Choose the Peterbilt 579 for OTR driver comfort — its 76" sleeper options exceed the Kenworth T800's 52" maximum. The Kenworth T800 starts at a lower base MSRP ($130k vs $135k), offering better entry-level value.
| Spec | Kenworth T800 107 available · from $28,618 | Peterbilt 579 1151 available · from $19,995 |
|---|---|---|
| Engine Options | ||
| Engine options | PACCAR MX-13, Cummins X15, Cummins ISX15 | PACCAR MX-13, PACCAR MX-11, Cummins X15 |
| Horsepower range | 400–605 hp | 370–605 hp |
| Peak torque | 2,050 lb-ft | 2,050 lb-ft |
| Weight Ratings | ||
| GVWR (max) | 92,000 lbs | 80,000 lbs |
| GCWR | 250,000 lbs | 220,000 lbs |
| Transmission Options | ||
| Transmissions | Eaton Fuller 18-speed, Allison 4500 RDS, PACCAR Automated 12-speed (TX-12) | PACCAR Automated 12-speed (TX-12), Eaton Fuller 10-speed, Allison 4700 RDS |
| Dimensions | ||
| Wheelbase options | 5 options (173"–265") | 7 options (210"–280") |
Choose the Peterbilt 579 for OTR driver comfort — its 76" sleeper options exceed the Kenworth T800's 52" maximum. The Kenworth T800 starts at a lower base MSRP ($130k vs $135k), offering better entry-level value.
Both the Kenworth T800 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 Kenworth T800 is built by Kenworth 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 Kenworth T800 tops out at 605 hp / 2050 lb-ft torque. The Peterbilt 579 tops out at 605 hp / 2050 lb-ft. GVWR is 92,000 lbs for the Kenworth T800 and 80,000 lbs for the Peterbilt 579.
TruckRadar has 1,258 Kenworth T800 and Peterbilt 579 trucks available right now from dealers nationwide. Search by make, model, price, and location at truckradar.ai.
| Sleeper sizes | 38", 52" | 40", 52", 72", 76" |
| Pricing (estimated) |
| Base MSRP range | $130,000–$185,000 | $135,000–$185,000 |