Part Number: W10112253, please double check the product part number you require. Compatibility: Mixer worm gear compatible with KitchenAid 5KSM90, 5KSM45, 5KSM150, 5KSM156, 5K45, 5KPM5, 5KSM125, 5KSM175, 5KSM185. Easy to Install: This mixer worm is easy to operate during installation and does not require a large number of complicated installation tools and installation processes. Premium Quality: Replacement parts are made of durable, high-quality materials to ensure long-lasting and effective performance. Exquisite and Compact: Our mixer worm gear is simple and elegant, with exquisite workmanship, adding a touch of beauty to your equipment during use. Model Number W10112253 Diameter 37mm Weight 17g Model Does not apply Type Mixer Wor.