Cummins 6BT5.9-M120

  • Engine Model: 6BT5.9-M120
  • Rated Power:98 kW/120HP
  • Rated Speed: 2200 rpm
  • Engine Type:6 Cylinders in Line
  • Bore*Stroke(mm):102 * 120
  • Displacement: 5.9 L
  • Compression Ratio: 13.9:1
  • Peak Torque: 430 N.m @ 1600 rpm
  • Fuel Consumption (Running Speed): ≤263 g/
  • Aspiration Type: Turbocharged & Aftercooled
  • Cooling Method: Water Cooled
  • Start Type: Electrical Start (12V/24V)
  • Fuel System: Wuxi Weifu AD Pump/RSV Governor
  • Governor Method: Mechanical Governor
  • N.W: 432 Kg

Cummins 6BT5.9-M120 Marine Engine and Parts

Cummins 6BT5.9-M120 marine main engine is a 6-cylinder in-line, 5.9-liter four-stroke engine with a 102mm bore and 120mm stroke. It is equipped with a Weifu AD fuel pump and RSV governor and comes with a turbocharger. The prime power at 2200RPM of DCEC 6BT5.9-M120 marine main engine is 120HP.

Based on standard DCEC marine main engines, Hawks Parts provides both heat exchanger cooling and keel cooling marine main engines. we also offer a complete propulsion system, including a marine engine, gearbox, shaft, and propeller, as a complete power system. SeaMac provides full life cycle services for all its customers, from design to power system supply, from installation to commissioning, and from after-sales service training to spare parts supply, troubleshooting, and overhaul technical support.

All DCEC marine main engines come with a dry-type exhaust system, which includes a dry-type exhaust manifold and dry-type turbocharger. Hawks Parts provides upgrading services for water-cooled exhaust systems, modifying dry-type exhaust systems into water-cooled exhaust systems, which are often requested by passenger boat projects.

Advantages of 6BT5.9-M120 Marine Engine:

  • Leading design and excellent manufacturing technology enhance engine reliability and durability, suitable for high-strength, heavy-duty work under severe conditions.
  • The integrated design of the cylinder block and cylinder head prevents engine water and oil leakage. With about 40% fewer parts compared to other similar engines, the failure rate is significantly reduced.
  • The cylinder bore adopts a platform mesh honing design, effectively preventing oil leakage. Advanced technologies such as new piston ring components and gasket crimping and molding reduce oil loss.

6BT5.9-M120 – General Information

Model: Cummins 6BT5.9-M120
Type: 6 Cylinders in Line
Displacement: 5.9 L
Bore * Stroke: 102 * 120
Net Weight (with flywheel & alternator): 432 Kg
Overall Dimension: 1100mm*750mm*988mm
Manufacture Plant: Dongfeng Cummins Plant
Cummins 6BT5.9-M120

6BT5.9-M120 – Performance Data

Rated Power/Speed: 98 kW/120HP
Rated Speed: 2200 rpm
Max Torque/Speed: 430 N.m @ 1600 rpm
Torque/Rated Speed: 391 N.m @ 2200 rpm
Low Idle Speed: 750±100 rpm
Fuel Consumption (Running Speed): ≤263 g/
Cummins 6BT5.9-M120

6BT5.9-M120 – Technical Specification

Aspiration: Turbocharged
Fuel System: Wuxi Weifu AD Pump/RSV Governor
Starting System: Electrical Start (12V/24V)
Governor Type: Mechanical Control
Lowest Starting Temp Without auxiliary system: -12℃
Engine Cooling Fluid Volume: 9.9 L
Cooling Method: Sea water pump, Heat exchanger, Water cooled
Cummins 6BT5.9-M120

Cummins Engine Series


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