10738 John Deere V-Belt Idler Pulley. Replaces GX20286, Also fits Sabre models: 14542GS, 1642HS, 1742HS, 17542HS lawn tractors. Also fits Scotts models: L1742, L17542, L2048 & L2548 lawn tractors.
Size: 3-7/64" OD, 11/16" ID, 21/32" Height