Dongfeng Cummins 6LTAA8.9-M315 Marine Diesel Engine

Reliable Power for Demanding Marine Applications

The 6LTAA8.9-M315 from Dongfeng Cummins is a high-performance, turbocharged, and charge air-cooled marine diesel engine, engineered for continuous-duty applications. With an output of 315 BHP (230 kW) at 2134 RPM, this 6-cylinder powerhouse propulsion engine is designed to meet the rigorous demands of marine propulsion, offering exceptional fuel efficiency, reliable torque performance, and industry-proven durability.

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Key Specifications

• Engine Model: 6LTAA8.9-M315
• Power Output: 230 kW (315 BHP) @ 2134 RPM
• Max Power: 253 kW @ 2200 RPM
• Peak Torque: 1350 N·m @ 1400 RPM
• Aspiration: Turbocharged & Charge Air Cooled
• Fuel System: BOSCH P7100/RQV\_K
• Displacement: 8.9 Liters
• Number of Cylinders: 6 Inline
• Bore x Stroke: 114 mm × 145 mm
• Compression Ratio: 16.6:1
• Dry Weight: 650 kg
• Idle Speed: 600–800 RPM
• High Idle Speed: 2430 RPM
• Cooling System Capacity: 11.1 Liters
• Lubrication System Capacity: 27.6 Liters
• Emission Compliance: TBD

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Performance Overview

• Stable Power Delivery: Smooth and efficient performance across a wide RPM range. Delivers up to 253 kW at 2200 RPM.
• High Torque at Low RPM: 1350 N·m at 1400 RPM, ideal for heavy-duty propulsion and maneuvering.
• Optimized Fuel Consumption: Low specific fuel consumption across operating speeds, ensuring long-range operations and cost-efficiency.
• Turbocharged and aftercooled: The turbocharger forces more air into the cylinders for increased power, and the aftercooler cools the compressed air for better combustion. 

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Key Features

• ✅ Robust Design: Built for long-term operation under harsh marine conditions.
• ✅ Efficient Cooling: Charge air cooling and optimized coolant flow keep engine temperatures in control.
• ✅ Heavy-Duty Fuel System: BOSCH P7100 pump ensures precise fuel delivery and dependable performance.
• ✅ Flexible Mounting Options: Designed for in-line or vee-drive installations with adjustable pitch angles.
• ✅ Marine-Grade Durability: Resistant to corrosion, vibration, and high load cycles typical in marine environments.
• ✅ Certified Performance: All engine data certified within 5% tolerance under GB/T18297 conditions.

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Applications

The 6LTAA8.9-M315 is ideal for a wide range of marine propulsion scenarios, including:

• 🚢 Fishing Vessels
• ⛴ Ferries & Passenger Boats
• 🛥 Workboats & Utility Boats
• 🚤 Crew Transfer Vessels
• ⚓ Government and Patrol Boats

Whether navigating coastal waters or operating offshore, this marine diesel engine ensures reliable power when you need it most.

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Why Choose the 6LTAA8.9-M315?

• 🔧 Backed by Dongfeng Cummins’ marine expertise
• 🌍 Globally supported service network
• 💡 Proven in diverse applications across Asia, the Middle East, and Africa
• 💪 Built to meet continuous operation demands under load

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Need a Customized Marine Power Solution?

TPGC Power offers complete marine engine packages, including:

• Engine & generator set integration
• SOLAS-compliant exhaust systems
• Flexible accessories (air cleaner, control panels, etc.)