FourStroke 25 EFI: Pure Pleasure and Freedom

Mercury FourStrokes have long led the pack in clean, quiet, fuel-efficient outboard power, and now the gap has grown even wider. We combined innovative engineering with advanced reliability features to make our outboards run clean, stay quiet and deliver smooth, responsive performance – all while cutting your fuel and maintenance costs.

The 25 and 30 horsepower models have an industry-first batteryless EFI system for easier starting, smooth running and improved efficiency.

Consistent Starting
Mercury FourStroke EFI outboards deliver consistent, easy starts, smooth operation and reliability. The 25 and 30 hp models are the industry's first batteryless EFI outboards.

Born to be Smooth
All portable and mid-range Mercury FourStrokes feature INLINE DESIGNS for inherently smooth operation.

Clean Power
All Mercury FourStrokes are designed to run clean, helping to protect the environment for generations to come. Every Mercury mid-range FourStroke engine carries a CARB THREE-STAR ULTRA-LOW EMISSIONS RATING.

Easy Shifting
PRECISION ENGINEERED SHIFT SYSTEM delivers smooth shifting for an improved driving experience.