2025 Mercury Marine® FourStroke 40 4-Cylinder Base
- Year 2025
- Make Mercury Marine®
- Model FourStroke 40 4-Cylinder
2025 Mercury Marine® FourStroke 40 4-Cylinder Base
2025 Mercury Marine® FourStroke 40 4-Cylinder
Held to a Higher Standard.There are plenty of good reasons these outboards rule the water. Start with no-worry reliability. More low-end torque for excellent acceleration. Increased fuel economy and outstanding overall performance. Enhanced fuel injection (EFI models) for boosted efficiency. A robust electrical system with a high-output alternator to keep batteries charged and fishing electronics humming. They have everything you need, and nothing you don't.
High-displacement, four-cylinder, single-overhead-cam design delivers optimum power and a smooth ride. Great for aluminum tiller, aluminum console, inflatable rigid hull (RIB) and soft hull, watersports, and fish & ski boats.
Engine
Engine Power
40 hp (30 kW)
Engine Type
Inline 4
Displacement
60.8 CID (995 CC)
Throttle
Full: 5500-6000 RPM
Oil Type
Recommended: Mercury FourStroke 25W40 Marine Oil
Gear Ratio (Primary)
2.33:1 | Shift: F-N-R
Emissions
CARB star rating: 3
Bore
2.56" (65 mm)
Stroke
2.95" (75 mm)
Ignition
ECM 07 Digital Inductive
Steering
Big Tiller/Remote
Cooling
Water-cooled with thermostat
Exhaust
Through prop
Operational
Operating Conditions
Shallow water trim range: 20°
Electric
Alternator
18 amp (226 watt)
Starter
Electric (turn-key)
Fuel System
Fuel System
Induction: 2 valves per cylinder, single overhead cam (SOHC) | Electronic Fuel Injection (EFI)
Fuel Type
Recommended: 87 octane / up to 10% ethanol
Dimensions
Length
Shaft: 20" (508 mm)
Weights
Dry Weight
Lightest model available: 260 lbs (118 kg)
Features
Features
Engine protection operator warning system: SmartCraft Engine Guardian | Compatible with SmartCraft digital technology: Yes | Trim system: Gas assist/ Power Tilt/ Power Trim
Color
Colors
Phantom Black