Deck Idler Pulley Bearings Compatible with Toro Models: 74812 TITAN Z4800 Zero-Turn-Radius Riding Mower 2007-2008 (SN: 270000001-280999999) 48" 74814 TITAN Z5200 Zero-Turn-Radius Riding Mower 2007 (SN: 270000001-270999999) 52" 74815 TITAN Z5200 Zero-Turn-Radius Riding Mower 2009 (SN: 290000001-290999999) 52" 74815 TITAN Z5200 Zero-Turn-Radius Riding Mower 2008 (SN: 280000001-280999999) 52" 74813 TITAN Z4800 Zero-Turn-Radius Riding Mower 2008 (SN: 280000001-280999999) 48" 74813 TITAN Z4800 Zero-Turn-Radius Riding Mower 2009 (SN: 290000001-290999999) 48" 74818 TITAN Z5200 Zero-Turn-Radius Riding Mower 2008 (SN: 280000001-280999999) 52" 74816 TITAN Z4800 Zero-Turn-Radius Riding Mower 2008 (SN: 280000001-280999999) 48" 37-06BA04 30" Bagger 100 Series 1993 (SN: 39000001-39999999) Order Includes : 2 x Bearing : 109-3658, 109-8891, 387820, 1001048, 1120423, 109966, 702581, 251-277, 108-3765, 61-8780, 73-5850 Width : 12 mm - 0.47 in Inner Diameter : 17 mm - 0.66 in Outer Diameter : 40 mm - 1.57 in