Excellence in small marine diesel engines
At VETUS, our heritage is rooted in delivering innovative and reliable solutions for marine propulsion. Whether you have a launch, sailing yacht, canal boat, or small cabin cruiser, we've got you covered.
The M-Line series of small marine diesel engines offer the best in terms of high power and torque output, reliability, durability, and fuel-efficiency. With years of dedicated development and positive customer feedback, we therefore are proud to say that the M-Line engines have proven their quality and reliability over time.
The M-line engines are available in 12 different models, with power output ranging from 12 hp to 52 hp.
Exceptional heat management
Boat engine rooms can often heat up to temperatures as high as 70°C, consequently affecting the performance of the engine and other surrounding onboard equipment negatively. If not managed properly, high heat environments will, eventually, increase the chances of downtime and costly maintenance.
Due to our commitment to innovation and product quality, we have designed an elegant yet intelligent and efficient solution: a water-cooled aluminum top cover. Unique in the marine industry, this ingenious cooling element, located directly above the cylinder head, absorbs radiant heat from the engine, resulting in a significant temperature reduction of up to 15°C (-20%). Consequently, the engine receives a more fuel-efficient air supply leading to better combustion, fuel-economy and greater performance.
Quiet operation for a peaceful boating experience
Boating is often about enjoying the tranquility of the water, and we commit to enhancing this carefree experience to new levels. Therefore we've designed our M-Line engines to operate as quietly as possible. Our exclusive sturdy aluminum top cover combined with a newly designed air filter housing will help reduce the engine noise level significantly.
Tests show a reduction of approximately 5 dB(A) in noise and near-silent operation at cruising speed of around 2200 rpm. This remarkable feature of our small marine diesel engines provenly adds to the ever-wanted pleasure of a quiet boat trip.
The improved M-Line Marine Diesel Engine features*
Our redesigned M-Line engines incorporate several new features to make both the builder’s and boater’s life easier. We've ensured easy access to service parts and a safer, improved wiring system, considering all aspects.
All M-Line engines come equipped with an electric fuel pump actuated by an ignition switch, a new air inlet filter housing to reduce the induction sound level, and an enhanced heat exchanger unit. In addition, a high output marine alternator for fast recharging of batteries also fits with every M-line leaving our production facility.
These improved features come with no compromise to environmental regulations. The redesigned M-Line engines meet the Recreational Craft Directive 2012/53/EU and Russian RRR emission standards, while some models also comply with the BSOII regulations.
Due to highlighting our focus on continuous improvement, reliability, and know-how, the M-line engines simply reflect our promise.
* The M-line engines can be supplied with an adapter kit for Volvo Penta sail drives (110S/120S and 120 SB)
Everything you are used to, but better!
Despite these innovations, we have not compromised on any of the already trusted features of our small diesel boat engines. With a power range from 12 hp to 52 hp, the M-Line thus remains the preferred choice for many boat builders.
When you become a VETUS customer you're not just purchasing a small marine diesel engine. You're investing in a product borne of unwavering commitment to quality and backed by unmatched customer support. With the M-line, you are sure to have a diesel engine that will give you carefree boating experience for years to come.
All M-Line Diesel Engines are HVO approved and can be operated using more sustainable fuels.