Here are the diagrams and repair parts for Official Craftsman 13953737 3-channel vanity transmitter, as well as links to manuals and error code tables, if available.
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Unit parts diagram
Part #10A14
The manufacturer no longer makes this part, and there's no substitute part
Unit parts diagram
Part #41A3423
The manufacturer no longer makes this part, and there's no substitute part
Unit parts diagram
Part #41D3192
The manufacturer no longer makes this part, and there's no substitute part
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