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MTD Authorized Substitution
The part number 15991 has been changed to part number 15991A-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 15991A-0637.
Part number 15991A-0637 has been discontinued by MTD. We apologize for the inconvenience.
|Old Part Number||15991|
|New Part Number||15991A-0637|