2025 Mercury Marine Mercury Diesel 6.7L 480

Mercury Diesel 6.7L
480 - 550hp
Take your life on the water to new destinations with the Mercury Diesel 6.7L engine. This turbocharged workhouse redefines diesel performance for sport yachts and other large vessels, blending premium comforts and extended range with exceptional speed and acceleration.

Features may include:

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.