The OM661 engine is a collaboration between SsangYong Motors and Mercedes-Benz. It has 4 cylinders, a split combustion chamber and a working volume of 2.3 liters. Engines of the 661 series were equipped with such cars as SsangYong Musso (Tagaz Partner), SsangYong Korando (Tagaz Tager), as well as some Mercedes models.
This engine is similar to the OM662 engine, the only difference is that OM661 does not have an additional (fifth) cylinder and, accordingly, OM662 has a different fuel equipment. Motors SsangYong (OM661 Mercedes) have increased reliability, efficiency, and ease of maintenance.
Specifications
| Engine’s type | diesel |
| Power, hp / kW | 77-79 / 57-58 at 2100 rpm |
| Displacement, cc | 2152-2299 |
| Number of cylinders | 4 |
| Number of valves | 8 |
| Compression ratio | 21:1 |
| Cylinder bore, mm | 89 |
| Piston stroke, mm | 92.4 |
| Crankshaft bearings | 5 |
| Configuration | inline |
| Fuel type | diesel fuel |
| Combustible mixture supply | split combustion engine |
| Turbine | suction pump |
| Cylinder head | SOHC/OHC |
| Timing mechanism | chain |
| Cooling | water |
Modifications:
- OM 661.911 Engine (4-cylinder, 2299 cc), 2 valves per cylinder, 92.4 stroke, 89 bore, 58 kW (79 hp) For Mercedes-Benz Sprinter models 208 D 2.3, Sprinter 308 D 2.3, Sprinter 408 D 2.3, Vito 108 D 2.3, T1 – 208 D 2.3, T1 – 308 D 2.3, T2 / LN1 – 508 D, T1 / TN – 408 D, Korando 2.3. </ li>
- OM 661.940 engine (4 cylinders, 2299 cc), 2 valves per cylinder, 92.4 stroke, bore 89, 58 kW (79 hp)
- OM 661.960 engine (4 cylinders, 2152 cc), 2 valves per cylinder, 92 kW (125 hp)
