The MAN B&W L27/38 Mk2 is the upgraded version of the well-established L27/38 medium-speed, four-stroke marine propulsion engine. Offered in inline (L) configuration, the Mk2 variant introduces improved power density, enhanced efficiency, and reduced emissions through design optimization and modern control systems. It delivers approximately 500 kW per cylinder, with total power output ranging from 2,000 kW (4L) to 5,000 kW (10L). The engine produces high torque values—estimated between 28,000 Nm and 70,000 Nm—supporting stable and responsive propulsion for vessels operating under variable and continuous loads.The L27/38 Mk2 is designed to run on marine diesel oil (MDO) and heavy fuel oil (HFO), with increased fuel efficiency over its predecessor. It complies with IMO Tier II emissions as standard and can be equipped with Selective Catalytic Reduction (SCR) to meet IMO Tier III regulations for operation within Emission Control Areas (ECAs). Key enhancements include reduced specific fuel oil consumption (SFOC), lower maintenance requirements, and improved electronic engine management.

ENGINE SPECIFICATIONS
POWER    MAXIMUM TORQUE   Certification   
5000 KW      70,000 Nm        IMO Tier II/III (With SCR)

NEW GENUINE / REMAN    

The MAN B&W L21/31 is a compact, medium-speed, four-stroke inline marine propulsion engine specifically designed for small and medium-sized vessels requiring high reliability, fuel flexibility, and low operational costs. Each cylinder delivers approximately 220 kW, resulting in total power output ranging from 880 kW (4L) to 2,200 kW (10L). The engine produces torque in the range of 12,000 Nm to 30,000 Nm, depending on the number of cylinders and engine speed, providing smooth and efficient propulsion even under varying load conditions. The L21/31 operates on marine diesel oil (MDO) and heavy fuel oil (HFO) and is known for its robustness and simplicity. It meets IMO Tier II emission regulations and can be equipped with a Selective Catalytic Reduction (SCR) system to comply with IMO Tier III for operation in Emission Control Areas (ECAs). Its proven design ensures long service intervals, low fuel consumption, and minimal maintenance requirements, making it ideal for continuous or auxiliary propulsion.

ENGINE SPECIFICATIONS
POWER    MAXIMUM TORQUE    Certification   
2,200 KW    30,000 Nm                  IMO Tier II/III 

NEW GENUINE / REMAN    

The MAN 175D is a compact, high-speed, four-stroke marine propulsion engine designed to meet the demanding requirements of commercial, naval, and passenger vessel applications. Developed by MAN Energy Solutions, the 175D series is available in 12-, 16-, and 20-cylinder V-type configurations, offering high power density with low fuel consumption and minimal emissions. The engine delivers up to 220 kW per cylinder, with total output ranging from 2,220 kW (12V) to 4,400 kW (20V). It provides strong continuous torque performance, typically between 20,000 Nm and 45,000 Nm, enabling excellent acceleration and load response. The MAN 175D runs on marine diesel oil (MDO) and ultra-low sulfur fuel oils, and it is fully compliant with IMO Tier II regulations. With the addition of an SCR (Selective Catalytic Reduction) system, it meets IMO Tier III emission standards for operation in Emission Control Areas (ECAs). Key features include low vibration, reduced maintenance costs, and optimized performance for variable-speed and fixed-pitch propeller systems.

ENGINE SPECIFICATIONS
POWER    MAXIMUM TORQUE   Certification   
4,400 KW    45,000 Nm           IMO Tier II/III (With SCR)

NEW GENUINE / REMAN    

The MAN S.E.M.T. Pielstick PC2.6B is a robust, medium-speed, four-stroke marine propulsion engine designed for large naval and commercial vessels that require high power output and long-term operational durability. Manufactured under the MAN S.E.M.T. Pielstick brand, the PC2.6B is offered in V-type configurations, with power outputs ranging from 7,200 kW to over 13,000 kW, depending on the number of cylinders (typically 12V to 20V configurations). It delivers extremely high torque estimated between 400,000 Nm and 700,000 Nm making it well-suited for driving large propellers in vessels operating under heavy-duty and continuous load conditions. This engine operates on marine diesel oil (MDO) and heavy fuel oil (HFO) and is known for its mechanical reliability in extended operations. It meets IMO Tier I or Tier II emission standards, depending on configuration and year of manufacture. However, due to its older design architecture, compliance with IMO Tier III would require the addition of after-treatment systems such as Selective Catalytic Reduction (SCR) units.

ENGINE SPECIFICATIONS
POWER      MAXIMUM TORQUE  Certification   
13,000 KW   700,000 Nm       IMO Tier II / III (With SCR) 

NEW GENUINE / REMAN    

The S.E.M.T. Pielstick PA6B STC is a high-speed, four-stroke marine propulsion engine equipped with Sequential Turbocharging (STC), designed to deliver rapid acceleration, enhanced fuel efficiency, and strong part-load performance. Built in V-type configurations (typically 12V, 16V, and 18V), the PA6B STC is a widely used engine in naval, commercial, and governmental marine applications. Power output ranges from approximately 4,000 kW to 8,000 kW, depending on the number of cylinders and specific configuration. Torque figures are typically in the range of 25,000 Nm to 60,000 Nm, offering strong propulsion performance and excellent dynamic response. The STC (Sequential Turbocharging) system enables optimal turbocharger performance across the engine’s load range by engaging turbochargers in stages, which enhances low-load efficiency and responsiveness. The PA6B STC operates on marine diesel oil (MDO) and can be adapted for use with heavy fuel oil (HFO) in some variants. The engine meets IMO Tier II emission standards and can be upgraded to IMO Tier III compliance with the integration of Selective Catalytic Reduction (SCR) systems.

ENGINE SPECIFICATIONS
POWER    MAXIMUM TORQUE  Certification   
8,000 KW    60,000 Nm         IMO Tier II / III (With SCR) 

NEW GENUINE / REMAN