Diesel 6.7L (135-280hp)

Reliable. Easy to maintain. Integrated controls.

The mechanically fuel injected 6.7L Mercury Diesel engine sets a new benchmark for durability and reliability.

Intuitive, Innovative Features

Power & Torque

The high-displacement turbocharged engine spools up massive torque, generating instantly responsive power to get big boats out of the hole and deliver a midrange punch when you need it.

Closed Cooling System

A thermostatically controlled closed-loop freshwater cooling system protects the engine in both fresh and saltwater.

Smooth & Quiet

From vibration-dampening engine mounts to an air filter strategically positioned to also reduce turbo noise, the 6.7L engine is optimized for a smooth, quiet ride.

HPCR Fuel Injection

The high-pressure common rail (HPCR) fuel injection system fine-tunes the air-to-fuel ratio to enhance acceleration, top speed and efficiency.

Grid Heater

The 6.7L engine is ready for all-season adventure, with a grid heater that makes cold weather starts easy.

Mercury Diesel Advantage

Easy Ownership

Top-mounted fluid reservoirs, a self-draining oil filter and an easy-to-reach oil dipstick keep maintenance and service simple.

Reduced Weight

With exceptional power-to-weight ratios, Mercury Diesel engines pack big-time propulsion in a lightweight package. The difference: quicker acceleration, faster planing and easier handling.

Durability

Durability and reliability are in the details, like thermostatically controlled closed-cooling systems and advanced corrosion resistance. Our diesel engines are designed to go the distance.

Efficiency

Mercury Diesel engines run clean and run easy, without the harshness or fumes from traditional diesels. They can also deliver up to 50% better fuel efficiency compared to gas engines of the same horsepower.

SmartCraft® The Power to Do More

SmartCraft® is a full suite of digital technologies, fully integrated and totally coordinated. Gauges, sensors, vessel systems, computer-controlled features – one total package, one high level of control. Make your boating experience easier, safer and a lot more enjoyable.

View All SmartCraft Technology

Digital Throttle & Shift

Digital Throttle & Shift (DTS) controls deliver silky-smooth shifting and instant throttle response, with zero hesitation. Integrated controls for select SmartCraft technologies make boating even easier.

Learn More

VesselView Mobile

VesselView Mobile® allows you to use a mobile device to connect wirelessly with your Mercury engine, providing quick, convenient access to your own custom gauges, maintenance logs and performance data, like engine hours and fuel tracking.

Learn More

Joystick Piloting

Intuitive joystick controls provide digital anchoring at the touch of a button and 360 ̊ maneuverability in tight spaces when you need it most. In open water, the Auto Heading and Route features let you lock in your course for simplified control.

Learn More

VesselView

A VesselView® display brings your engine’s stats and digital controls to your fingertips, letting you monitor engine performance while controlling connected SmartCraft digital technologies all from one intuitive interface.

Learn More