Snowblower shear bolt, locking nut sold separately. This part has been updated by the manufacturer; it no longer requires a spacer. Shear bolts are designed to break in half if the auger strikes a hard object to prevent damage to the transmission and engine by stopping the auger from turning.
Genuine OEM Part - Manufacturer #588077502
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Shear bolt. Replace the locking nut when replacing the shear bolt. See related item for the correct locking nut.
Genuine OEM Part - Manufacturer #710-0891