280-545 Stens Flat Idler Compatible with Lawn-Boy 742512 Toro 742512

280-545 Stens Flat Idler Compatible with Lawn-Boy 742512 and Toro 742512.  Made by an OEM supplier.  For explanation of letters, refer to picture 2. A:4"  B:3 3/8" C:3/8" D:15/16" E:15/16" F:11/16" H:5/32" Heavy DutyTRUE Height 1 1/16" ID3/8" OD4" V:1 1/16".  Fits Toro 38590 and 38591 Snowthrower.