??Compatible with??Compatible with husqvarna, sears, craftsman, ariens, oregon & ayp 42″, 46″, 48″ and 54″ decks. Fits for 54″ poulan pro P54ZX. ??Compatible??Compatible with ayp/electrolux 42″, 46″, 48″ and 54″ deck lawn tractors & mowers Models With 4 Screws: 187292, 192870, 532187281, 532187292, 532192870, 539112057, 587125401, 587253301. ariens: 21546238, 21546299, 21549012. husqvarna: 192870, 532187281, 532187292, 532192870, 539112057, 53911207, 587125401, 587253301??965881301. mcculloch: 532 19 28-70. dixon: 532187292 532192870. raisman 80-12-001. 11590. oregon 82-026 and others. ??Well-Built??Length 7-1/2″(20cm). Blade mound: 5 point star shaped. The replacement part is made of high quality aluminum alloy, durable and corrosion resistant. Includes Top Nut, spindle assemblies, blade bolts kit, Mounting Bolts & grease zerk, pulley locknuts, spacer. ??Easy Installation??Mounting holes have been pre-tapped for easier installation, Spacer must be installed under the pulley. Instal