Rotary 15731 Flat Idler Pulley 5-3/4" Replaces Exmark 126-9187 116-4665 & Toro 136-5405 by Rotary $43.93 Save Liquid error (snippets/product-badge line 32): Computation results in '-Infinity'% 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart PRODUCT INFORMATION Type Idler Pulley PRODUCT DESCRIPTION Brand new Rotary flat idler pulley replacement part. Fits Exmark 126-9187, 116-4665, and Toro 136-5405. Outside Diameter: 5-3/4", Width: 1-1/2", Inside Diameter: 11/16". Quality aftermarket alternative for Lazer Z and compatible equipment.