Cummins Marine 6LTAA8.9-M300 and Engine Parts

Cummins 6LTAA8.9-M300 marine engine is a 6-cylinder in-line, 8.9-liter four-stroke engine with a 114mm bore and 145mm stroke. It is equipped with a Weifu PW2000 fuel pump and RQV-K governor, along with a turbocharger and Air-Air Intercooler. The prime power at 1800 RPM of DCEC 6LTAA8.9-M300 marine main engine is 300 HP.

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 the marine engine, gearbox, shaft, and propeller as a complete power system. Hawks Parts provides full life cycle services for all customers, from design to power system supply, installation, commissioning, after-sales service training, spare parts supply, trouble shooting, to overhaul technical support.

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

Advantages of 6LTAA8.9-M300 Marine Engine:

• Advanced design and exquisite manufacturing technology ensure reliability and durability, suitable for high-strength and heavy-duty operations under severe working conditions.
• The integrated oil and water pipeline replaces traditional hoses, eliminating the risk of leakage. Enhanced cooling and lubrication functions effectively prolong the engine’s service life.
• The high-pressure common rail fuel system (HPCR) ensures rapid throttle response at different speeds, better power and fuel economy, and lower noise.
• Adoption of an exhaust gas bypass turbocharger ensures smoother supercharging at low speeds and more stable power output at high speeds.
• The engine back-end power output device (REPTO) can enhance the control ability of remote equipment.

Cummins 6LTAA8.9-M300 – General Information

Model: 6LTAA8.9-M300

Type: 6 Cylinders in Line, 4 Stroke

Displacement: 8.9 L

Bore * Stroke: 114 * 145

Net Weight (with flywheel & alternator): 674 Kg

Overall Dimension: 1360mm*780mm*988mm

Engine Cofiguration No.: D563014MX03

Manufacture Plant: Dongfeng Cummins Plant

Cummins 6LTAA8.9-M300 – Performance Data

Rated Power/Speed: 224 kW/188HP @ 1800 rpm

Max. Power/rated Speed: 245 kW/328HP @ 1858 rpm

Max Torque/Speed: 1250 N.m @ 1400 rpm

Torque/Rated Speed: 1295 N.m @ 1800 rpm

Low Idle Speed: 630-830 rpm

High Idle Speed: 2100 rpm

Fuel Consumption (Running Speed): ≤ 64 L/hr

Cummins 6LTAA8.9-M300 – Technical Specification

Certification: CCS Certificates

Aspiration: Turbocharged/Air-air Cooled

Fuel System: Weifu PW2000 Pump/RQV-K Governor

Starting System: Electrical Start (12V/24V)

Governor Type: Mechanical Control

Compression Radio: 16.6:1

Engine Cooling Fluid Volume: 11.1 L

Lowest Starting Temp Without auxiliary system: -12℃

Cooling Method: Sea water pump, Heat exchanger, Water cooled

Cummins Engine Series