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Compatibility
This part will fit the following 640 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
MTDMTD 310183 - MTD Snow Thrower (1990)21"
MTDMTD 317-190-000 - MTD Snow Thrower (1987)21" Snow Throwers
MTDMTD 317-181-122 - MTD Snow Thrower (1987) (Caldor)21" Snow Throwers
MTDMTD 317-181-205 - MTD Snow Thrower (1987) (Mid States Distributor)21" Snow Throwers
MTDMTD 317-180-000 - MTD Snow Thrower (1987)21" Snow Throwers
Description
The purpose of the Pin is to fasten objects together, typically as a shaft meant to be inserted into a slot. If subjected to substantial torque, many pins are designed to break in order to protect other components. Some types of pins, like a shear pin, are very uniquely built for their purpose and must be purchased from the OEM/Manufacturer. We always suggest purchasing replacement pins from a genuine OEM original parts dealer, like us, to ensure they fit exactly as intended for safe operation by the OEM.