Briggs and Stratton 61E977 parts by spec number.
Engine spec
61E977-0001-J1
61E977-0002-J1
61E977-0003-J1
61E977-0004-J1
61E977-0005-J1
61E977-0006-J1
61E977-0007-J1
61E977-0008-J1
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