2025 Mercury Marine® Fourstroke 40hp EFI 4 Cylinder Base

2025 Mercury Marine® Fourstroke 40hp EFI 4 Cylinder

It’s simple. You have places to go, and the Mercury 40 to 60hp FourStroke family of outboards is the easiest way to get there. Electronic fuel injection for reliable starts and increased efficiency. Smooth performance. Impressive torque. Rugged durability. It’s everything you need to get more out of your time on the water.

Features may include:

High-Output Alternator

An 18-amp alternator helps keep batteries charged and fishing electronics humming long into the evening bite.

Command Thrust Gearcase

Designed to sit lower in the water and turn larger props, the available Command Thrust gearcase lifts heavy boats on plane more easily and holds them there at lower speeds without impacting top speed.

Electronic Fuel Injection (EFI)

From the moment you crank the engine to the moment you drop the throttle, EFI technology responds with instant power. Surefire starting in all weather conditions. Smooth, efficient acceleration. Maximum fun.

Convenient Maintenance

We made maintenance easier with features like color-coded touch points, an easy-access water-separating fuel filter and an oil filter drip tray, which helps you get the job done with less mess.

Tiller Handle

With a range of adjustments, ergonomic controls and the flexibility to be set up for left- or right-handed operation, the available advanced tiller puts you in complete command of your adventures.