MTD Snowblower Pinion Gear 717-04129A

Basic information

• Part name: Pinion gear
• Manufacturer: MTD
• Category: Snowblower drivetrain part
• Primary function: Transfers rotational power through the drive system by meshing with mating gears

Technical specifications

• Tooth count: 16-tooth

Installation & compatibility

• Compatible models: Fits select MTD and Troy-Bilt snowblower models; confirm compatibility using your models parts diagrams
• Installation difficulty: Medium; requires accessing the drivetrain to remove and install the gear
• Tools required: Wrench set and socket set

Additional information

This pinion gear, part number 717-04129A, meshes with mating gears in the drive system to transmit power and maintain proper gear ratios during operation. Accurate tooth engagement helps support smooth power transfer and consistent drive performance.

If the snowblower slips, loses drive, or makes grinding or clicking noises from the drivetrain, the pinion gear may be worn, chipped, or damaged. Uneven tooth wear or visible damage can also affect how well the gear meshes.

Before starting the repair, disconnect the spark plug wire to prevent accidental starting. Install the pinion gear in the correct orientation and confirm it meshes smoothly with mating components before reassembling the drive system.