Choose the Western Star 4900 for OTR driver comfort — its 82" sleeper options exceed the Peterbilt 389's 78" maximum. The Western Star 4900 offers more peak power (600 hp vs 0 hp), giving it an edge for heavy-haul and mountainous routes.
| Spec | Peterbilt 389 271 available · from $46,950 | Western Star 4900 41 available · from $19,500 |
|---|---|---|
| Engine Options | ||
| Engine options | — | Detroit DD16, Cummins ISX15, Detroit DD13, Detroit DD15, Detroit Series 60 Tier III |
| Horsepower range | — | 350–600 hp |
| Peak torque | — | 2,050 lb-ft |
| Weight Ratings | ||
| GVWR (max) | — | — |
| GCWR | — | — |
| Transmission Options | ||
| Transmissions | — | — |
| Dimensions | ||
| Wheelbase options | 0 options (undefined"–undefined") | 1 options (448"–448") |
| Sleeper sizes | 72", 78" | |
Choose the Western Star 4900 for OTR driver comfort — its 82" sleeper options exceed the Peterbilt 389's 78" maximum. The Western Star 4900 offers more peak power (600 hp vs 0 hp), giving it an edge for heavy-haul and mountainous routes.
Both the Peterbilt 389 and Western Star 4900 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 Western Star 4900 is built by Western Star. 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 Western Star 4900 tops out at 600 hp / 2050 lb-ft. GVWR is similar lbs for the Peterbilt 389 and similar lbs for the Western Star 4900.
TruckRadar has 312 Peterbilt 389 and Western Star 4900 trucks available right now from dealers nationwide. Search by make, model, price, and location at truckradar.ai.
| 34", 40", 54", 68", 82" |
| Pricing (estimated) |
| Base MSRP range | $155,000–$215,000 | — |