MTD Snowblower Gear 917-04210

Basic information

• Part name: Snowblower gear
• Manufacturer: MTD
• Category: Snowblower drive and transmission parts
• Primary function: Transfers motion and torque between components in the snowblowers drivetrain

Technical specifications

• Number of teeth: 56

Installation & compatibility

• Compatible models: Fits select MTD, Craftsman, and Yard-Man snowblowers; confirm compatibility using your models parts diagrams
• Installation difficulty: Medium; requires accessing the drivetrain and positioning the gear on its shaft
• Tools required: Wrench set, socket set, pliers

Additional information

This snowblower gear, part number 917-04210, meshes with other gears to transfer rotational force through the drivetrain, helping power the auger, wheels, or other driven components. The 56-tooth configuration fits the intended gear train to maintain correct speed and torque relationships in the system.

If the gears teeth wear, chip, or become damaged, the gear mesh can feel rough or inconsistent, which may cause noise, vibration, or uneven power delivery. You might notice slipping engagement, resistance during drive changes, or unusual sounds coming from the drivetrain if the gear is compromised.

Disconnect the spark plug wire before starting the repair to prevent accidental startup. Gear and drive components can have sharp edges, so wearing work gloves can help protect your hands during installation. Make sure the gear is fully seated on its shaft and meshes cleanly with mating gears before using the snowblower.

Snowblower gear 917-04210 replaces part number 717-04210.