The page on The Relics of Jegg-Sau states this one is K103
Talk about it here.
K3 was an ancient Experimental Prototype Robot that was found, and stolen by Robert Eliot Whitman in the 27th century. He intended to use it to help build a colony on the remote planet Jegg-Sau. The colonists activated it and used it to build a workforce of similar robots. The colonists were forced to abandon the planet and abandon the robots, leaving them confused and lonely. Hoping to restore his ancestor's reputation and claim some of the patent royalties, Jeremiah Kettlewell's descendant Ethan Kalwell traced Whitman's robot to the abandoned colony. He found four of the robots. A year after Kalwell's shuttle crashed, Bernice Summerfield also crashed while flying over Jegg-Sau. The robots, driven mad by their isolation, absorbed energy and used it to grow to gigantic size to attack the jets coming to rescue Benny. She tried vainly to contact the jets to get them to call off their attack, but her pleas were unheard. The robots were eventually destroyed. (AUDIO: The Relics of Jegg-Sau)