MTD Authorized Substitution
The part number 647-0021 has been changed to part number 647-0021-0637. While the new part may look different, this is a MTD approved substitution.
Please note that the price and availability shown is for the new part number 647-0021-0637.
Part number 647-0021-0637 has been discontinued by MTD. We apologize for the inconvenience.
|Old Part Number||647-0021|
|New Part Number||647-0021-0637|