Kenworth Paccar MX-13, Engine
| Engine capacity | 12,900 cm³ |
| Maximum power (range), hp | 405 - 510 |
| Maximum torque, N*m (kg*m) at rpm. | 1,965 (200) / 900 |
| Fuel used | Diesel fuel |
| Engine type | In-line, 6-cylinder |
| Maximum power, hp (kW) at rpm | 405 (298) / 1900 |
| Compression Ratio (Range) | 17.7 |
| Cylinder diameter (range), mm | 130 |
| Piston stroke (range), mm | 162 |
| Supercharger | Turbine |
| Number of valves per cylinder (range) | 4 |