Bad Boy Spindle Assembly 037-2000-00 (3-Pack) — Fits MZ 42, MZ Magnum 48 & 54 Zero-Turn Mowers

Three-pack spindle assemblies that serve as direct replacements for OEM part numbers 037-2000-00 and 037-2050-00. Designed for use across all full-size models in the Bad Boy MZ series. Compatible models and years: MZ 42-inch lawn mower (2010–2022), MZ Magnum 48-inch lawn mower (2010–2022), and MZ Magnum 54-inch lawn mower (2013–2022). Spindle specifications: height 5-5/8 inches, shaft diameter 5/8 inch, constructed from high-strength steel.