Mercedes-Benz OM604 engine
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The Mercedes-Benz OM604 is a 2.0 litres and 2.2 litres inline-four cylinder double overhead camshaft diesel engine with indirect injection manufactured by Mercedes-Benz between 1993 and 1998. It replaced the single overhead camshaft OM601 engine. Wikipedia
Compression ratio: 22.0:1
Cooling system: Water cooled
Cylinder block material: Cast iron
Cylinder head material: Aluminum
Fuel system: Indirect injection
Oil system: Wet sump
Piston stroke: 86.6 mm (3.41 in); 84 mm (3.31 in)