Trying to confirm that this is on a 1991 Mariner 30 hp. Serial #0D066537. Any help is greatly appreciated. Also would a lower unit coming from a motor bearing serial #OB114952 with a lower unit stamped 1665-8668-C1 work on the 91 Mariner. In addition have access to lower unit stamped #1665-8668-02.<br /><br /><br />Thanks,<br /><br />Mike
