Peterbilt
Model 520
Full specifications
| Cab Drive Options | Right-Hand, Left-Hand, Dual Drive, Stand-Up, Dual Seated | ↗ |
| Engine Option 1 | PACCAR MX-11 | ↗ |
| Engine Option 2 | PACCAR PX-9 | ↗ |
| Engine Option 3 | Cummins X15N (Natural Gas) | ↗ |
| Engine Option 4 | Cummins ISX12N (Natural Gas) | ↗ |
| Engine Option 5 | Cummins L9N (Natural Gas) | ↗ |
| Front Axle Rating | 12,000 - 20,000 lbs. | ↗ |
| GCWR | Up to 89,000 lbs. | ↗ |
| ISX12N Displacement | 11.9 L | ↗ |
| ISX12N Max Horsepower | Up to 350 hp | ↗ |
| ISX12N Max Torque | Up to 1,450 lb.-ft. | ↗ |
| L9N Horsepower | 320 hp | ↗ |
| L9N Torque | 1,000 lb.-ft. | ↗ |
| MX-11 Displacement | 10.8 L | ↗ |
| MX-11 Max Horsepower | Up to 430 hp | ↗ |
| MX-11 Max Torque | Up to 1,650 lb.-ft. | ↗ |
| PX-9 Displacement | 8.9 L | ↗ |
| PX-9 Max Horsepower | Up to 380 hp | ↗ |
| PX-9 Max Torque | Up to 1,250 lb.-ft. | ↗ |
| Rear Axle Rating | 21,000 - 78,000 lbs. | ↗ |
| Vehicle Class | 8 | ↗ |
| X15N Displacement | 14.5 L | ↗ |
| X15N Max Horsepower | Up to 500 hp | ↗ |
| X15N Max Torque | Up to 1,850 lb.-ft. | ↗ |
Every figure is traced to the manufacturer’s published data. ↗ opens the source.
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