The MTD 6170007 Gearbox Assembly is a genuine OEM replacement part designed for a wide range of MTD snow thrower models. This complete gearbox unit is crucial for the proper function of the snow thrower's drive system, facilitating efficient power transfer to the augers or wheels. Manufactured to MTD's specifications, it ensures optimal performance and durability for demanding winter conditions. Confirm fitment with your specific MTD snow thrower model for correct application.