6LTAA9.5-G220

The product delivers proven stability and enhanced durability, along with superior cold-start performance and reduced operational noise. Its integrated design ensures identical dimensions and interfaces for both mechanical and electronic control models, while supporting seamless 50Hz/60Hz switching. With a rated power output of up to180 kW, it helps minimize customer inventory costs while offering excellent overall economy.

Core Specifications

Compression Ratio: 11.5:1

Bore: 116.5 mm

Stroke: 148 mm

Aspiration: Turbocharged & Air-to-Air Intercooled

Displacement: 9.5 L

Number of Cylinders: 6

Speed Regulation Rate: ≤3%

Maximum Continuous Operating Altitude: 2200 m

The engine is tested with the water pump and oil pump installed, but without the air compressor, generator, fan, optional components, and driven accessories. The test conditions are: intake resistance of 3.7 kPa and exhaust resistance of 10 kPa.

Engine Power Output

Engine Speed (RPM)	Engine Power (kW)	Engine Power (HP)	Continuous Power (kW)	Continuous Power (HP)
1500	220	295	180	241
1800	238	319	192	257

1500 RPM Performance Data

Output Power (%)	kW	HP	Gas Consumption (m³/kW·h)	Gas Consumption (m³/h)
Standby Power 100%	220	295	0.33	73
Basic Power 100%	220	295	0.33	73
Basic Power 75%	165	221	0.32	55
Basic Power 50%	110	147	0.34	37
Basic Power 25%	55	74	0.33	19

1800 RPM Performance Data

Output Power (%)	kW	HP	Gas Consumption (m³/kW·h)	Gas Consumption (m³/h)
Standby Power 100%	238	319	0.33	79
Basic Power 100%	238	319	0.32	79
Basic Power 75%	179	240	0.33	60
Basic Power 50%	119	159	0.31	40
Basic Power 25%	60	80	0.34	20

The performance data are obtained in accordance with the test conditions specified in GB/T 18297, at an atmospheric pressure of 100 kPa and an intake air temperature of 25°C. The maximum altitude for continuous operation is 2,200 m.

Typical Engine Data

Dry Weight: 684 kg

Rotating Parts Moment of Inertia (without flywheel): 0.37 kg·m²

CG Distance from Front Face of Cylinder Block: 541 mm

CG Distance from Crankshaft Centerline (above crankshaft): 163 mm

Firing Order: 1-5-3-6-2-4

Mounting & System Limits

Max Static Bending Moment at Rear Face of Cylinder Block: 1356 N·m

Max Exhaust Back Pressure: 10 kPa

Max Temp Rise After Intercooler: 25 °C

Max Pressure Drop Across Intercooler: 13 kPa

Max Intake Manifold Temp (25°C ambient): 50 °C

Max Intake Manifold Temp: 58 °C

Max Intake Resistance (Heavy Duty Air Filter): 3.7 kPa clean / 6 kPa dirty

Min Dirt Holding Capacity: 53 g/litre/sec

Max Temp Rise to Turbocharger Inlet: 17 °C

Min Intake Pipe Inner Diameter: 76 mm

Lubrication System

Normal Oil Pressure at Low Idle: 207 kPa

Normal Oil Pressure at Rated Speed: 345 kPa

Oil Capacity (with offset oil pan): Max – Min: 14.2 L – 12.3 L

Max Oil Sump Temperature: 121 °C

Min System Capacity (sump + filter): 23.8 L

Max Tilt Angle (offset oil pan): Front Up: 4°

Max Tilt Angle (offset oil pan): Side to Side: 0°

Cooling System

Coolant Capacity (engine only): 12.3 L

Max External Cooling Resistance at 1800 RPM: 35 kPa

Max External Cooling Resistance at 1500 RPM: 28 kPa

Max Static Coolant Height Above Crankshaft: 1.4 m

Thermostat Opening Temp Range: 82 – 95 °C

Min Pressure Cap Pressure: 69 kPa

Max Coolant Temp (Standby/Rated): 104 °C / 100 °C

Electrical System

Battery Charging System (Negative Ground): 12V / 24V

Max Starting Circuit Resistance: 0.00075 Ω (12V) / 0.002 Ω (24V)

Min Battery Capacity for Starter: 400 CCA (12V) / 800 CCA (24V) at -12°C

Emission Data (GB 20891-2007)

At 1500 RPM:

  NOx: 9.2 g/kW·h

  HC: 1.3 g/kW·h

  CO: 5.0 g/kW·h

  Particulate: 0.70 g/kW·h

At 1800 RPM:

  NOx: 9.2 g/kW·h

  HC: 1.3 g/kW·h

  CO: 5.0 g/kW·h

  Particulate: 0.54 g/kW·h

Operating Parameters

Low Idle Speed: 750 – 850 RPM

Piston Speed at 1800 RPM: 8.1 m/s

Piston Speed at 1500 RPM: 6.8 m/s

Friction Loss Power: 22 kW (1800 RPM) / 17 kW (1500 RPM)

Air-Fuel Ratio: 12:1