At the heart of the NTA855-M is a six-cylinder, in-line configuration that delivers exceptional power output.
The engine has a displacement of 14 liters, with a bore of 140mm and a stroke of 152mm. This design, combined with advanced fuel injection technology, enables the engine to generate high torque at low speeds, making it suitable for heavy-duty applications.
The NTA855-M diesel engine is equipped with a turbocharger, which provides improved combustion efficiency and helps maximize power output. The turbocharger uses exhaust gases to drive a turbine, which compresses the intake air, resulting in increased air density and better overall engine performance. The engine also features an air-to-air aftercooling system, which further enhances the combustion process by reducing the temperature of the compressed air.
In terms of power ratings, the NTA855-M offers a wide range of options to cater to different requirements. The engine can deliver between 270 and 440 horsepower (201-328 kilowatts), depending on the specific model and configuration. This flexibility makes it suitable for a variety of applications, from small industrial equipment to large marine vessels.
The NTA855-M engine is known for its durability and long service life. It is built with heavy-duty components and a robust design to withstand the rigors of demanding operating conditions. The engine block is made of high-strength cast iron, which provides excellent resistance to wear and ensures structural integrity. Additionally, the engine features a replaceable wet cylinder liner design, allowing for easy maintenance and reduced downtime.
Cummins has integrated advanced technologies into the NTA855-M to ensure optimal fuel efficiency and emissions performance.
The engine incorporates a high-pressure fuel injection system, which precisely meters the fuel delivery to each cylinder, resulting in improved combustion efficiency and reduced fuel consumption. Furthermore, the NTA855-M complies with various emissions regulations, such as Tier 2 and Tier 3 standards, depending on the specific model and application.
Maintenance and servicing of the NTA855-M are straightforward, thanks to its user-friendly design. The engine is equipped with easily accessible components, and routine maintenance tasks can be performed quickly. Cummins also provides a global network of service centers and support, ensuring that customers can receive timely assistance and genuine Cummins parts whenever needed.
