[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, spacer, 2RS bearing, and pre-filled grease; no additional grease required. [Easy Installation] Mounting holes are pre-tapped for easier installation. Spacer must be installed under the pulley. Installing the spacer on top of the pulley or omitting the spacer may cause damage to 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 variations between the item in the picture and the actual product. Measurement error allowance is +/- 1-3cm.