Hiro is built by the Kawasaki Japanese Company. However, Hiro runs on the Standard Gauge track; while the real D51 engines were built for cape gauge.
- Season 12: Vicarstown Takedown
- Season 13: It's Good To Be Belle (cameo), Rust or Bust and Sam I Am (cameo)
- Season 14: Millie's Castle Hassle (cameo), Quarry Quest (cameo), Hiro and the Heat Wave,