|This article is about a/an monster in Hyakujuu Sentai Gaoranger.|
- ""One-horn! You're not getting away!""
- ―Steam Engine Org after being enlarged and trying to crush Yabaiba underfoot.[src]
The final Baron Org to appear, Steam Engine Org was created near a train station at Sakitomo and was the strongest Org, overpowering the Gaorangers as he withstood their attacks without breaking a sweat. At the last second, Yabaiba attacks Steam Engine Org and holds him for the Hyakujuuken to kill him. Getting the energy he needed, Yabaiba revives Steam Engine Org who wanted to kill him when the Power Animals arrive to fight. However, like before, Steam Engine Org proves too powerful and cripples most of the Power Animals in the process, decimating GaoHunter and GaoMuwcle Striker with ease. The remaining Powers Animals combine into GaoIcarus Another Arm and Leg, who succeed in killing Steam Engine Org with the Icarus Breaker.
- Steam Engine Org is the Final Baron Orgs to appear near end of the series.
- Steam Engine Org were designed by character designer Yoshiro Harada.