Choose the Mack Pioneer for OTR driver comfort — its 76" sleeper options exceed the Western Star 57X's 72" maximum. The Western Star 57X offers more peak power (600 hp vs 515 hp), giving it an edge for heavy-haul and mountainous routes.
| Spec | Mack Pioneer 23 available · from $142,000 | Western Star 57X 255 available · from $19,500 |
|---|---|---|
| Engine Options | ||
| Engine options | Mack MP13, Mack MP13HE | Detroit DD16, Detroit DD13 Gen 5, Detroit DD15 Gen 5 |
| Horsepower range | 415–515 hp | 370–600 hp |
| Peak torque | 1,950 lb-ft | 2,050 lb-ft |
| Weight Ratings | ||
| GVWR (max) | — | — |
| GCWR | — | — |
| 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 | Detroit DT12 Direct and Overdrive AMT |
| Dimensions | ||
| Wheelbase options | 4 options (125"–189") | 0 options (undefined"–undefined") |
Choose the Mack Pioneer for OTR driver comfort — its 76" sleeper options exceed the Western Star 57X's 72" maximum. The Western Star 57X offers more peak power (600 hp vs 515 hp), giving it an edge for heavy-haul and mountainous routes.
Both the Mack Pioneer and Western Star 57X 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 Western Star 57X is built by Western Star. 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 Western Star 57X tops out at 600 hp / 2050 lb-ft. GVWR is similar lbs for the Mack Pioneer and similar lbs for the Western Star 57X.
TruckRadar has 278 Mack Pioneer and Western Star 57X trucks available right now from dealers nationwide. Search by make, model, price, and location at truckradar.ai.
| Sleeper sizes | 44", 64", 76" | 60", 72" |
| Pricing (estimated) |
| Base MSRP range | — | — |