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Modern Marine Engines Offer Technologically Sophisticated Systems, Higher Horsepower, and Less Weight, With Improved Efficiency as Well
If you’ve been paying any attention at all to the boating market, you’ll know that power choices just keep getting better and better. This has allowed builders to create larger and larger boats, as horsepower increases with the larger models, but innovation isn’t limited to those huge diesels. Whether you’re looking at mid-range diesels, or the latest generator technology, or even state-of-the-art outboards, you have a lot of great options from which to choose. Here are just a few of them.
Caterpillar C32B and C2.2B
Recently, Caterpillar has introduced the C32B engine with power options ranging from 2025mhp to 2433mhp. With over 30 vessels now in service, the C32B has proven it is the perfect fit for your new motoryacht, sportfisher, or repower project.
Building on the success of the C32B, the all new C2.2B adds to the Cat Marine sportfishing portfolio with a modern, compact genset platform in 18 and 25 kWe prime ratings. Coming in mid 2025, the C2.2B differentiates itself amongst other genset offerings and stands out from the crowd of plain white boxes, which has become the sound-enclosed genset default. It was designed from the ground up by Caterpillar Marine’s design team, with easy installation and easy operation in mind. Installation is as plug-and-play as it gets, with all the essential fluid connections available neatly organized on the enclosure end panel, with both port- and starboard-side service options available. The user operation panel features intuitive controls with “traffic light” colored command prompts ensuring easy operation, with a more advanced control option integrating multi-genset load share and power management capabilities. This makes battery or solar integration easily achievable.
“Cat Marine ensures battery and solar integration are easily achievable with this next-generation genset.”
Cummins/Onan QD Generator
The new QD series of generators for larger fishing or mothership vessels all feature reliable power from the Cummins four-cycle, four-cylinder B4.5 diesel engine. The Cummins Onan Digital Display provides user-friendly diagnostics with extensive engine and alternator information right at your fingertips. They all feature electronic frequency control, which protects digital appliances and computers, which require reliable power. The generators are available in two versions: The first features power outputs of 40–80 kWe, and the second with outputs of 70-110 kWe. They are available in 50 or 60 Hz versions and are EPA Tier 3 and EU Stage V emissions certified.
- Cummins Onan Digital Display for easy diagnostics
- Electronic frequency control to protect digital appliances
- Two versions available: 40–80 kw and 70–110 kw
- EPA Tier 3 and EU Stage V emissions certified
Lugger L4105 and L6105
Northern Lights builds two of the most popular diesel engines in history: The Lugger L4105 and L6105. Lugger’s have always enjoyed a deserved reputation as durable workhorses, built on a robust design for long-life use. They also meet all the stringent emissions and regulatory requirements. The L4105 come in ratings from 174 hp to 300 hp, and the L6105 is rated from 224 hp to 425 hp. The engines feature all the things that forged Lugger’s reputation for durability, including individual cylinder heads for easy service, forged crankshaft, replaceable wet liners and state-of-the-art electronics.
- Individual cylinder heads for easy service
- Forged crankshaft and replaceable wet liners for durability
- Ratings from 174 hp to 425 hp
“Lugger’s reputation for longevity and performance remains unmatched in the industry.”
MAN V12X
The recently launched MAN V12X is designed for fishermen who need power, efficiency, and reliability. With a new 29.6-liter block, it delivers up to 2200 hp at 2300 rpm, boosting torque to 7350 Nm, surpassing the previous V12-2000. Its upgraded cooling system ensures long-lasting performance, while the standard hydraulic valve lash adjustment eliminates regular checks. A 2200-bar common rail fuel injection system reduces fuel consumption and emissions, making it more eco-friendly. Built for tough conditions, the MAN V12X delivers the power and reliability you need to perform at your best.
