MTD Authorized Substitution
The part number 638-04040-0637 has been changed to part number 938-04040-0637. 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 938-04040-0637.
|Old Part Number||638-04040-0637|
|New Part Number||938-04040-0637|