Replace that broken 3 pin female connector on your Supra engine harness. This is a direct drop in for the MKIII body harness, but can be applied to any application that uses the round alternator connector. The connectors come with an extra pin.
Its used on the alternators with the round style connector.
Note: Special tooling (crimper) is needed to replace the pins and seals properly, improper crimps can cause wire pull out or reduced capacity. Profession installation is recommended.
Pigtail 