- 29.6-liter block with up to 2200 hp at 2300 rpm
- Upgraded cooling system for long-lasting performance
- 2200-bar common rail fuel injection system for fuel efficiency
MTU Series 2000
The 2000 Series from MTU comes in 10V, 12V and 16V configurations in ratings from 1360 hp up to 2600 hp. The M96L is both EPA Tier 3 Recreational and IMO Tier II certified and boasts a third-generation common rail fuel injection system. Patented improvements to the common rail system, the sequential turbocharging and the ADEC electronic control system have allowed MTU to achieve higher power outputs with lower fuel consumption and fewer emissions. The 2000 Series has become the power of choice for many builders who have pushed the envelope in terms of vessel size.
- EPA Tier 3 and IMO Tier II certifications
- Third-generation common rail fuel injection system
- Lower fuel consumption and fewer emissions
“Many builders pushing vessel size limits rely on the MTU Series 2000.”
Scania DI16
Built on a Compacted Graphite Iron (CGI) engine block and employing a simple wastegate turbocharger, the 1150 hp Scania DI16-liter engine delivers amazing performance without the need for additional turbos or superchargers. The resulting lighter weight, combined with Scania’s proprietary Engine Management System (EMS) and common rail extra high-pressure injection system (XPI), optimizes fuel delivery, enabling impressive torque, lower noise and exceptional fuel efficiency. Viking Yachts recently installed a pair in a new 48 Convertible, providing an impressive cruise speed of 34 knots with a top speed of 38 knots. Scania USA Inc
- 1150 hp with a lightweight design
- Optimized fuel efficiency through Scania’s proprietary Engine Management System (EMS)
- Installed in Viking’s 48 Convertible, achieving a 34-knot cruise speed
Volvo Penta Assisted Docking System
Originally made for Volvo Penta IPS drivelines, the Assisted Docking system provides better control when docking by automating your intentions and compensating for variables like wind and current. It seamlessly integrates the advanced sensors of Volvo Penta’s GPS-based Dynamic Positioning System (DPS) to offer an unparalleled docking experience, even in difficult conditions. With the joystick, you control the boat’s path and speed, while the system compensates for elements like wind and current. Using the DPS, the system knows the boat’s exact position and heading. Push the joystick forward, and the system lays out a straight path that the boat follows, continuously fine-tuning steering and thrust. Release the joystick, and the boat will maintain its position. Rotate around a fixed position by turning the joystick. To secure your position against the dock, push the joystick to the side and activate the “Side Push” feature on your display.
- Automates docking while compensating for wind and current
- Uses Volvo Penta’s GPS-based Dynamic Positioning System (DPS)
- Offers joystick control for intuitive maneuvering
Yanmar 6LT Series
Complementing the largest common-rail marine diesel engine lineup available, the 6LT range from Yanmar offers compact, lightweight and high-performance solutions ideal for the sport-fishing and light-duty commercial sectors. These global emission-certified inline six-cylinder, 8.71 L, four-stroke, vertical water-cooled diesel engines offer leading fuel economy and feature Yanmar’s proprietary fuel mapping for reliable and consistent output performance. The three output models from 500 to 640 hp are controlled by the next-generation Yanmar VC20 system, for three engines with up to four stations. The 2530-rpm engines are custom engineered to offer direct connectivity to NMEA and J1939 CAN-bus networks and are suitable for boats up to 55 feet. The 6LT640 model creates a high-power density of 75 hp/l.
- 500 to 640 hp models with leading fuel economy
- NMEA and J1939 CAN-bus connectivity
- High-power density of 75 hp/l
Cox Marine Diesel Outboards
Cox produces purpose-built, high-powered diesel outboard V8 engines in 300 hp and 350 hp versions. These outboards provide next-generation technology that responds to global demands for fuel efficiency, safety, and sustainability, with a low total cost of ownership. Cox Marine diesel outboards bring a new alternative to the market, which brings long-term benefits for sustainable marine operations. Designed for maximum speed, Cox Marine’s diesel outboards run for longer on less fuel, lowering operational costs and delivering exceptional durability and performance. To ensure greater reliability, Cox Marine outboards have extended service intervals, meaning fewer trips for upkeep and more time on the water.
