Mercury 350 HP ECT 6.2L Inboard Engine

Experience the perfect fusion of raw power, refined engineering, and legendary Mercury® reliability with the Mercury 350 HP ECT 6.2L Inboard Engine for sale. Engineered from the ground up specifically for marine applications, this V8 powerhouse delivers outstanding performance, intuitive handling, and a quiet, comfortable ride.

Whether you’re repowering a cruiser, runabout, or performance boat, the Mercury 6.2L inboard engine enhances your time on the water with quick acceleration, reduced vibration, and simplified maintenance. It’s not just a motor — it’s the heartbeat of a better boating experience.

What’s Included

• Mercury 350 HP ECT 6.2L V8 Inboard Engine

• SmartCraft Engine Guardian System

• Integrated Multi-Port Fuel Injection System

• Performance-Tuned Scroll Intake Manifold

• Color-coded maintenance points for easy service

• Full manufacturer warranty and support

Key Features

• Marine-Built V8 Power: 6.2L displacement and a performance-tuned intake manifold for enhanced torque and acceleration.

• Sporty Control: Adaptive Speed Control keeps rpm steady in turns — no throttle fuss required.

• Whisper-Quiet Operation: Intake resonator and aft-facing throttle body significantly reduce engine noise.

• Smooth Sailing: Advanced motor mount design minimizes vibration for a calm cockpit environment.

• Easy Maintenance: Color-coded service points are strategically placed for hassle-free upkeep.

• Legendary Durability: Designed and tested exclusively for marine environments — built to last.

Mercury 350 HP ECT 6.2L Inboard Engine Specifications

Engine Specs

• Horsepower: 350 HP / 261 kW

• Engine Type: V8, 2-valve/cylinder pushrod

• Displacement: 6.2 L / 377 CID

• Bore & Stroke: 4.0″ x 3.75″ (101.6 mm x 95.25 mm)

• RPM Range (WOT): 5000 – 5400

• Ignition: SmartCraft PCM 112 Digital Inductive

• Exhaust: Through-prop

Fuel & Oil

• Fuel Delivery: Multi-Port Electronic Fuel Injection (MPI)

• Fuel Requirement: Unleaded Regular 87 Octane Minimum / 90 RON Max with 10% Ethanol

• Oil Type: NMMA Certified FCW 25W-40 Synthetic Blend

Dimensions & Weight

• Length: 32″ (813 mm)

• Width: 30″ (762 mm)

• Height: 22″ (559 mm)

• Dry Weight (Engine Only): 862 lbs (391 kg)

Cooling & Safety

• Cooling System: Water-cooled with thermostat

• Water Drain System: Air Actuated “Season Extender”

• Security: SmartCraft Engine Guardian System

Top Benefits

• Exceptional Mid-Range Torque: Perfect for towing water sports or cruising effortlessly.

• Reduced Noise & Vibration: Keeps the helm calm and enjoyable during long rides.

• Reliable SmartCraft Integration: Real-time engine data and alerts at your fingertips.

• Built for Salt & Freshwater Use: Corrosion-resistant and low-maintenance design.

• Quick Acceleration: Ideal for larger runabouts, cruisers, and performance boats.

• User-Friendly Maintenance: Stay on the water longer with quick, straightforward servicing.

FAQs

Q: What type of fuel does this engine use?
A: The Mercury 350 HP 6.2L engine runs on regular 87-octane unleaded fuel, with up to 10% ethanol (90 RON).

Q: Is this engine compatible with SmartCraft systems?
A: Yes, it comes standard with SmartCraft technology and the SmartCraft Engine Guardian system.

Q: Does it support joystick piloting?
A: Joystick piloting is available on select compatible inboard configurations.

Q: What types of boats is this engine best for?
A: It’s ideal for repowering cruisers, sport boats, runabouts, and water sport boats needing reliable V8 power.

Q: What kind of maintenance is required?
A: The engine is designed for easy maintenance with color-coded access points and season-extending water drains.

Availability: 24 In Stock
Model: Mercury MerCruiser 350 HP ECT
Brand: Mercury Marine