- Name: Steam Robo (スチームロボ )
- Number: MR-05
- Height: 15.88m
- Weight: 1,215 t
- Speed: 118 kph
- Weapons: Oxidation Smoke Discharger, 4D Warp Teleporter
- Transformation: JNR Class D51
- Voice: Kenichi Ono (Machine Robo: Battle Hackers ep 14)
- The train that he is based on, D51 47 is preserved in Minami Park in Iwamizawa, Hokkaido.
- His GoBots counterpart is Loco.