The 115hp outboard motor is one of the most popular outboard motors for recreational boaters. This powerful and reliable motor is designed to provide excellent performance in a variety of conditions.

The Mercury 115hp is a 2.1L inline-four 4-stroke outboard, available in standard, Pro XS, and Command Thrust (CT) models, weighing as low as 359 lbs (163 kg). It features 8-valve single overhead cam (SOHC) technology, providing high torque, great fuel economy, and 5000-6000 RPM range.

Key Specifications

Engine Type: Inline 4-cylinder (4-stroke)
Horsepower: 115 HP (86 kW)
Displacement: 2.1 Liters (128 cubic inches)
Weight (Lightest Model): 359 lbs (163 kg)
Full Throttle RPM: 5000-6000
Fuel Induction: Computer Controlled Multi-Port Electronic Fuel Injection (EFI)
Gearcase Options: Standard or Command Thrust (CT – designed for larger props/heavy loads)
Alternator: 35 amp / 441 watt with water-cooled voltage regulator
Steering: Hydraulic or Mechanical Cable; Big Tiller compatible
Warranty: 3+3 = 6 years (standard limited)

Key Features

Lightest in Class: Up to 50 lbs lighter than some competitors, improving speed and fuel efficiency.
Pro XS Model: Tuned for faster hole shots, higher RPM, and better performance.
Command Thrust (CT): Features a larger gearcase for improved maneuverability and lifting heavy boats.
SmartCraft Technology: Includes SmartCraft Engine Guardian to protect the motor.
Corrosion Protection: Uses low-copper aluminum alloys and advanced painting processes for saltwater durability.