6CTAA8.3-G155

The compact, lightweight, and cost-effective Type B engine delivers cleaner and quieter performance, with a rated power output of 130kW. Under strict adherence to maintenance guidelines, it achieves a mean time between failures (MTBF) of 1,500 hours and a mean time between overhauls (TBO) of 6,000 hours or more. Even under extreme duty cycle testing, this model maintains strong performance. Its low noise levels, reduced weight, and high power-to-weight ratio are all attributable to its world-class reliability.

Basic Engine Specifications

• Model: HWCCTAA8.3‑G155
• Speed: 1500 RPM & 1800 RPM
• Issue Date: 2024‑03‑26
• Compression Ratio: 11.5:1
• Bore: 114 mm
• Stroke: 135 mm
• Speed Regulation: ≤3%
• Aspiration: Turbocharged & Air‑to‑Air Intercooled
• Displacement: 8.3 L
• No. of Cylinders: 6

Test Conditions

Engine tested with water pump and oil pump; without air compressor, generator, fan, optional parts and drives.

Rated Power Data

Performance Data at 1500 rpm

Performance Data at 1800 rpm

General Notes

Performance data obtained under GB/T 18297 test conditions: ambient pressure 100 kPa, intake air temperature 25 °C.

Typical Engine Data

• Dry Weight: 684 kg
• Moment of Inertia (rotating parts, no flywheel): 0.37 kg·m²
• Distance from CG to front face of cylinder block: 541 mm
• Distance from CG to crankshaft centerline (above): 163 mm
• Firing Order: 1‑5‑3‑6‑2‑4

Engine Mounting

• Maximum allowable static bending moment (rear face): 1356 N·m

Exhaust System

• Maximum exhaust back pressure: 10 kPa

Charge Air Cooling System

• Max allowed temperature difference (manifold vs ambient): 25 °C
• Max pressure drop across intercooler: 13 kPa
• Max intake manifold temperature (25 °C ambient): 50 °C
• Max intake manifold temperature: 58 °C

Air Intake System

• Max allowable intake restriction (heavy‑duty air cleaner):
  • Clean element: 3.7 kPa
  • Dirty element: 6 kPa
• Minimum dirt holding capacity: 53 g/litre/sec
• Max temperature rise to turbo inlet: 17 °C
• Recommended minimum intake ID: 76 mm

Lubrication System

• Normal oil pressure:
  • Low idle: 207 kPa
  • Rated speed: 345 kPa
• Oil capacity (offset pan): max 14.2 L, min 12.3 L
• Max oil sump temperature: 121 °C
• Minimum system capacity (sump + filter): 23.8 L
• Inclination limits (offset pan): front up 4°, others 0°

Cooling System

• Coolant capacity (engine only): 12.3 L
• Max external circuit resistance:
  • 1800 rpm: 35 kPa
  • 1500 rpm: 28 kPa
• Max static coolant height above crankshaft: 1.4 m
• Thermostat range: 82–95 °C
• Minimum pressure cap: 69 kPa
• Max coolant temp: standby 104 °C, prime 100 °C

Electrical System

• Starting motor: 12V / 24V
• Battery charging (negative ground): 12V 63A; 24V 40A
• Max starting circuit resistance: 12V 0.00075 Ω; 24V 0.002 Ω
• Min battery CCA (@‑12 °C): 12V 800; 24V 400

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

Thermal & Flow Performance