Choose the Peterbilt 579 for OTR driver comfort — its 80" sleeper options exceed the Peterbilt 389's 78" maximum. The Peterbilt 579 offers more peak power (510 hp vs 0 hp), giving it an edge for heavy-haul and mountainous routes. The Peterbilt 579 starts at a lower base MSRP ($135k vs $155k), offering better entry-level value.
| Spec | Peterbilt 389 271 available · from $46,950 | Peterbilt 579 1489 available · from $19,999 |
|---|---|---|
| Engine Options | ||
| Engine options | — | PACCAR MX-13, PACCAR MX-11 |
| Horsepower range | — | 355–510 hp |
| Peak torque | — | 1,850 lb-ft |
| Weight Ratings | ||
| GVWR (max) | — | — |
| GCWR | — | — |
| Transmission Options | ||
| Transmissions | — | PACCAR 12-Speed Automated Transmission |
| Dimensions | ||
| Wheelbase options | 0 options (undefined"–undefined") | 0 options (undefined"–undefined") |
| Sleeper sizes | 72", 78" | |
Choose the Peterbilt 579 for OTR driver comfort — its 80" sleeper options exceed the Peterbilt 389's 78" maximum. The Peterbilt 579 offers more peak power (510 hp vs 0 hp), giving it an edge for heavy-haul and mountainous routes. The Peterbilt 579 starts at a lower base MSRP ($135k vs $155k), offering better entry-level value.
Both the Peterbilt 389 and Peterbilt 579 hold strong resale value among owner-operators and fleets. Resale depends heavily on mileage, maintenance history, and regional demand — not OEM brand alone. Check current listings on TruckRadar for real-world asking prices.
No. The Peterbilt 389 is built by Peterbilt and the Peterbilt 579 is built by Peterbilt. Both are Class 8 conventional tractors but differ in powertrain options, cab dimensions, dealer networks, and MSRP.
The Peterbilt 389 tops out at 0 hp / 0 lb-ft torque. The Peterbilt 579 tops out at 510 hp / 1850 lb-ft. GVWR is similar lbs for the Peterbilt 389 and similar lbs for the Peterbilt 579.
TruckRadar has 1,760 Peterbilt 389 and Peterbilt 579 trucks available right now from dealers nationwide. Search by make, model, price, and location at truckradar.ai.
| 80" |
| Pricing (estimated) |
| Base MSRP range | $155,000–$215,000 | $135,000–$185,000 |