Side-by-side breakdown
● indicates the winner on that row
| Параметр | Peterbilt 579 | Kenworth T680 |
|---|---|---|
| Engine | PACCAR MX-13 | PACCAR MX-13 |
| Horsepower | 405–510 hp | 405–510 hp |
| Peak torque | 1,850 lb-ft | 1,850 lb-ft |
| Transmission | PACCAR TX-12 AMT | PACCAR TX-12 AMT |
| Sleeper | 72" / 80" UltraLoft | 76" High-Roof |
| Real-world MPG | 7.3–7.7 | 7.3–7.7 |
| Avg new price (fleet spec) | $184,000 | ●$178,000 |
| Year-3 residual | ●64% of MSRP | 61% of MSRP |
| Dealer network (US) | ~340 points | ●~390 points |
| Owner-op buyer share | ~52% of trades | ~38% of trades |
Pros & cons
Option A
Peterbilt 579
- Strongest resale of any Class 8 sleeper
- Iconic styling — high driver retention & recruiting tool
- Broad customization options from the factory
- Lower depreciation curve at year 3–5
- $5–8k brand premium over Kenworth
- Smaller dealer footprint — fewer 24/7 shops
- Order-to-build lead times typically 2–4 weeks longer
Option B
Kenworth T680
- Lower upfront cost than 579 — same powertrain
- TruckTech+ fleet telematics platform
- Larger 24/7 service network
- Faster availability from dealer stock
- Resale typically 2–3 points behind Peterbilt
- Lower owner-operator desirability at trade-in
- Less factory customization than the 579
Estimated 5-year total cost of ownership
Acquisition + fuel + maintenance + insurance, 120k mi/yr
- Peterbilt 579
- Kenworth T680
Источник: ATRI 2025, J.D. Power, Brobas underwriting
Residual value retention
% of original MSRP retained at age 1–5
- Peterbilt 579
- Kenworth T680
Источник: J.D. Power Commercial Truck Guide
Run the numbers yourself