Craftsman Snowblower Wheel Axle 938-04493 23.30 x 3.70 x 3.00 Genuine OEM Replacement Fits Craftsman MTD. This is a Genuine OEM Craftsman part. Basic InformationPart Name: Snowblower idler pulleyManufacturer: MTDCategory: SnowblowerPrimary Function: Maintains belt tension to ensure smooth and efficient power transfer from the engine to the auger or drive... - Craftsman Snowblower Wheel Axle 938-04493 23.30 x 3.70 x 3.00 Genuine OEM Replacement Fits Craftsman MTD.