Because of constraints in the current Maintenance & Operations Facility, DASH only uses vehicles from two manufacturers, Orion and Gillig, and is essentially restricted to 35', 96", high-floor buses. A new M&O facility will be completed in October 2009 that will allow the company to introduce low-floor diesel-electric hybrid buses, possibly including 40' buses, into its fleet.
| UNIT # | YEAR | MANUFACTURER | MODEL | LENGTH | FUEL | NOTES |
| 1-17 | 1984 | ORION | I | 30 | D | RETIRED |
| 18-19 | 1986 | ORION | I | 35 | D | RETIRED |
| 20-33 | 1991 | ORION | I | 35 | D | RETIRED |
| 34-43 | 1996 | GILLIG | PHANTOM | 35 | D | Some units retired |
| 44-53 | 1998 | GILLIG | PHANTOM | 35 | D | |
| 54-58 | 1999 | GILLIG | PHANTOM | 35 | D | |
| 59-68 | 2000 | ORION | V | 35 | D | |
| 69-76 | 2003 | ORION | V | 35 | D | |
| 77-90 | 2005 | ORION | V | 35 | D | #88 on long-term disability as of 5/16/08 |
| 91-99 | 2008 | ORION | V | 35 | D | |
| 100-103 | 2007 | GILLIG | PHANTOM | 35 | D | Numbered as such to allow continuity in Orion V fleet (59-99) |