| MCI D-Series | |
|---|---|
 Greyhound Lines MCI 102-DL3 #6590 before remanufacturing | |
| Overview | |
| Manufacturer | Motor Coach Industries |
| Also called | Intercity Cruiser Commuter Cruiser Classic American Coach |
| Production | 1992-present |
| Assembly | Crookston, Minnesota, United States Pembina, North Dakota, United States |
| Body and chassis | |
| Class | Tri-axle coach |
| Body style | Single-decker coach |
| Doors | 1 or 2 with optional wheelchair lift door |
| Floor type | High-floor |
| Chassis | MCI special platform integral |
| Powertrain | |
| Engine | Detroit Diesel Series 60, Caterpillar C10, Caterpillar 3176B, Caterpillar C12, Caterpillar C13, Cummins M11, Cummins ISL, Cummins ISM, Cummins ISX, battery-electric bus |
| Capacity | 40-foot models: 38-53 45-foot models: 50-61 |
| Dimensions | |
| Length | 40 feet (12 m) 45 feet (14 m) |
| Width | 102 inches (2.6 m) |
| Height |
|
| Curb weight | 35,100 lbs, GVWR 44,400 lbs OR 48,000 lbs |
| Chronology | |
| Predecessor |
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The MCI D-Series is a model of motorcoach bus produced by Motor Coach Industries (MCI). The bus is primarily used by private companies operating scheduled service or commuter buses, government agencies for the transport of prisoners, and in more recent years, public transit agencies who use them on express routes. It is sold alongside the MCI J-Series bus, primarily used by tour and charter operators.
The D-Series was introduced in February 1992 as MCI's first 45-foot (14 m) motorcoach, enabled by a December 1991 law change that allowed the additional length. The coach replaced the B- and C-Series models, which were equipped with obsolete two-stroke engines.