Choose the Mack Pioneer for OTR driver comfort — its 76" sleeper options exceed the Peterbilt 520's 0" maximum. The Mack Pioneer offers more peak power (515 hp vs 500 hp), giving it an edge for heavy-haul and mountainous routes.
| Spec | Mack Pioneer 23 available · from $142,000 | Peterbilt 520 85 available · from $122,500 |
|---|---|---|
| Engine Options | ||
| Engine options | Mack MP13, Mack MP13HE | PACCAR MX-11, Cummins L9, Cummins X12 |
| Horsepower range | 415–515 hp | 260–500 hp |
| Peak torque | 1,950 lb-ft | 1,700 lb-ft |
| Weight Ratings | ||
| GVWR (max) | — | 66,000 lbs |
| GCWR | — | 66,000 lbs |
| Transmission Options | ||
| Transmissions | Mack mDRIVE, mDRIVE, mDRIVE HD, mDRIVE 12-speed, mDRIVE 13-speed, mDRIVE 14-speed, mDRIVE HD 12-speed, mDRIVE HD 13-speed | Allison 4500 RDS, PACCAR Automated 12-speed (TX-12) |
| Dimensions | ||
| Wheelbase options | 4 options (125"–189") | 4 options (152"–212") |
Choose the Mack Pioneer for OTR driver comfort — its 76" sleeper options exceed the Peterbilt 520's 0" maximum. The Mack Pioneer offers more peak power (515 hp vs 500 hp), giving it an edge for heavy-haul and mountainous routes.
Both the Mack Pioneer and Peterbilt 520 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 Pioneer is built by Mack and the Peterbilt 520 is built by Peterbilt. Both are Class 8 conventional tractors but differ in powertrain options, cab dimensions, dealer networks, and MSRP.
The Mack Pioneer tops out at 515 hp / 1950 lb-ft torque. The Peterbilt 520 tops out at 500 hp / 1700 lb-ft. GVWR is similar lbs for the Mack Pioneer and 66,000 lbs for the Peterbilt 520.
TruckRadar has 108 Mack Pioneer and Peterbilt 520 trucks available right now from dealers nationwide. Search by make, model, price, and location at truckradar.ai.
| Sleeper sizes | 44", 64", 76" | No sleeper |
| Pricing (estimated) |
| Base MSRP range | — | $200,000–$280,000 |