MTD Snowblower Helical Gear 717-04667B

Basic information

• Part name: Helical gear
• Manufacturer: MTD
• Category: Snowblower drivetrain part
• Primary function: Transfers rotational power through the drive system with angled teeth for smoother engagement

Technical specifications

• Tooth count: 14-tooth

Installation & compatibility

• Compatible models: Fits select MTD and Craftsman 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 helical gear, part number 717-04667B, meshes with mating gears to transmit power while reducing noise and vibration compared to straight-cut gears. Proper tooth engagement helps maintain smooth operation and consistent drive performance.

If the snowblower slips, loses drive, or produces grinding or whining noises, the helical gear may be worn, chipped, or damaged. Uneven tooth wear or visible damage can interfere with proper meshing.

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

Helical gear 717-04667B replaces part number 717-04667.