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Mercury 350 HP ECT 6.2L
$8,250.00
Mercury MerCruiser 6.2 L 350 HP ECT marine engine — V-8, MPI fuel injected sterndrive power for cruisers and performance boats
Horsepower
350 HP
Fuel Type
gasoline
Displacement
6.2 L/ 377 CID
Stroke
3.75" (95.25 mm)
Rated Output
261 KW/ 350mph
In Stock (3 available)
Free shipping on orders over $500
90-day warranty included
Description
Buy new Mercury MerCruiser 6.2 L 350 ECT engines for sale or browse used Mercury MerCruiser 6.2 L 350 ECT marine engines for dependable power on the water. Designed for boat owners seeking performance, reliability, and efficient marine operation, this engine remains a leading option for vessel upgrades, repower projects, and recreational boating. Strong output. Smooth operation. Proven marine performance.
The Mercury MerCruiser 6.2 L 350 ECT is a high-performance V-8 marine gasoline engine engineered to deliver dependable power and responsive handling. Producing 350 horsepower, this engine supports efficient cruising, towing capability, and consistent operation across changing water conditions.
Built for modern marine performance, the engine delivers strong acceleration and impressive torque while maintaining smooth engine response. Its advanced design supports recreational boating applications where reliability and stable output are essential.
Equipped with Multi-Point Electronic Fuel Injection (MPI), the Mercury MerCruiser 6.2 L 350 ECT optimizes fuel delivery for improved throttle response and efficient engine performance. Integrated SmartCraft engine control technology provides advanced engine monitoring and simplified operation for greater control on the water.
Available with fresh water cooling or closed-loop cooling configurations, this marine engine is designed to promote long service life and dependable operation. Durable construction and trusted marine engineering continue to make the Mercury MerCruiser 6.2 L 350 ECT a preferred choice for engine replacement and marine performance enhancement.
Whether searching for used Mercury MerCruiser 6.2 L 350 ECT engines, planning a boat upgrade, or looking to buy new marine engines for sale, this model delivers dependable propulsion and long-term value for marine owners.
Key Features:
• Mercury MerCruiser 6.2 L 350 ECT V-8 marine engine
• 350 horsepower performance output
• Smooth acceleration and strong torque delivery
• Multi-Point Electronic Fuel Injection (MPI)
• SmartCraft engine control technology
• Fresh water and closed-loop cooling options
• Reliable sterndrive performance
• Durable construction for long-term use
• Consistent marine power and efficiency
• Designed for recreational and cruising applications
Specifications
SKUM8204
BrandMercury
CategoryInboard Engines
ConditionNew
Horsepower350 HP
Fuel Typegasoline
Displacement6.2 L/ 377 CID
No. of Cylinders8 cylinders
Stroke3.75" (95.25 mm)
Weight823.00 lbs
Rated Output261 KW/ 350mph
Dry Weight391 kg/ 862 lbs
Dimensions813mm x 762mm x 559mm
Frequently Asked Questions
What is the Mercury 350 HP ECT 6.2L engine?
The Mercury 350 HP ECT 6.2L is a V-8 marine inboard sterndrive engine built by Mercury Marine with about 350 horsepower (261 kW) from a 6.2-liter displacement engine. It’s engineered for strong acceleration, smooth performance, and modern marine use.
What does “ECT” mean?
ECT stands for Emission Control Technology, indicating that the engine meets specific emissions and fuel-control standards required for marine applications. (Depending on region, compliance details may vary.)
What are the key specifications of this engine?
Power & Performance: Horsepower: ~350 HP (261 kW) Displacement: 6.2 liters (377 cid) Engine Type: V-8 with 2 valves per cylinder Maximum RPM: ~5,000–5,400 rpm Fuel & Ignition: Fuel Delivery: Computer-controlled Multi-Port Electronic Fuel Injection (MPI) Fuel Requirement: Unleaded regular 87 octane minimum or 90 RON max with up to 10 % ethanol tolerance Ignition: SmartCraft PCM 112 digital Inductive. Dimensions & Weight: Weight (dry): ~862 lbs (391 kg) Size: ~32″ L × 30″ W × 22″ H (813 × 762 × 559 mm)
What fuel should I use?
Use unleaded regular gasoline (87 octane, R+M/2) minimum, with up to 10 % ethanol tolerated. Some regions recommend fuel up to 90 RON. Always follow Mercury’s guidelines for your specific market.
Does this engine use electronic throttle and shift controls?
This engine can be configured with mechanical shifting, or optionally with SmartCraft DTS (Digital Throttle & Shift) and electronic throttle control, depending on the installation package.
What cooling system does it use?
The engine is freshwater cooled with options for SeaCore corrosion protection, or standard water-cooled with a thermostat, depending on installation.
What oil and maintenance does this engine require?
NMMA-certified FC-W 25W-40 synthetic blend (or equivalent per Mercury guidelines). Routine service tasks include: Regular oil and filter changes Fuel filter and injector inspection Cooling-system checks Checking belts, hoses, and belts
How efficient is the fuel consumption?
Actual fuel economy varies by boat size, load, propeller choice, and operation. Like most marine sterndrives, efficient cruise is typically at mid-range rpm with fuel use rising at wide-open throttle — exact figures depend on your vessel.
Can this engine be used in saltwater?
Yes if properly maintained. Marine cooling and corrosion management (such as anodes and SeaCore options) should be part of your installation and routine maintenance to help protect from saltwater corrosion.
What drives or gearboxes are compatible?
The Mercury 350 ECT 6.2L pairs with common sterndrives (e.g., Bravo One, Bravo Two, Bravo Three) depending on hull design and application requirements.
Is this engine reliable?
Mercury sterndrives are widely used and engineered for recreational boating. Reliability depends heavily on regular maintenance, proper installation, fuel quality, and correct operating use.
