The OM 326 engine is a non-turbocharged, 6-cylinder, 4-stroke, pre-chamber, water-cooled, OHV diesel engine.
The arrangement of the cylinders is in-line, as in all engines of the OM 300 series. The engine has 10.8 liters and develops 200 hp (147 kW). The mass of the engine, depending on the modification, is 770-780 kg. It is used on trucks, mainly Mercedes-Benz O 317. Around 1970, the engines began to be replaced by the newly developed OM 400 series, but it was not until 1978 that they finally ceased production.
Specifications
| Engine’s type | diesel |
| Also called | OM 326 h |
| Manufacturer | Mahle, Kolbenschmidt, FP-Diesel, Goetze, OE Germany, Nural, FM Federal-Mogul |
| Production years | 01.1961 |
| Power output, hp / kW | 200 / 147 at 2200 rpm |
| Displacement, cc | 10809 |
| Number of cylinders | 6 |
| Valves | 24 |
| Firing order | 1-5-3-6-2-4 |
| Cylinder bore, mm | 128 |
| Piston stroke, mm | 140 |
| Crankshaft bearings | 7 |
| Configuration | inline |
| Fuel type | diesel |
| Turbine | intake |
| Cylinder head | OHV |
| Timing mechanism | spur gear |
| Timing | rocker arm |
| Cooling | water |
