6.2L V8 Inboard 300 - 350hp

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

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

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.

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.

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.

Noise Reduction

Hear your friends and family talk. Hear yourself think. Enjoy your time on the water. A MerCruiser engine is still as powerful as ever. Thanks to sound-dampening advancements, it’s just not so loud about it.

Performance

High-displacement engines and multi-port fuel-injection systems maximize performance from every drop of fuel. You’ll enjoy quick acceleration, instantly responsive power and total fun.

Effortless Ownership

A redesigned service access has simplified what was once a hassle, bringing all service points to a single easily reachable location, color-coded for owner-friendly maintenance.

Durability

Through grueling endurance test cycles – in the lab and on the water – Mercury has refined every MerCruiser engine into an unflinching workhorse, built with better alloys and superior paints that can stand up to the harshest conditions.

Whether your ideal day means towing family and friends, aimlessly joyriding or dropping the hammer, MerCruiser offers the drive to fit your needs. It’s the perfect complement to premium engine performance.

name

Mercruiser 6.2L 300 ECT Inboard

Mercruiser 6.2L 350 ECT Inboard

Alternator amp / Watt

Fully regulated belt-driven 70 amp (882 watt)

Fully regulated belt-driven 70 amp (882 watt)

Displacement (L)

6.2

6.2

Engine type

V8, 2-valve/cylinder pushrod

V8, 2-valve/cylinder pushrod

HP / kW

300 Hp / 224 kW

350 Hp / 261 kW

Maximum RPM (WOT)

5000-5400

5000-5400

Oil maintenance interval

-

-

Oil sump volume

5 qts

5 qts

Peak Torque

-

-

Recommended fuel

90 RON 10% Ethanol Maximum Unleaded Regular-87 Octane Minimum

90 RON 10% Ethanol Maximum Unleaded Regular-87 Octane Minimum

Recommended oil

NMMA Certified FCW 25W-40 Synthetic Blend

NMMA Certified FCW 25W-40 Synthetic Blend

Weight (engine only)

-

-

Weight (incl. transmission)

-

-