2025 Mercury Marine Mercruiser 6.2L 300 ECT Inboard

One size doesn't fit all

Proven technology, rock-solid reliability and an unbeatable combination of performance and fuel efficiency.

Features May Include:

Advanced MPI

• The multi-point electronic fuel injection system fine-tunes the air-to-fuel ratio for the ideal combination of power and efficiency.

Adaptive Speed Control

• The Adaptive Speed Control feature lets you maintain engine rpm despite changes in load or conditions. Climbing large swells is easier. Cruising at low speeds is smoother. Carving out tight turns is effortless.

Wide-Band Oxygen Sensors

• Sensors in the exhaust system continuously monitor oxygen levels, enabling the engine control module to deliver a precise amount of fuel for maximum efficiency. It’s intelligent technology that takes you farther.

Ample Charging Output

• A powerful alternator delivers 70 amps of charging power at wide-open throttle – perfect for keeping onboard electronics running long into the fun.

Engine Guardian

• Explore farther with confidence knowing that the Engine Guardian system is at work. It monitors the engine and, if necessary, can adjust engine functions to help get you home safely.