Fit for Husqvarna, Sears, Craftsman, Ariens, Oregon, and AYP 42-inch, 46-inch, 48-inch, and 54-inch decks. Compatible with 54-inch Poulan Pro P54ZX. Fits lawn tractors and mowers with 4 screws: 187292, 192870, 532187281, 532187292, 532192870, 532192870, 539112057, 587125401, 587253301. Ariens models: 21546238, 21546299, 21549012. Husqvarna models: 192870, 532187281, 532187292, 532192870, 539112057, 53911207, 587125401, 587253301. McCulloch model: 532 19 28-70. Dixon models: 532187292, 532192870. Raisman model: 80-12-001. Rotary model: 11590. Oregon model: 82-026 and others. Blade mount features a 5-point star shape. Replacement part is high quality, durable, and corrosion resistant. Includes top nut, spindle assemblies, blade bolts kit, mounting bolts, grease zerk, pulley locknuts, sp, 2RS bearing, and pre-filled grease; no additional grease required. Mounting holes are pre-tapped for easier installation. Sp must be installed under the pulley; installing with sp on top of the pulley or omitting the sp may damage the shaft and pulley. Overall height: 7-1/2 inches (190mm), including grease zerk. Mounting hole distance: 5-5/8 inches (143mm). Color: silver. Material: aluminum alloy. Package includes: 1 x spindle, 1 x blade bolt, 4 x mounting bolts. Only items listed are included; other products not included. Note: Lighting and display differences may cause slight color variations between image and actual item. Measurement error allowance: +/- 1-3cm.