| Mercedes-Benz OM660 | |
|---|---|
 | |
| Overview | |
| Manufacturer | Mercedes-Benz |
| Production | 1998 – 2015 |
| Layout | |
| Configuration | Straight-three engine |
| Displacement | 0.8 L (799 cc) |
| Cylinder bore | 65.5 mm (2.58 in) |
| Piston stroke | 79 mm (3.11 in) |
| Cylinder block material | Aluminium alloy |
| Cylinder head material | Aluminium alloy |
| Valvetrain | SOHC 2 valves x cyl. |
| Compression ratio | 18.5:1 |
| Combustion | |
| Turbocharger | Single-turbo |
| Fuel system | Direct injection Common rail |
| Fuel type | Diesel |
| Cooling system | Water cooled |
| Output | |
| Power output | 30–40 kW (41–54 PS; 40–54 hp) |
| Torque output | 100–130 N⋅m (74–96 lb⋅ft) |
The OM660 is a 0.8-litre turbocharged straight-three Diesel engine produced by Mercedes-Benz for use in Smart vehicles, from 1999 to 2014.