ENGINE
Mode
ISUZU AQ-4HK1X
Type
Water-cooled, 4-cycle diesel, 4-cylinder in line, High pressure common rail system
(electric control), turbocharger with air cooled intercooler, SCR system
Number of cylinders / Displacement (l)
4 / 5.52
Emissions level
Tier 4 final / EU stage IV
Bore & stroke (mm)
115 x 125
Rated flywheel horse power
SAE J1349, ISO 9249
132.1 kW / 177 hp at 2000 min-1
ISO 14396
140 kW / 188 hp at 2000 min-1
Maximum torque
SAE J 1349, ISO 9249
621 N-m at 1800 min-1
ISO 14396
642 N-m at 1800 min-1
HYDRAULIC SYSTEM
Main pumps
2 variable displacement axial piston pumps with regulating system
Max. oil flow
2 x 234 l/min at 2000 min-1
Working circuit pressure
Boom/Arm/Bucket (MPa)
34.3 - 37.3 with auto power boost
Swing circuit (MPa)
27
Travel circuit (MPa)
34.3
Pilot pump
1 gear pump
Max. oil flow (l/min)
20
Working circuit pressure (MPa)
3.9
Boom Cylinders
Bore (mm)
140
Stroke (mm)
1126
Arm Cylinder (Dual cylinder)
Bore (mm)
125
Stroke (mm)
1280
Bucket Cylinder (only CX290D Material Handling)
Bore (mm)
120
Stroke (mm)
1010