The OM 326 is an OHV diesel engine with six cylinders, four strokes, pre-chamber, water cooling, and no turbocharging.
Like all OM 300 series engines, the cylinders are arranged in a line. The 10.8-liter engine produces 200 horsepower (147 kW). Depending on the modification, the engine weighs between 770 and 780 kg. It is primarily utilized on Mercedes-Benz O 317 trucks.
The newly created OM 400 series started to replace the engines around 1970, but production didn’t end until 1978.
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 |