The MR 704 LS engine (NEW) is one of the most advanced 2.8-liter marine diesel engines, designed to ensure exceptional reliability, excellent performance, and low fuel consumption even under the most challenging conditions. The MR 704 LS features a robust construction, modern cooling and injection technologies, and an extremely compact form, allowing it to be installed even in small engine spaces. This model is an ideal choice for both recreational and commercial vessels that require a powerful, economical, and durable power unit.
The engine is designed as a four-stroke turbo diesel unit with an electronically controlled direct injection system. This fuel delivery principle allows for greater precision, reduced consumption, and improved engine dynamics across all speed ranges. The electronic control system ensures optimal combustion, making the MR 704 LS run quieter, smoother, and with cleaner emissions than previous generations of marine engines.
The engine’s construction is based on a 2.8-liter displacement block, which is characterized by high resistance, mechanical reliability, and excellent thermal stability. The larger displacement directly influences greater torque, especially in the low-speed range. This provides the vessel with more thrust during takeoff, maneuvering in port, or sailing against waves. The MR 704 LS is valued for its ability to maintain constant torque even when the vessel encounters additional load, windy conditions, or waves.
Intercooling is used between the turbocharger and intake air, which improves combustion efficiency, reduces engine temperature, and allows for higher performance without overload. This technology ensures not only power but also longevity, as the engine does not overheat even when operating at maximum capacity for extended periods. The MR 704 LS is a particularly reliable choice for captains who spend a lot of time at sea and want a power unit capable of continuous operation for long hours.
The cooling system consists of separate fresh and saltwater circuits, which is very important for a marine engine. The freshwater circuit protects the engine from corrosion and ensures a constant temperature, while the saltwater circuit allows for efficient cooling of heat exchangers. This dual construction not only improves operational characteristics but also extends the service life of the entire system. Removable hoses allow for quick and easy maintenance even when the vessel’s space is limited.
The oil, water, and air circuits in the MR 704 LS engine are designed to minimize the number of external flexible hoses. The fewer rubber hoses, the lower the risk of potential failures, leaks, and vibration damage. This design advantage also improves safety and operational stability, as it reduces the risk of hose rupture under intense load or prolonged heat.
One of the biggest advantages of the MR 704 LS is its compact dimensions and relatively low weight. This allows the engine to be installed in small yachts, boats, and even RIB-type vessels, where engine room space is usually limited. Despite its small size, the engine maintains excellent power potential, making it ideal for both recreational and work vessels that require a reliable, strong, and economical power unit.
The MR 704 LS is also favored for its low operating costs. Since the engine uses advanced injection and cooling technology, it consumes less fuel, requires less frequent repairs, and is easier to maintain. This is especially important for those who use the vessel frequently and want to reduce long-term costs.
The new MR 704 LS engine (NEW) meets modern emission standards, features a clean combustion process, and reduced exhaust emissions. This allows it to be safely used in both EU waters and international maritime routes. It is a power unit that not only maintains high power but also contributes to a lower environmental impact.
This engine is a solid choice for yachtsmen, boat owners, commercial vessel operators, and anyone looking for a versatile, modern, and economical marine diesel solution. The MR 704 LS combines power, reliability, long service life, and easy maintenance, making it one of the best choices in its class in 2025.
