AYP/Poulan Authorized Substitution
The part number 539 10 78-57 has been changed to part number 539107857. While the new part may look different, this is a AYP/Poulan approved substitution.
Please note that the price and availability shown is for the new part number 539107857.
|Old Part Number||539 10 78-57|
|New Part Number||539107857|