[FIT] Compatible with Husqvarna, Sears, Craftsman, Ariens, Oregon, AYP, Poulan Pro, and McCulloch 42-inch, 46-inch, 48-inch, and 54-inch decks. Fits Poulan Pro P54ZX 54-inch decks. [COMPATIBLE] Lawn tractors and mowers with 4-screw models: 187292, 192870, 532187281, 532187292, 532192870, 539112057, 53911207, 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. [WELL-BUILT] Blade mount features a 5-point star shape. 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 greasing required. [EASY INSTALLATION] Mounting holes are pre-tapped for easy installation. Spacer must be installed under the pulley. Installing the spacer on top of the pulley or omitting the spacer may damage the shaft and pulley. Overall height: 7.5 inches (190mm, including grease zerk). Mounting hole distance: 5.625 inches (143mm). Color: Silver. Material: Aluminum alloy. [PACKAGE CONTENTS] 1 x Spindle Assembly, 1 x Blade Bolt, 4 x Mounting Bolts. Package includes only the items listed; other products not included. Note: Lighting and display settings may cause slight color variations between the image and the actual item. Measurement error allowance: +/- 1–3 cm.