ARBOC Mobility

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Arboc Mobility
Guelph Transit 35-a.jpg
Years of manufacture 2008 to present
Length 23 to 28 feet
Width 96 inches
Height 110 inches
Power/Fuel Gasoline, and Hybrid
Guelph Transit 35-b.jpg

The Arboc Mobility (known as Spirit of Mobility until 2021) is a low floor cutaway bus for the shuttle and paratransit market. The bus is manufactured by All American Group (formerly Coachmen Industries) and uses a modified GMC/Chevrolet 3500 or 4500 chassis. The Mobility claims to be the first true low-floor kneeling cutaway bus with rear-wheel drive without the use of a transfer case.[1]

The Mobility uses a tubular steel cage structure and fully laminated body. It may be powered by a standard diesel, standard gasoline, diesel-electric hybrid, or gasoline-electric hybrid drivetrain. The hybrid drivetrain options were launched in 2010. The diesel chassis was discontinued in 2016.

In late 2014, the bus received a facelift with new tail lights, a more sleek swept, destination space, along with the option for flush-mounted windows.


Model number Length
Fuel Availability
SOM 23 23 Gasoline 2017-current
SOM 26 26 Gasoline 2017-current
SOM 28 28 Gasoline 2017-current
SOM21D 21 Diesel 2008-2016
SOM21G 21 Gasoline 2008-2016
SOM23D 23 Diesel 2008-2016
SOM23G 23 Gasoline 2008-2016
SOM26D 26 Diesel 2008-2016
SOM26G 26 Gasoline 2008-2016
SOM28D 28 Diesel 2008-2016
SOM28G 28 Gasoline 2008-2016




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Demonstrator and engineering units

Below is a list of known demonstrator and engineering buses

Fleet number Thumbnail Year VIN Engine Transmission Notes
2008 1GBKG31K781166323 GMC Vortec 6.0L GM 4L80-E 4 speed automatic
  • SOM23G model.
  • Altoona tested from July 30, 2008 until January 9, 2009.
Trenton Transit A-a.jpg 2009 GM Duramax 6.6L GM 6L90 6 speed automatic Sold to Trenton Transit.
2010 1GB9G5AG3A1104493 GM CNG 6.0L GM
  • CNG Hybrid
  • SOM236 model.
  • Altoona tested from July 9, 2010 until December 14, 2010.
2010 GM Duramax 6.6L GM Demoed with DRT sometime in July 2010.
2010 GM Duramax 6.6L Demonstrated with Coast Mountain Bus Company.
Trenton Transit B-a.jpg 2011 GM Duramax 6.6L GM 6L90 6 speed automatic Sold to Trenton Transit.
Guelph Transit 34-a.jpg 2011 GM Duramax 6.6L GM 6L90 6 speed automatic Sold to Guelph Transit in late 2012.
2012 Sold to Swift Current Tele-Bus.
2014 Displayed at 2014 BusCon.
2015 1GB6G5BG0E1197223 GM Vortec 6.0L Sold to University of Colorado Buff Bus 20 in 2016.
2021 1HA6GVC77MN000786 GM 6.6L GM 6 speed automatic
  • Altoona tested from March 2021 until April 2021.

External links


  1. ARBOC awarded contracts for low-floor kneeling bus,, retrieved on 2010-08-08