| Truck Type | Sleeper Truck |
| Engine Make | Cummins |
| Engine Model | X15 |
| Engine HP | 450 |
| Trans Make | Eaton-Fuller |
| Trans Model | EEO-16F112C12 |
| Suspension Type | Low Low Air Leaf |
| Sleeper Type | High Roof |
| Axle Configuration | Tandem |
| Rear End Ratio | 2.64 |
| Wheelbase | 234 |
| GVWR | 52000 |
| Front Wheels | All Aluminum |
| Trans Speed | 12 Speed Automatic |
| 5th Wheel | Airslide |
| Sleeper Size | 80 |
| Color | White |
| Engine Serial | 80280404 |
| Serial No. | 1XPBD49X2MD754566 |
| Odometer | 345,893 |
Very Clean 2021 Peterbilt 579 Ultraloft. Cummins powered with a 12-speed automatic transmission. Double bunk sleeper complete with a refrigerator. Disc brakes and aluminum wheels all the way around. Please call TLG Peterbilt for pricing and in-house financing information! Photos being used are stock photos. Please ask salesperson for pictures of truck.