GAZ УМЗ-421647, Engine
| Engine capacity | 2,890 cm³ |
| Maximum power (range), hp | 100 - 107 |
| Maximum torque, N*m (kg*m) at rpm. | 221 (23) / 2350 |
| Fuel used | Natural gas |
| Fuel consumption, l/100 km | 10.7 - 11.8 |
| Engine type | In-line, 4-cylinder |
| Additional engine information | distributed fuel injection |
| Maximum power, hp (kW) at rpm | 100 (74) / 4000 |
| Compression Ratio (Range) | 9.2 |
| Cylinder diameter (range), mm | 100 |
| Piston stroke (range), mm | 92 |