Choose the Peterbilt 579 for OTR driver comfort — its 80" sleeper options exceed the Mack Granite's 0" maximum. The Peterbilt 579 offers more peak power (510 hp vs 505 hp), giving it an edge for heavy-haul and mountainous routes.
| Spec | Mack Granite 491 available · from $39,500 | Peterbilt 579 1489 available · from $19,999 |
|---|---|---|
| Engine Options | ||
| Engine options | Mack MP8, Mack MP7, Cummins L9N | PACCAR MX-13, PACCAR MX-11 |
| Horsepower range | NaN–505 hp | 355–510 hp |
| Peak torque | 1,850 lb-ft | 1,850 lb-ft |
| Weight Ratings | ||
| GVWR (max) | — | — |
| GCWR | — | — |
| Transmission Options | ||
| Transmissions | Mack mDRIVE HD | PACCAR 12-Speed Automated Transmission |
| Dimensions | ||
| Wheelbase options | 0 options (undefined"–undefined") | 0 options (undefined"–undefined") |
| Sleeper sizes | ||
Choose the Peterbilt 579 for OTR driver comfort — its 80" sleeper options exceed the Mack Granite's 0" maximum. The Peterbilt 579 offers more peak power (510 hp vs 505 hp), giving it an edge for heavy-haul and mountainous routes.
Both the Mack Granite 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 Mack Granite is built by Mack 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 Mack Granite tops out at 505 hp / 1850 lb-ft torque. The Peterbilt 579 tops out at 510 hp / 1850 lb-ft. GVWR is similar lbs for the Mack Granite and similar lbs for the Peterbilt 579.
TruckRadar has 1,980 Mack Granite 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 | — | $135,000–$185,000 |