Craftsman Snowblower Gear Housing, Left 918-0435 Genuine OEM Replacement Fits Craftsman MTD. This is a Genuine OEM Craftsman part. Basic informationPart name: Snowblower gear housing, leftManufacturer: MTDCategory: Snowblower drivetrain and support componentsPrimary function: Houses and supports the left side of the gear assembly to keep dri... - Craftsman Snowblower Gear Housing, Left 918-0435 Genuine OEM Replacement Fits Craftsman MTD.