VM Motori MR504LH3 LX3 170 / LH3 150 Engine (NEW): Powerful and Modern 2025 Marine Solution
The VM Motori MR504LH3 LX3 170 HP and MR504LH3 150 HP are next-generation 4-cylinder, 2.0-liter marine diesel engines designed to deliver exceptional power, efficiency, and reliability even under the most demanding conditions. These engines belong to the advanced MR504 series, renowned for durability, low vibrations, clean combustion, and versatile application in various types of vessels. The LX3 170 HP version is the most powerful model in this series, while the LH3 150 HP is a more economical yet highly capable alternative.
The new MR504LH3 models are designed to remain lightweight and compact while offering exceptional torque, quick response, and maximum comfort during sailing. The engines meet modern emission standards, feature reduced exhaust emissions, and thanks to the upgraded injection process, burn fuel more efficiently than many of their class competitors. This provides longer sailing range, better dynamics, and lower operating costs.
The MR504LH3 LX3 170 / LH3 150 Engine (NEW) is equipped with a 1600 bar Common Rail fuel injection system, ensuring highly precise fuel delivery to each cylinder. This solution not only enhances power development but also reduces fuel consumption and vibrations. A smoother operating mode means lower noise levels, which is especially important for long-distance sailing or using the engine as the main power unit in sailing yachts.
The engine construction also uses a single camshaft with a toothed belt distribution system. This is a simple to maintain, reliable, and quiet mechanism that helps maintain low vibration levels across the entire RPM range. Due to easy maintenance, these engines are highly favored by boat owners seeking straightforward and efficient operation without complex maintenance procedures.
High engine power is achieved using a fixed geometry turbocharger (FGT). This turbocharger ensures stable pressure and instantaneous power without delay. This technology provides the MR504LH3 series with excellent dynamics, essential for fast boats, active sports vessels, and yachts where quick acceleration and precise engine response are important.
The cooling system also stands out with its design. The engine has two independent circuits—one for fresh water and another for salty sea water. This provides high corrosion resistance and ensures stable temperature maintenance under any conditions. Detachable hoses allow for quick maintenance without complex disassembly work, which is highly valuable in small yacht engine rooms.
The new VM Motori MR504LH3 LX3 170 / LH3 150 models are widely used in boats ranging from 20 to 40 feet. The 170 HP version is ideal for sports boats, high-speed recreational yachts, and more powerful RIB-type boats. The 150 HP version is more commonly installed in sailing yachts, economical boats, and light commercial vessels. This series can be installed as a primary or secondary engine, depending on the type of vessel and its power requirements.
The engines come with a wide range of standard and optional equipment. Standard installations include oil and fuel filters, a 12V starter, a 12V–110A alternator, a bronze sea water pump, a fresh water circulation system, a stainless steel gas/water mixer, flexible mounting elements, an expansion tank, an electronic control panel with alarms, and a white protective coating. Optional equipment includes a hydraulic reverse gear or a flying bridge control panel.
The technical specifications are impressive: 2.0 L displacement, 4 cylinders, Common Rail injection, 150–170 HP power, 310–340 Nm torque, approximately 250 kg weight, and compact dimensions. The engines comply with EPA Tier 3, RCD2, and IMO emission standards, making them more environmentally friendly and economical in the long run.
The new VM Motori MR504LH3 LX3 170 / LH3 150 Engine (NEW) is an excellent choice for both professional mariners and recreational equipment owners seeking a reliable, modern, and powerful marine engine that ensures smooth, quiet, and economical operation even under challenging conditions.
