Scania entirely transitioned to producing unified Scania DC11 and 12 engines by 2007. Additionally, the piston stroke and volume of Scania DC 12 engines are larger than those of 11-liter engines. Additionally, the length of the connecting rods and the size of the crankshaft crank varied among the internal combustion engines.

Scania in-line engines are genre classics with potential for future advancements. Nearly all long-haul tractor, truck, and Scania special equipment models have inline diesel engines.
Specifications
| Manufacturer | Scania |
| Also called | DC 12 |
| Cylinder block alloy | cast iron |
| Fuel system | direct injection |
| Configuration | inline |
| Number of cylinders | 6 |
| Piston stroke, mm | 154 |
| Cylinder bore, mm | 127 |
| Displacement, cc | 11700 |
| Power output, hp | 340-470/1900 |
| Torque output, Nm / rpm | 1795/1500 |
| Fuel type | diesel |
| Euro standards | Euro 3 |
| Weight, kg | 1065 (dry) |
DC12 motor schematic

- Rating plate;
- The engine number is stamped on the cylinder block;
- Coolant pump;
- Automatic belt tensioner;
- Draining coolant;
- Oil filter;
- Oil filter unit;
- Engine oil dipstick;
- Draining engine oil;
- Oil heat exchanger;
- Turbocharger;
- Oil filler neck;
- Hydraulic pump;
- Fuel pump with hand pump;
- Starter;
- S6 control unit;
- Fuel filter;
- Radiator for intercooler.
To meet the strict requirements of environmental standards in nearly every market, significant progress has been made in lowering the toxicity of harmful emissions. Simultaneously, the dynamic performance and fuel efficiency of Scania industrial and marine engines are guaranteed to meet high quality standards.
Under all operating conditions, the engine’s Electronic Management System (EMS) with unit injectors (PDE) makes sure that each cylinder receives the right amount of fuel on time. A control unit (S6) and sensors for speed, charge air temperature and pressure, coolant temperature, and accelerator/throttle pedal activation oil pressure make up the EMS system. These sensors continuously transmit signals to the control unit. The proper fuel quantity and injection time for each unit injector under the particular operating conditions are determined using this input and the programmed control software.
Explanation of DC 12 markings
| DC | Diesel engine with turbocharger and air-cooled intercooler. |
| 12 | Total working volume, dm3. |
