Here are the diagrams and repair parts for Official Craftsman 143104121 gas engine, as well as links to manuals and error code tables, if available.
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Basic engine diagram
Part #26957
The manufacturer no longer makes this part, and there's no substitute part
Basic engine diagram
Part #29918
The manufacturer no longer makes this part, and there's no substitute part
Basic engine diagram
Part #28602
The manufacturer no longer makes this part, and there's no substitute part
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