6LTAA9.5 Marine Engine
6LTAA9.5 is a 9.5L in-line 6-cylinder turbocharged and air-to-air aftercooled diesel engine engineered specifically for heavy-duty marine applications, serving as the core power for large fishing vessels, cargo ships, tugboats, and offshore working vessels. It stands out for its robust low-speed torque, exceptional service life, and superior adaptability to marine environments, making it a trusted and proven power solution for shipowners.
Key Specifications
- Configuration: 6-cylinder in-line, four-stroke
- Displacement: 9.5 liters
- Bore × Stroke: 114 mm × 155 mm
- Aspiration: Turbocharged + water-to-air aftercooled
- Fuel System: Mechanical inline fuel injection pump / electronic unit injector (depending on version)
- Exhaust Type: Wet Exhaust
- Rated Power: 325-480 hp (240-353 kW)
- Rated Speed: up to 2300 rpm
- Max Torque: 1400–1700 N·m (at 1400–1500 rpm)
- Cooling System: Liquid-cooled
- Applications: Main propulsion, marine generator sets, auxiliary power for tugboats
Key Technologies & Advantages
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Intake & Power Performance
- Equipped with an water-to-air aftercooled intake system that significantly lowers intake air temperature and improves charging efficiency. It delivers strong low-speed torque, ensuring immediate power response during towing and heavy-load navigation, and can handle sudden load changes in complex sea conditions.
- High power density design delivers stronger output within limited engine room space, meeting the propulsion needs of large-tonnage vessels.
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Structural Reliability & Durability
- A high-strength cast iron block paired with a forged steel crankshaft offers excellent impact and fatigue resistance, enabling continuous heavy-duty operation for extended periods. The overhaul interval reaches up to 20,000 hours, greatly reducing total lifecycle maintenance costs.
- Reinforced piston and cylinder liner design, combined with an optimized lubrication system, maintains stable operation even in high-temperature, high-salt marine environments, minimizing downtime due to failures.
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Marine Environment Adaptability
- The entire engine features a salt-spray resistant and waterproof sealing design, with anti-corrosion treatment on key components, enabling it to resist erosion from seawater and high humidity, suitable for offshore, coastal, and inland waterway operations.
- Customizable cooling system and intake/exhaust layouts are available to flexibly adapt to the engine room space and heat dissipation requirements of different vessel types.
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Maintenance & Service Support
- Modular component design ensures high commonality of core parts such as cylinder heads, fuel systems, and filters, making spare parts easily accessible. Maintenance does not require full engine teardown, significantly reducing downtime.
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Multi-scenario Adaptability
- Supports dual applications as main propulsion power and marine generator sets, with options for single-engine propulsion or twin-engine parallel operation, adapting to the needs of different vessel types such as tugboats, fishing vessels, and cargo ships.
- Customizable power tuning and speed configurations are available to balance power and fuel efficiency, ideal for long-distance navigation and heavy-duty operations.
Quality Assurance & Compliance
Warehouse Storage
FAQ
A: Our core business covers diesel engine development, production, customized modification, maintenance and testing; explosion-proof engine R&D and manufacturing; Cummins spare parts supply, as well as engine overhaul and testing services.
A: Export-standard wooden box packaging
A:The specific delivery time depends on the items and the quantity of your order. We will confirm it with your detailed order.
A. Please provide us with your engine model, required rated power and speed, and application scenario. We will then recommend the most suitable model based on those information.
A: We offer professional engine customization services and can fully tailor the products to your specific requirements, with a variety of options available for pricing, specifications and configurations. The minimum order quantity (MOQ) for customized engines is 1 unit.
A:Yes, every engine is subjected to rigorous and comprehensive performance tests prior to shipment. We also provide clients with detailed test videos and electronic data.
A: EXW, FOB, CFR, CIF，DDU，DDP.
A: T/T, X Transfer, L/C, MoneyGram, PayPal, Cash etc
A:Yes, the warranty period is 6 months, covering main engine components. Consumable parts and failures caused by improper operation are excluded.
