D-Structs is a black and grey T-Trux who hates Ty Rux and his friends, among other things such as Dragonflopters. Before he met Ty, he was responsible for turning Blayde, who was Dozer's best friend at the time, against her own herd by attacking them and destroying their mounds, which gave the latter Dozeratops a long-lasting hatred of the T-Trux. He is cold, ruthless, and doesn't like to fail or share but loves to smash things, as shown in episode one and onwards. He is always bullying Skrap-It, who is one of the Scraptools that works for him, though he does seem to be otherwise fairly tolerant of Skrap-It, and also trying to destroy Ty and the other Dinotrux.
- D-Structs is a powerful T-Trux with a notable regard for the heritage of his species, as he considers Ty's heroics to give all T-Trux a bad name.
- In Season 2, he had a small saw blade on his tail until he replaced it with a grappling hook-like claw.
- In the last episode before the beginning of Season 3, he brought together a destructive team with Blayde, Splitter and a Poundersaurolophus.
- However, D-Structs's crew was banished from the crater, leaving D-Structs alone with Skrap-It again and wanting revenge.