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.
V-Belt-Auger/Impeller
V-belt.traction
Snowblower impeller
Auger
Auger.weld.rib.but.lh.