Genuine John Deere V- Idler Pulley, AM118447 NOT AN AFTERMARKET REPLACEMENT! Pulley Specs: Effective Diameter: 3.705 IN Groove Width: 0.630 IN Bore Size: 0.669 IN Material: STEEL Used on Many Models: 325, 335, 345, 355D D105, D110, D125, D140, D150, D160, D170 GT225, GT235, GT235E, GT245 GX325, GX335, GX345 L105, L107 L110, L111 L118, L120 L130 LA100, LA110, LA120, LA130, LA140 LA150 LX255, LX266, LX277, LX279, LX288 X300, X350, X380, X384, X394 X465, X475, X485, X495, X540, X575, X585, X595, X700, X720, X724, X728, X740, X744, X748 Z425, Z435, Z445, Z525E, Z535M And Many More! If you have any questions about compatibility, please dont hesitate to contact us.