- Next-gen fuel efficiency and sustainability
- Lower operational costs with extended service intervals
- Durability for long-term marine use
Honda/McLaren M300
McLaren Engineering, the R&D division of Linamar Corporation, has formed a new alliance with Honda Marine to produce the all-new McLaren Performance M300, a performance-inspired marine outboard that delivers enhanced top-end power, premium quality, outstanding reliability and durability. Modifications to existing Honda outboards include the integration of a new camshaft for enhanced valve timing and high lift, a new Engine Control Unit (ECU) that controls protection and boosts efficiencies, new fuel injectors for higher fuel supply, and excellent fuel efficiency. The result is a performance-inspired outboard engine with an improved horsepower-to-weight ratio.
- Enhanced valve timing and fuel injectors for efficiency
- Upgraded ECU for optimized performance
- Performance-inspired horsepower-to-weight ratio
Mercury Verado 400 hp V10
Mercury’s 5.7L 350 hp and 400 hp Verado outboard engines are the only V10 outboard engines on the market. These exceptionally quiet and smooth engines are not only compatible with the latest Mercury SmartCraft technologies but will also be offered with an optional dual-mode 48V/12V alternator to seamlessly pair with Navico Group’s Fathom e-Power System, an integrated lithium-ion auxiliary power management system, providing boaters the opportunity to eliminate an onboard generator system. Weighing only 695 pounds and with the same industry-leading 26-inch mount spacing as the company’s V8 outboards, the V10 engines maximize compatibility with current boat designs. The naturally aspirated 5.7L V10 features a performance-inspired quad-cam design which provides exceptional speed and acceleration. A class-leading 150-amp alternator swiftly charges onboard batteries and intelligently supports the boat’s electrical system.
- The only V10 outboards on the market
- Integration with SmartCraft technologies and Fathom e-Power System
- A class-leading 150-amp alternator for superior charging
Suzuki V6 200
Suzuki has brought back a popular model for anglers who want the torque, powerful hole shot, and strong acceleration of the 3.6-liter, 24-valve V6 powerhead in a 200 hp engine. Being relaunched as a 2025 model, the new DF200 four-stroke is an ideal power match for today’s heavy center consoles that can benefit from a little extra hole shot. The V6 200 comes with proven technology, including digital, sequential electronic fuel injection and Suzuki’s offset driveshaft design, and two-stage gear reduction that allow this engine to swing a larger propeller. Together with this offset driveshaft, Suzuki’s 55-degree V6 block creates a more compact engine that fits better and balances better on the transom of today’s boats. The DF200 V6 will be offered alongside the company’s existing in-line four-cylinder 200 hp four-stroke, giving boaters two great options. The 200 V6 is offered in 20- and 25-inch shaft lengths and a choice of black or white colors with attractive matching graphics. Suzuki Marine
- 3.6-liter V6 powerhead with 24-valve technology
- Enhanced torque and acceleration for center consoles
- Available in black or white with sleek graphics
Yamaha 450 hp XTO
Yamaha Marine has updated their XTO Offshore outboard, which now features enhanced technology and 450 hp. Featuring the same 5.6-liter of big-block displacement as the original 425 hp XTO, the updated XTO 450 improves upon the powerful platform that changed the offshore boating game. The XTO Offshore 450 comes with more charging power, featuring a three-phase, simultaneous charging system that delivers an incredible number of net amps at low rpm. Using Phase Angle Control (PAC) componentry to create a super-strong magnetic field, XTO Offshore 450 models produce up to 96 net amps per engine in neutral, plenty of power for today’s high-demand devices like gyro stabilizers, air conditioning, and sound systems. It can even eliminate the need for an on-board generator. The system also prioritizes charging to the starting batteries. Every XTO Offshore 450 comes equipped with Yamaha’s exclusive TotalTilt feature for faster, easier engine tilting. When enabled, it allows complete tilt up from any position with a simple double-push of the “UP” trim/tilt button, or full tilt down (until trim ram contact) by the same double push of the “DOWN” trim/tilt button.
- More charging power for high-demand devices
- 96 net amps per engine in neutral
- Exclusive TotalTilt feature for easy engine tilting
From powerful diesels to cutting-edge outboards and innovative docking systems, the 2025 marine engine lineup is full of game-changing advancements. Whatever your needs, there’s a new and improved option ready to take your sportfishing to the next level.
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