D2566MLE marine engine by MAN D — specifications, applications, and OEM parts
The D2566MLE is a proven inline six-cylinder diesel from the MAN D D2566 series, engineered for dependable propulsion and auxiliary power in demanding maritime and stationary environments. While its lineage reflects MAN D’s long-standing design philosophy, the spotlight here is firmly on the D2566MLE itself: a robust, efficient, and service-friendly power unit known for stable performance, clean running, and long operating life under continuous load.
Buyers and technical decision-makers value the D2566MLE for its balance of torque, fuel economy, and mechanical simplicity. It is a practical choice where uptime, predictable maintenance, and global parts availability are essential—whether driving a propeller directly through a marine gearbox or supplying steady electrical output as a genset prime mover.
D2566MLE technical characteristics and performance
At its core, the D2566MLE is a 4-stroke, water-cooled, inline 6-cylinder diesel engine designed for marine duty cycles. Typical configurations feature turbocharging and charge-air cooling to deliver strong low-end torque and sustained continuous ratings. As a reference for purchasers evaluating capacity, the D2566MLE commonly operates in the 1,500–1,800 rpm band and covers continuous power ranges broadly around 220–330 kW, depending on specific marine rating and setup. Displacement is in the 11–12-liter class, providing the cylinder volume and breathing needed for heavy-duty service without excessive fuel burn.
Key engineering elements include a rigid block and crankcase for low vibration, replaceable wet cylinder liners for serviceability, and a mechanically governed high-pressure fuel system calibrated for consistent injection across the load range. The lubrication circuit uses a gear-driven oil pump with full-flow filtration, while the cooling system supports either heat exchanger or keel-cooled arrangements. Together, these features make the D2566MLE diesel engine well-suited to steady-state applications that require predictable thermal management and constant rpm stability.
In real-world use, the D2566MLE MAN D marine engine is appreciated for straightforward service procedures, excellent parts interchangeability within the D2566 family, and economical fuel consumption typical of this displacement and speed class. Operators often select this engine for its torque characteristics, which support reliable acceleration under load, smooth cruising, and efficient generator performance under varying electrical demand.
- · Inline 6-cylinder, 4-stroke diesel configuration
- · Turbocharged, with charge-air cooling on most marine builds
- · Continuous operation typically at 1,500–1,800 rpm
- · Power range commonly around 220–330 kW (setup dependent)
- · Displacement in the 11–12 L class for durable torque
- · Mechanical fuel system tuned for stable load response
- · Flexible cooling options: heat exchanger or keel cooling
- · Serviceable design with replaceable liners and accessible components
D2566MLE applications in marine and stationary operations
The D2566MLE is particularly valued where reliability and lifecycle cost control matter. In shipping, it is frequently used for main propulsion on inland cargo vessels, coastal workboats, small passenger ferries, and fishing vessels. The engine’s steady torque and moderate speed range also make it a strong choice for auxiliary power on board—driving alternators for hotel loads, deck equipment, or critical systems.
Beyond propulsion, the D2566MLE diesel engine is widely selected for stationary roles: harbor and offshore support gensets, emergency and fire pump drives, hydraulic power packs, and industrial duty where continuous or prime power is required. In each case, the D2566MLE’s predictable operating envelope and rugged build allow operators to balance performance with manageable maintenance planning.
These use cases underscore why the D2566MLE is common across diverse fleets. The combination of accessible service points, durable bottom-end design, and globally available D2566MLE OEM parts helps operators maintain high utilization rates. For buyers evaluating total cost of ownership, the engine’s efficiency and proven longevity in marine duty cycles are compelling factors.
OEM spare parts suitable for D2566MLE — performance, reliability, service life
To preserve the performance characteristics that define the D2566MLE, it is vital to use OEM spare parts suitable for D2566MLE. Precision-matched components maintain correct clearances, material properties, and surface finishes across critical assemblies such as the fuel system, turbocharger, cylinder liners, pistons and rings, bearings, valves, pumps, and cooling elements. This accuracy supports proper combustion, stable oil pressure, and reliable temperature control—directly influencing fuel efficiency and component longevity.
OEM spare parts suitable for D2566MLE also help sustain vibration behavior and balance, which protects the crankshaft, camshaft drive, and accessory systems under continuous marine loads. Consistency in nozzle flow rates, injector spray patterns, and governor response ensures the D2566MLE MAN D marine engine retains its designed load acceptance and smooth running at target rpm.
MOPA is a reliable partner for OEM spare parts suitable for D2566MLE, offering knowledgeable support for identifying the right components, coordinating delivery schedules, and aligning parts supply with your maintenance windows. With the correct D2566MLE OEM parts, operators can plan overhaul intervals with confidence, reduce unplanned stoppages, and protect the service life of major components—key outcomes for shipowners and plant operators alike.
D2566MLE OEM parts — practical advantages
Choosing OEM spare parts suitable for D2566MLE provides clear operational benefits: consistent fit-up during overhauls, predictable performance after installation, and stable emissions and fuel burn characteristics that help control operating costs over time. For procurement teams, standardized parts specifications for the D2566 series simplify inventory, shorten downtime, and align maintenance practices across similar vessels or sites.
Conclusion: why the D2566MLE stands out
The D2566MLE combines proven MAN D engineering with the dependable performance that marine and stationary operators require. Its torque-rich characteristics, serviceable design, and adaptable configurations make it a strong choice for propulsion and auxiliary power.
To keep this engine performing at its best, rely on OEM spare parts suitable for D2566MLE. MOPA supports purchasers and fleet managers with a dependable supply of OEM spare parts suitable for D2566MLE, helping you protect performance, reliability, and service life across your operation.
