China Dongfeng Cummins 6BTA5.9-M120 Marine Diesel Engine Assembly | Tonkee®

China Dongfeng Cummins 6BTA5.9-M120 Marine Diesel Engine Assembly | Tonkee®

Dongfeng Cummins 6BTA5.9-M120 Marine Diesel Engine Assembly | Tonkee®
In terms of integration, the engine assembly is designed to seamlessly interface with a variety of marine systems and controls. This compatibility facilitates smooth integration into different vessel types, from small fishing boats to larger commercial vessels. The engine can be mated to various transmission systems, enabling customization based on specific performance requirements.
 Dongfeng Cummins 6BTA5.9-M120, Marine Diesel Engine Assembly | Tonkee®

At its heart lies a 5.9-liter, inline 6-cylinder configuration, leveraging advanced technology to deliver a maximum power output of 120 horsepower (M120 designation).


The engine's robust construction ensures longevity and dependable performance in a marine environment, characterized by varying loads, harsh conditions, and long operational hours.

The 6BTA5.9-M120 boasts a high power-to-weight ratio, enabling it to generate ample propulsion for a range of vessels while maintaining fuel efficiency. This is a key factor for commercial and recreational vessels alike, as fuel consumption directly affects operating costs and overall sustainability. The engine's engineering allows for precise fuel injection, combustion, and exhaust management, resulting in reduced emissions and compliance with stringent environmental regulations.

Designed with ease of maintenance in mind, the engine assembly features accessible service points, simplifying routine checks and repairs. This accessibility is crucial in marine applications, where downtime can have substantial financial implications. Furthermore, the engine's modular design enables efficient replacement of components, minimizing the impact of maintenance on vessel operations.

The 6BTA5.9-M120 incorporates advanced cooling technology to handle the heat generated during operation.


Efficient cooling is essential to prevent overheating and maintain optimal performance, particularly in extended operation scenarios. The engine's cooling system is engineered to handle the corrosive nature of seawater, ensuring longevity even in saltwater environments.

In terms of integration, the engine assembly is designed to seamlessly interface with a variety of marine systems and controls. This compatibility facilitates smooth integration into different vessel types, from small fishing boats to larger commercial vessels. The engine can be mated to various transmission systems, enabling customization based on specific performance requirements.

Safety features are also a priority in the design of the 6BTA5.9-M120. The engine is equipped with safeguards against over-speeding, low oil pressure, and high coolant temperature, enhancing the overall reliability and protection of both the engine and the vessel's crew.
Dongfeng Cummins 6BTA5.9-M120 Marine Diesel Engine Assembly | Tonkee®
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