2024 Mercury Marine® FourStroke 40 EFI Base
- Year 2024
 - Make Mercury Marine®
 - Model FourStroke 40 EFI
 
2024 Mercury Marine® FourStroke 40 EFI
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.
Mercury EFI outboards deliver reliable turnkey starts, improved fuel efficiency, and instant throttle response.
Engine
							Engine Power
							40 HP (30 KW)
						
						
							Engine Type
							Inline 3
						
						
							Displacement
							45.6 CID (747 CC)
						
						
							Throttle
							RPM: 5500-6000
						
						
							Oil Type
							Recommended: Mercury FourStroke 25W40 Marine Oil
						
						
							Gear Ratio (Primary)
							2.00:1 | Shift: F-N-R
						
						
							Emissions
							CARB star rating: 3
						
						
							Bore
							2.56" (65 mm)
						
						
							Stroke
							2.95" (75 mm)
						
						
							Ignition
							ECM 70
						
						
							Steering
							Remote | Remote
						
						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) | Cooling: Water-cooled with thermostat | Exhaust: Through prop
						
						
							Fuel Type
							Recommended: 87 octane / up to 10% ethanol
						
						Dimensions
							Length
							Shaft: 15" (381 mm) | 20" (508 mm)
						
						Weights
							Dry Weight
							Lightest model available: 204 lbs (93 kg)
						
						Features
							Features
							Engine protection operator warning system: Low oil pressure/Over-rev/Overheat | Compatible with SmartCraft digital technology: Yes | Trim system: Gas assist/Power Tilt/Power Trim | Lubrication system: Wet sump | Shallow water trim range (degrees): 20
						
						Color
							Colors
							Phantom Black