Titanium Twister will fit any of these KitchenAid Mixers models:
K5AB, K4SS, K5(A), K5SS, KG25G7X, KG25HOX, KG23H3X, KP50PS, KSM450, KSM455, KSM5, KSM50HDP, and KSM500
Reminder: The Titanium Twister is only for the 5 quart lift-bowl mixers, not tilt- head.
A tip on finding the perfect match for your KitchenAid Mixers:
Look at the first 4 or 5 letters and if they match any of these then it should fit. For example: Model number is KG25G. This is seen in KG25G7X. It will fit.