This is a A-B1SB11815 PULLEY, FLAT IDLER, 3/8"X7/32" PN: B1SB11815Main Description As Following : A-B1SB11815 PULLEY, FLAT IDLER, 3/8"X7/32" P.N: B1SB11815 Height: 2-7/16"Inside Diameter: 5/8"Outside Diameter: 5-3/4"Replaces: Exmark: 1-413099, 116-4666; Toro: 1-419099 Crossed From: 1-413099 EXMARK , 1-419099 TORO / WHEEL HORSE , 116-4666 EXMARK , 1164666 EXMARK , 11815 ROTARY , 1413099 EXMARK , 1419099 TORO / WHEEL HORSE , 280-886 STENS , 280886 STENS Found in Section & Models : Tractor Parts Associated Items : New Also This is An Aftermarket Product And : High Quality Afternaket Shipped from Both US and Canada