While you wait for answers, we may have found some information which could help you.
Click here for Kitchenaid Blender Coupler
How do you fix a motor on a Kitchen Aid blender "KSB3WH3"?
Kitchenaid Mixer will not turn on?
Blender lights flashing and smoking?
how do I replace the power cord on a k5-a # 58-58248?
Is my motor gone on my kitchen aid classic k45?
Replace a Cord on a Kitchenaid 4c mixer?