Here are the specifications for the Mitsubishi S12A2 engine:
Engine model: Mitsubishi S12A2
Number of cylinders: 12
Bore and stroke: 146 mm x 165 mm (5.75 in x 6.50 in)
Displacement: 29.72 liters (1,813 cubic inches)
Compression ratio: 15.4:1
Horsepower: Up to 1,000 hp (746 kW) at 1,800 rpm
Peak torque: Up to 3,647 lb-ft (4,950 Nm) at 1,400 rpm
Aspiration: Turbocharged and aftercooled
Emissions compliance: EPA Tier 2 and IMO Tier II certified
As for the Hitachi EX1900 excavator, here are some general specifications:
Operating weight: 190,400 kg (419,250 lbs)
Engine model: Cummins QSKTA60-CE diesel engine
Engine power: 1,492 hp (1,114 kW)
Maximum digging depth: 8.4 meters (27 feet 7 inches)
Bucket capacity: 15 cubic meters (19.6 cubic yards)