Choose the Peterbilt 589 for OTR driver comfort — its 80" sleeper options exceed the Mack Granite's 0" maximum. The Peterbilt 589 offers more peak power (605 hp vs 505 hp), giving it an edge for heavy-haul and mountainous routes.
| Spec | Mack Granite 243 available · from $39,500 | Peterbilt 589 257 available · from $150,000 |
|---|---|---|
| Engine Options | ||
| Engine options | Mack MP8, Mack MP7, Cummins L9N | PACCAR MX-13, Cummins X15 |
| Horsepower range | NaN–505 hp | 400–605 hp |
| Peak torque | 1,850 lb-ft | 2,050 lb-ft |
| Weight Ratings | ||
| GVWR (max) | — | 80,000 lbs |
| GCWR | — | 250,000 lbs |
| Transmission Options | ||
| Transmissions | Mack mDRIVE HD | Eaton Fuller 18-speed, PACCAR Automated 12-speed (TX-12), Eaton Endurant HD 12-speed |
| Dimensions | ||
| Wheelbase options | 0 options (undefined"–undefined") | 3 options (265"–295") |
Choose the Peterbilt 589 for OTR driver comfort — its 80" sleeper options exceed the Mack Granite's 0" maximum. The Peterbilt 589 offers more peak power (605 hp vs 505 hp), giving it an edge for heavy-haul and mountainous routes.
Both the Mack Granite and Peterbilt 589 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 589 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 589 tops out at 605 hp / 2050 lb-ft. GVWR is similar lbs for the Mack Granite and 80,000 lbs for the Peterbilt 589.
TruckRadar has 500 Mack Granite and Peterbilt 589 trucks available right now from dealers nationwide. Search by make, model, price, and location at truckradar.ai.
| Sleeper sizes |
| — |
| 44", 58", 72", 80" |
| Pricing (estimated) |
| Base MSRP range | — | $180,000–$235,000 |