Opel 21D, Engine
| Engine capacity | 2,068 cm³ |
| Maximum power (range), hp | 60 |
| Maximum torque, N*m (kg*m) at rpm. | 118 (12) / 2500 |
| Fuel used | Diesel fuel |
| Engine type | In-line, 4-cylinder |
| Additional engine information | direct fuel injection |
| Maximum power, hp (kW) at rpm | 60 (44) / 4000 |
| Compression Ratio (Range) | 22 |
| Cylinder diameter (range), mm | 88 |
| Piston stroke (range), mm | 85 |
| Valve drive | SOHC |
| Number of valves per cylinder (range) | 2 |