- 2013 (Updated face, curved edges, and longer magnet guards.)
- 2018 (No paint on chassis and various other spots, single bogie, printing on front bufferbeam, more wooden body, no headlamp, flat rectangular tender)
- Lost and Found Hiro (2009)
- Patchwork Hiro (2009)
- Early Engineers Hiro (2011)
- Metallic Hiro (2012)
- Battery-Operated Hiro (2013)
- Milk Covered Hiro (2014)
- Hiro's tender is the same base model as Sam's and Hank's.
- Hiro's Character Card does not show his tender.
- Hiro shares the body of his 2018 model with Gordon.