The replacement part is made of high quality aluminum alloy, durable and corrosion resistant. Includes Top Nut, spindle assemblies, blade kit, Mounting & grease zerk, pulley locknuts, .Mounting holes have been -tapped for easier installation, must be installed under the pulley. Installing with the on top of the pulley (or failing to use ) will in damage to shaft and pulley.for , sears, , , & ayp 42 inch , 46 inch , 48 inch and 54 inch decks. Fits for 54 inch P54ZX.for ayp\/ 42 inch , 46 inch , 48 inch and 54 inch deck lawn & mowers Models with 4 Screws: 187292, 192870, 532187281, 532187292, 532192870, 539112057, 587125401, 587253301. : 21546238, 21546299, 21549012. : 192870, 532187281, 532187292, 532192870, 539112057, 53911207, 587125401, 587253301. : 532 19 28-70. : 532187292 532192870. 80-12-001. 11590. 82-026 and others.Colour:silverMaterial:Aluminum alloyPackage Contents:1 x Spindle AssemblyOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +\/- 1-3cm.