MTD 956-3045A Riding Mower Idler Pulley 5.06" supports proper belt tension for consistent and efficient mower performance. This replacement idler pulley is designed to guide the drive belt and maintain the correct level of tension as the mower operates, helping power transfer smoothly between connected components. By reducing belt slippage and supporting accurate belt alignment, it co... https://www.wholetoolbox.com/mtd-956-3045a-riding-mower-idler-pulley-5-06