| Name | Designator | Engine Manufacturer |
|---|---|---|
| 400XT Beechjet | BE4W | BEECH |
| 400XPR Beechjet | BE4W | BEECH |
| Hawker 400XT | BE4W | HAWKER BEECHCRAFT |
| Hawker 400XPR | BE4W | HAWKER BEECHCRAFT |
| 400XPR Beechjet | BE4W | HAWKER BEECHCRAFT |
| 400XT Beechjet | BE4W | NEXTANT |
| Hawker 400XT | BE4W | NEXTANT |
| 400XT Beechjet | BE4W | RAYTHEON |
| 400XPR Beechjet | BE4W | RAYTHEON |
| Hawker 400XT | BE4W | RAYTHEON |
| Hawker 400XPR | BE4W | RAYTHEON |