How to Replace a Snowblower Shear Pin



This step-by-step repair guide shows how to replace a snowblower shear pin. If hard-packed snow or a foreign object jams the auger, the snowblower shear pin breaks to protect the engine from damage. Once the shear pin breaks, the auger is no longer attached to the snowblower drive shaft and won’t rotate. Replace the broken shear pin with a manufacturer-approved replacement part.

You can use the steps in this guide to replace broken shear pins on Craftsman, Husqvarna, Troybilt, Murry, MTD, Toro, Poulan, Ariens and Cub Cadet snowblowers.

Repair difficulty:
Time required:

Less than 15 min.

Parts Required:

  • Shear pin

For manuals, repair guides, and specific part recommendations, enter your model number.

Tools Required:

  • ½-inch wrench
  • Hammer
  • Nail

Before you begin

Check for replacement shear pins stored in a bracket on the control panel.


 Warning: Undertaking repairs to appliances can be hazardous. Use the proper tools and safety equipment noted in the guide and follow all instructions. Do not proceed until you are confident that you understand all of the steps and are capable of completing the repair. Some repairs should only be performed by a qualified technician.

Step 1: Disconnect the spark plug wire

Pull the wire straight up and off of the plug. 

Step 2: Remove the broken shear pin

Remove the broken shear pin, using a hammer and nail to completely clear the hole of any pieces.

Step 3: Insert the new shear pin

Realign the holes in the auger and the shaft. Insert the new shear pin and secure it with the bow tie pin.

Step 4: Test the auger

Reconnect the spark plug wire. Start the engine and test the operation of the auger.