[FIT] Compatible with Husqvarna, Sears, Craftsman, Ariens, Oregon, and AYP 42-inch, 46-inch, 48-inch, and 54-inch decks. Fits 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 assemblies, blade bolts kit, mounting bolts, grease zerk, pulley locknuts, spacer, 2RS bearing, 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 spacer on top of the pulley or omitting spacer may damage 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. Only items listed are included; other products not included. Note: Lighting and display differences may cause slight color variation between image and actual item. Measurement allowance: +/- 1-3cm.