037-2000-00 / 037-2050-00 Mower Spindle Assembly (3-Pack) for Ba d Boy MZ 42"/48"/54" & MZ Magnum 48"/54" — Replaces Ste ns 285-101

Three spindle assemblies designed as direct replacements for Ba d Boy OEM parts 037-2000-00 and 037-2050-00, also compatible with Ste ns 285-101. Broad fitment covers Ba d Boy MZ deck mowers with 42", 48", and 54" decks, including MZ Magnum 48" and 54" models. Built with heavy-duty bearings and premium materials to deliver robust strength and extended service life. The design reduces operational noise for a quieter, more comfortable mowing experience. Installation is simplified with a streamlined assembly process that requires minimal tools to complete repairs quickly and efficiently.