Liu Gong 9057

Engine
Emissions rating EPA Tier 4 Final/EU Stage V
Make Yanmar
Model 4TNV86CT-PLY
Aspiration Turbocharged
Charged air cooling None
Cooling fan drive Mechanical, direct
Displacement 128 in3 (2.091 L)
Gross power 48 hp (35.5 kW) @ 2,400 rpm
Net power 46 hp (33.5 kW) @ 2,200 rpm
Peak torque 130 lbf·ft (176.6 N·m) @ 1,560 rpm
Cylinders 4-cylinder, in-line, water-cooled
Bore × Stroke 3.4 in x 3.5 in (86 mm × 90 mm)

HYDRAULIC SYSTEM
Main pump, type Variable-displacement piston
Main pump, maximum flow 40 gpm (149.6 L/min)
Implement pressure 3,975 psi (27.4 MPa)
Auxiliary 1, one-way pressure 2,900 psi (20 MPa)
Auxiliary 1, two-way pressure 2,900 psi (20 MPa)
Auxiliary 1, maximum flow 20 gpm (75 L/min)
Auxiliary 2, two-way pressure 2,900 psi (20 MPa)
Auxiliary 2, maximum flow 10 gpm (37 L/min)
Slew circuit pressure 2,988 psi (20.6 MPa)
Travel circuit pressure 3,771 psi (26 MPa)
Pilot pump, type Gear pump
Pilot circuit pressure 508-566 psi (3.5-3.9 MPa)
Pilot pump, maximum flow 4 gpm (15 L/min

Fuel tank 18 gal (70 L)
Engine oil 1.7 gal (6.3 L)
Final drive, each 0.3 gal (1.3 L)
Swing drive 0.4 gal (1.5 L)
Cooling system 3.7 gal (14 L)
Hydraulic reservoir, tank 14 gal (54 L)
Hydraulic reservoir, system 16 gal (61 L)
DEF tank None