[FIT] Fits Husqvarna, Sears, Craftsman, Ariens, Oregon, AYP 42-inch, 46-inch, 48-inch, and 54-inch decks. Compatible with 54-inch Poulan Pro P54ZX. [COMPATIBLE] Lawn tractors and mowers with 4-screw models: 187292, 192870, 532187281, 532187292, 532192870, 539112057, 587125401, 587253301. Ariens: 21546238, 21546299, 21549012. Husqvarna: 192870, 532187281, 532187292, 532192870, 539112057, 53911207, 587125401, 587253301. McCulloch: 532192870. Dixon: 532187292, 532192870. Raisman: 80-12-001. Rotary: 11590. Oregon: 82-026 and others. [WELL-BUILT] Blade mount: 5-point star shaped. Replacement part is high quality, durable, and corrosion resistant. Includes top nut, spindle assembly, blade bolt kit, mounting bolts, grease zerk, pulley locknuts, sp, 2RS bearing, and pre-filled grease; no additional grease required. [EASY INSTALLATION] Mounting holes are pre-tapped for easier installation. Sp must be installed under the pulley. Installing the sp on top of the pulley or omitting the sp may damage the shaft and pulley. Overall Height: 7-1/2 inches (190mm, includes grease zerk) Mounting Hole Distance: 5-5/8 inches (143mm) Color: Silver Material: Aluminum alloy Package Contents: 1 x Spindle 1 x Blade Bolt 4 x Mounting Bolts Note: Light shooting and different displays may cause slight color variation between item and image. Measurement allowance is +/- 1-3cm.