A 12-liter engine powers the Volvo D12A340. Six cylinders, each with four valves, a cylinder diameter of 131 mm, and a piston stroke of 150 mm. produced for the Volvo FH 12 from 1993 to 1995.
Regular maintenance is made much easier by the six cylinders in one row. Both the block and the cylinder head are made of premium cast iron, which has a wide margin of safety.
Specifications
| Engine’s type | diesel |
| Production years | 08/1993 |
| Power output, hp / kW | 340 / 250 at 1700 rpm |
| Displacement, cc | 12100 |
| Number of cylinders | 6 |
| Valves | 24 |
| Torque output, Nm / rpm | 1550 at 1100-1300 rpm |
| Compression ratio (compression) | 17,5:1 |
| Cylinder bore, mm | 131 |
| Piston stroke, mm | 150 |
| Configuration | inline |
| Fuel type | diesel |
| Fuel system | direct injection |
| Turbine | turbo / charge air cooler |
| Cylinder head | SOHC/OHC |
| Timing mechanism | spur gear |
| Timing | rocker arm |
| Cooling | water |
Decoding of marking
| D | Type of fuel: diesel |
| 12 | Displacement |
| A | Modification ID |
| 340 | Quantity hp |