Mercury 115EXLPT 115HP – Four Stroke 25-Inch Shaft

Mercury 115EXLPT 115HP FourStroke

The Mercury 115EXLPT is an advanced 115HP FourStroke outboard engineered for lightweight speed and thermal efficiency on high-transom vessels in the US recreational market. Utilizing a 2.1L inline four-cylinder SOHC architecture and a dry weight of 363 lbs, this standard gearcase model prioritizes top-end speed and agile handling. This 25-inch extra-long shaft model features a streamlined 2.07:1 gear ratio and standard right-hand rotation, making it ideal for lighter deep-V skiffs and coastal bay boats. Our dependable outboard propulsion systems deliver the mechanical precision required for high-speed coastal navigation.

Operational peak performance is aggressively maintained between 5000 and 6000 RPM, supported by Computer Controlled Multi-Port EFI for optimized fuel induction. The streamlined 2.07:1 standard gearcase minimizes hydrodynamic drag, allowing lighter hulls to achieve top speeds. Manufactured in the USA, this corrosion-resistant outboard utilizes an exclusive Integrated Dry Sump lubrication system, ensuring flawless oil management and a whisper-quiet ride during long days on the water.

Streamlined 2.07:1 Gearcase

Unlike the Command Thrust version, this model features a standard 2.07:1 gearcase. Its streamlined hydrodynamic torpedo profile cuts through the water with minimal drag, making it the superior choice for lighter boats where top-end speed and fuel efficiency are the priorities.

Integrated Dry Sump Lubrication

This 115HP FourStroke utilizes an advanced Integrated Dry Sump lubrication system. By evacuating oil from the crankcase immediately, it eliminates parasitic windage losses, running cleaner, cooler, and more efficiently than traditional wet-sump designs found in competing outboards.

2.1L High Displacement Powerhead

The 2.1L inline four-cylinder SOHC design maximizes combustion efficiency while reducing overall engine weight. This translates into reliable low-end torque that Boaters use when accelerating fast out of the hole and maintaining a steady cruise across open coastal bays.

SmartCraft ECM 70 Ignition

Equipped with the SmartCraft ECM 70 ignition system, this motor delivers precise digital control over engine timing. It networks effortlessly with modern helm displays, allowing captains to monitor real-time fuel consumption, RPM, and engine temperature for safer offshore navigation.

Mercury 3-Year Protection

Mercury Marine protects this 115HP outboard with a comprehensive 3-Year Limited Warranty for American owners. This factory-backed coverage helps support access to genuine replacement parts and certified technicians nationwide, reflecting a commitment to long-term maritime durability.

High-Speed Coastal Skiff Match

This standard gearcase 25-inch outboard is the ideal power match for lighter fiberglass center consoles, bay boats, and aluminum deep-V skiffs. It provides the rapid acceleration and top-end speed needed for reaching distant fishing grounds quickly and efficiently.

Maintenance & Longevity

Regular maintenance of the 5.2L Integrated Dry Sump oil system is vital for preserving the engine’s tight mechanical tolerances. Always flush the internal cooling passages with fresh water after each saltwater excursion.Maintenance note: Follow the manufacturer’s service procedures and lubrication specifications for the engine and gearcase.