PROBLEM-SOLVING: The W10112253 Blender Worm Gear Fixes The Following Symptoms: Unresponsive Touchpad, An Affordable Way To Extend The Life Of Your Machine And Keep Your Blender Up And Running Efficiently. PRODUCT QUALITY:This Worm Gear (Part Number Wpw10112253) For Stand Mixers, Diameter: Approx. 3.5 Cm / 1.4 Inches, Is Made Of Durable Stainless Steel And Nylon To Ensure A Better Connection To The Mixer Shaft And To Withstand The Wear And Tear Of Time. COMPATIBLE WITH:It Perfectly Fits Most Top Brands Kitchenaid, Whirlpool, Kenmore, Etc. And Replaces Part Numbers: 4161531, 4162897, 4169830, W10112253, WPW10112253VP, 1206513, AP6015102, PS11748374, EAP11748374. EASY INSTALLATION:You Can Find The YT Video How To Change Part W10112253, Unplug The Mixer Before Installing This Part. Wear Work Gloves To Protect Your Hands. QUALITY ASSURANCE: This Is A Replacement For A Manufacturer'S Specific Design, But Is Functionally Equivalent To The Original Part, Which Has Been Internally Tested To Meet Or Exceed The Performance Of The Oem Replacement. PROBLEM-SOLVING: The W10112253 Blender Worm Gear Fixes The Following Symptoms: Unresponsive Touchpad, An Affordable Way To Extend The Life Of Your Machine And Keep Your Blender Up And Running Efficiently.