Brand new Spindle Assembly Replaces OEM: Ariens: 21546238 AYP: 187292, 192870 Husqvarna: 532 18 72-92, 539 11 20-57 Fits Models: AYP 46, 48 and 54" deck Specs: Height: 7 1/2 " Blade mount is 5 point star shaped Includes top nut, blade bolt & washer, 4 screws and grease zerk Spindle must be greased before operating Pulley washer not included. The old one must be transferred.