Mercury 40HP EFI FourStroke Outboard Motor – 20″ Shaft, Electric Start & SmartCraft

Power your boat with confidence using the Mercury 40HP EFI FourStroke Outboard Motor, a reliable and fuel-efficient engine designed for recreational boaters, professional anglers, commercial operators, and marine enthusiasts. Combining Mercury’s advanced engineering with Electronic Fuel Injection (EFI), this versatile four-stroke outboard delivers dependable performance, outstanding fuel economy, and smooth, quiet operation on every trip.

At the heart of this engine is a 995cc inline 4-cylinder powerhead, producing 40 horsepower with impressive torque and responsive acceleration. The advanced Electronic Fuel Injection (EFI) system ensures instant starts in all weather conditions while maximizing fuel efficiency and reducing emissions.

Designed for durability, the Mercury FourStroke features Mercury’s renowned corrosion protection, including hard-coat anodizing and a premium multi-stage Phantom Black finish, providing long-lasting protection in both freshwater and saltwater environments.

The SmartCraft® Engine Guardian monitoring system continuously protects the engine by monitoring critical operating conditions, while full SmartCraft compatibility allows integration with compatible digital gauges for real-time engine performance, diagnostics, and fuel management.

This model includes electric start, a 20-inch shaft, and is available with Big Tiller or Remote Steering, making it suitable for fishing boats, aluminum boats, utility boats, workboats, center consoles, and small commercial vessels. Multiple trim options, including Power Trim, Power Tilt, and Gas Assist, provide effortless engine positioning for optimal performance.

Key Features

• Brand new Mercury 40HP EFI FourStroke outboard motor
• Powerful 995cc inline 4-cylinder engine
• Advanced Electronic Fuel Injection (EFI)
• 40 horsepower output
• Electric start system
• 20-inch shaft
• Big Tiller or Remote Steering options
• SmartCraft® Engine Guardian protection
• SmartCraft® digital monitoring compatible
• SOHC design with two valves per cylinder
• Water-cooled with thermostat
• Power Trim, Power Tilt, or Gas Assist trim options
• Through-prop exhaust system
• Premium Phantom Black finish
• Excellent fuel economy and quiet operation
• Built for freshwater and saltwater use

Technical Specifications

• Engine: Inline 4-Cylinder Four-Stroke
• Horsepower: 40 HP
• Displacement: 995cc (60.8 cu. in.)
• Fuel System: Electronic Fuel Injection (EFI)
• Starting: Electric Start
• Steering: Big Tiller or Remote
• Shaft Length: 20 Inches
• Full Throttle Range: 5,500–6,000 RPM
• Alternator Output: 18 Amp / 226 Watt
• Gear Ratio: 2.33:1
• Cooling System: Water-Cooled with Thermostat
• Gear Shift: Forward • Neutral • Reverse
• Dry Weight: 260 lbs (118 kg)
• Recommended Fuel: 87 Octane (Up to 10% Ethanol)
• Recommended Oil: Mercury FourStroke 25W-40 Marine Oil