Iron 'Arry (also labelled as 'Arry) is a diesel.
- TrackMaster model (2009-2011 - US; 2010-2011 - UK)
- TrackMaster by Fisher-Price model (new body design and motor) (2012-2014 - UK/US)
- Iron 'Arry with Black Truck (Thomas TrackMaster [HiT Toy Company])
- Iron 'Arry with Red Van (TrackMaster [Fisher-Price])
- Iron 'Arry (TrackMaster [Fisher-Price])
- 'Arry has Iron Bert's face.
- 'Arry is one of the few models which doesn't have moving side-rods.