MTD Snowblower Auger Worm Gear Shaft 738-0275

Basic information

• Part name: Auger worm gear shaft
• Manufacturer: MTD
• Category: Snowblower auger and drivetrain part
• Primary function: Transfers rotational power through the worm gear to drive the auger system

Installation & compatibility

• Compatible models: Fits select MTD, Craftsman, Troy-Bilt, and Yard-Man snowblower models; confirm compatibility using your models parts diagrams
• Installation difficulty: Medium; requires accessing the auger gearbox to remove and install the shaft
• Tools required: Wrench set and socket set

Additional information

This auger worm gear shaft, part number 738-0275, works with the mating worm gear inside the auger gearbox to transmit power from the drive system to the augers. Proper shaft alignment helps ensure smooth gear engagement and consistent auger rotation during operation.

If the augers do not turn, bind under load, or you hear grinding or clicking noises from the auger gearbox, the worm gear shaft may be worn, bent, or damaged. Excessive play or uneven movement can also indicate internal drivetrain issues.

Before starting the repair, disconnect the spark plug wire to prevent accidental starting. Open the auger gearbox carefully, install the worm gear shaft in the correct orientation, and confirm smooth gear engagement before reassembling the housing.