Spindle Assembly fits Bad Boy 037-2000-00 Bad Boy MZ42 MZ Magnum 48 MZ Magnum 54

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One New Aftermarket Replacement Spindle Assembly for Bad Boy MZ and MZ Magnum Zero-Turn MowersThis deck spindle assembly is a direct replacement for Bad Boy zero-turn mowers, suppo rting blade rotation on 42", 48", and 54" cutting decks. The spindle fits the full Bad Boy MZ and MZ Magnum series, as well as all ZT Avenger models and 2016-2017 36" Stand-On models. It features double-sealed, pre-greased bearings and an aluminum housing for lasting performance in demanding mowing conditions.Specifications Height: 5-5/8" Outer Diameter (O.D.): 5-1/4" Shaft I.D.: 0.87" (7/8") Housing: Aluminum Compatible ModelsBad Boy MZ Series: MZ42 (2010 and newer), MZ48, MZ54Bad Boy MZ Magnum Series: MZ Magnum 48, MZ Magnum 54 (2013 and newer)Bad Boy ZT Avenger Series: ZT Avenger 54", ZT Avenger 60" (2020 and newer)Bad Boy MZ Rambler Series: All MZ Rambler modelsBad Boy Stand-On: 36" Stand-On (2016-2017 only)Always verify your model and serial number against the parts diagram before ordering to confirm fitment for your specific unit.Replaces Part Number(s):Bad Boy 037-2000-00, Bad Boy 037-2050-00Aftermarket Interchange NumbersRotary 15215, Fits Stens 285-101New aftermarket replacement part - not remanufactured, not used. Show more