VM Motori MR504LX3 LX3 170 / LH3 150 Engine (NEW): The Most Powerful MR504 Series Solution for 2025
The VM Motori MR504LX3 LX3 170 HP and MR504LH3 150 HP are the most advanced marine diesel engines of the MR504 series, designed to provide maximum power, top-level reliability, and optimal efficiency even in the most challenging conditions. These next-generation 4-cylinder, 2.0-liter engines feature exceptional structural strength, efficient fuel combustion, and modern technologies that ensure quiet, stable, and smooth operation for boats ranging from 20 to 40 feet.
The LX3 170 HP version is the most powerful modification of the MR504 series, specifically designed for higher speeds, more intense loads, and a sportier sailing style. The LH3 150 HP variant is more economical yet still an extremely powerful model, also featuring all the advanced technologies of the MR504 series. It is the ideal choice for boats requiring a quiet, reliable, and easy-to-maintain engine.
These engines feature a 4-cylinder 2.0-liter block, offering an excellent power-to-weight ratio. The engines are lightweight and compact, taking up minimal space in the engine room and not burdening the boat’s structure. This provides better stability, reduced noise, and more precise control for both motorboats and yachts. The MR504LX3 LX3 170 / LH3 150 Engine (NEW) remains a popular choice for both new boats and as a replacement unit for modernizing older models.
The engines utilize a 1600 bar pressure Common Rail fuel injection system, ensuring highly precise fuel delivery and optimizing the combustion process. Such technical advancements reduce fuel consumption, improve engine response, and decrease emissions. The Common Rail system also reduces vibrations and noise, making sailing much more comfortable.
Another important technology is the single overhead camshaft distribution, driven by a toothed belt. This is a proven and reliable system, characterized by quieter operation, simpler maintenance, and lower operating costs. This solution is ideal for marine engines that need to operate stably and smoothly for many years.
Power in the MR504LX3 and MR504LH3 models is generated using a fixed geometry turbocharger (FGT). This turbocharger ensures constant air pressure, quick response, and precise power development without delays. This is crucial for boats requiring instant thrust and excellent acceleration, especially when climbing waves or sailing at higher speeds.
The engines feature a modern dual cooling system, consisting of fresh and saltwater circuits. This system maintains optimal engine temperature even under extreme conditions and minimizes the risk of corrosion, especially when sailing in marine regions. Removable hoses facilitate maintenance, allowing access to key components and reducing service time.
Stability and comfort during sailing are ensured by built-in balancing shafts, which reduce vibrations across the entire RPM range. This provides the engine with smooth operation, and the user with a quiet, pleasant, and smooth sailing experience. This feature is especially appreciated in sailing yachts, where noise and vibration significantly impact comfort.
The VM Motori MR504LX3 LX3 170 / LH3 150 Engine (NEW) is widely used in the following boats: sports and recreational motorboats from 18 to 30 feet, motor yachts from 20 to 35 feet, RIB type boats, sailing yachts as a main or auxiliary engine, as well as commercial coastal and service vessels. It is the most versatile and powerful choice of the MR504 series, suitable for both recreational and professional needs.
The standard package includes a flywheel with housing, a 12V starter, a 110A alternator, oil and fuel filters, an air filter, a fresh water circulation system, a bronze sea water pump, a stainless steel exhaust gas/water mixer, flexible mounting brackets, an electronic control panel, and an 8-meter cable extension. Additionally, a hydraulic reverse gear and flying bridge control panel can be ordered.
Technical data shows that this is an exceptional engine: 2.0 L displacement, 4 cylinders, Common Rail injection, 150–170 HP power, 360+ Nm torque, approximately 250 kg weight, 802 × 720 × 757 mm dimensions, emissions comply with EPA TIER 3, RCD2, and IMO standards.
The new VM Motori MR504LX3 LX3 170 / LH3 150 engines are among the most reliable in the modern marine market. They are designed for a combination of power, efficiency, and longevity, making them an excellent choice for anyone seeking a modern, efficient, and durable marine engine.
