Briggs & Stratton Authorized Substitution
The part number MS3521 has been changed to part number MS4038. While the new part may look different, this is a Briggs & Stratton approved substitution.
Please note that the price and availability shown is for the new part number MS4038.
|Brand||Briggs & Stratton|
|Old Part Number||MS3521|
|New Part Number||MS4038|