MaxPower 11590 Spindle Assembly Replaces Ariens 21549012, Husqvarna 532-18-72-92, 587125401, Poulan 539-112057 and Many More Replaces OEM #: Ariens 21549012; AYP/Roper/Sears 187292, 192870, 532187290, 532187292, 532192870, 539-112057 Replaces OEM #: Husqvarna 532 18 72-92, 587125401; Poulan 539-112057 Includes (1) spindle assembly for AYP, Craftsman, Husqvarna, Poulan and Ariens Fits: 46 (2) blade decks and some 42 decks Features a 4-hole mount