler teeth are worn or stripped. a damaged coupler after a jam or accidental impact that broke the original driver. Perform routine maintenance when rebuilding or refurbishing a jar assembly to ensure a reliable motortoblade connection. Notes and compatibility reminder Intended specifically for the listed KitchenAid part numbers and models: AP2930430, PS401661, KSB5WH, KSB5, and KSB3 Driver assemblies. Confirm your blender model and part number before to ensure correct fit. Professional, costeffective replacement to get your KitchenAid blender back to reliable operation with the parts and tool needed for a clean swap.