The OM470 engine is a refrigerant cooled 4-stroke direct injection diesel engine. The engine is equipped with a common rail diesel injection system, cooled and regulated exhaust gas recirculation, and turbocharging with boost pressure control. Single-stage charging is carried out via an exhaust-gas turbocharger. The valve drive has 2 gear-driven overhead camshafts.
The engine has a one-piece cylinder head. The cylinder head contains 2 intake valves and 2 exhaust valves per cylinder. The valves are symmetrical. The symmetrical valve arrangement is optimal for fuel combustion.
Specifications
| Manufacturer | Daimler Chrysler |
| Also called | OM 470 |
| Production years | 2003 |
| Cylinder block alloy | cast iron |
| Fuel system | direct injection |
| Configuration | inline |
| Number of cylinders | 6 |
| Piston stroke, mm | 145 |
| Cylinder bore, mm | 125 |
| Compression ratio | 18.5 |
| Displacement, cc | 10700 |
| Power output, hp | 326/1700 456/1700 |
| Torque output, Nm / rpm | 1700-2200/1300 |
| Fuel type | diesel |
| Euro standards | Euro 6 |
| Weight, kg | 956 (dry) |
| Dimensions, mm — length — width — height |
1485 1120 1195 |
| Firing order | 1-5-3-6-2-4 |
| Max. engine operating temperature, degrees | 110 |
| Engine lifespan, thousand km — official information |
1 000 |
Fuel equipment – Common Rail, but with a maximum spray pressure increased to 2700 bar. This is what Daimler calls the X-Pulse. The engines are only in the Euro-6 version, therefore, SCR urea neutralization, EGR recirculation and a regenerable particulate filter are combined here.
The engine has a common rail diesel injection system with increased pressure – the so-called Amplified Pressure Common Rail System (APCRS). This system minimizes the amount of fuel required for combustion. The advantage of this system is the presence of a relatively low pressure both in the rail itself and in the high pressure lines.
Explanation of OM470LA marking
| OM | Heavy Fuel Oil (Diesel) ICE |
| 470 | Engine type: 6-cylinder in-line. |
