Suzuki DF115A 115HP – FourStroke 25-Inch Shaft

Suzuki DF115A 115HP FourStroke EFI

The Suzuki DF115A is a high-authority FourStroke EFI 115HP outboard engineered for demanding high-transom applications in the North American maritime sector. Boasting a robust 2044cc inline four-cylinder DOHC 16-valve powerhead and weighing 412 lbs, this unit provides a superior power-to-weight ratio for sustained offshore operations. This 25-inch extra-long shaft model is perfectly matched for offshore walkarounds and large bay boats requiring dependable outboard propulsion systems with extreme propeller reach and reliable mechanical integrity.

Peak operational performance for this Suzuki 115HP is achieved between 5000 and 6000 RPM, ensuring consistent heavy-load thrust. The aggressive 2.59:1 gear ratio facilitates the mechanical translation of the torque curve into rapid hole-shot capability and steady hull planing. This outboard exemplifies Japanese engineering reliability for offshore salt-water use, maintaining high thermal efficiency while resisting the corrosive effects of harsh coastal environments.

Technical Specifications of Suzuki DF115A

• The 2044cc inline four-cylinder DOHC 16-valve powerhead delivers massive displacement and high-torque performance for heavy loads.
• Multi-Point Sequential Electronic Fuel Injection ensures reliable zero-choke starting and exceptional thermal efficiency in maritime conditions.
• A specialized 2.59:1 gear ratio provides aggressive hydrodynamic authority for superior boat control and acceleration.
• The fully-transistorized ignition system provides exact spark timing for flawless performance and a silky-smooth idle.
• A robust 12V 40A alternator delivers essential charging power to support high-draw navigation and safety electronics.
• The 25-inch extra-long shaft ensures maximum propeller depth to prevent cavitation in rolling offshore sea conditions.

Advanced Engine Tech

The FourStroke EFI 115HP engine technology utilizes a 16-valve DOHC design to optimize airflow and combustion. This sophisticated architecture ensures consistent power delivery during high-RPM runs, providing the mechanical dependability required for long-range offshore navigation and heavy displacement boat hulls.

Sequential Fuel Induction

The Multi-Point Sequential Electronic Fuel Injection (EFI) accurately manages fuel induction for immediate throttle response. This advanced system guarantees instant starting and prevents engine stalling, completely eliminating carburetor-related maintenance while ensuring rapid acceleration and optimized fuel economy in the unpredictable American saltwater maritime environment.

Offshore Shaft Authority

The hole-shot performance is maximized by a 25-inch shaft designed for extra-high transoms. Its hydrodynamic profile ensures consistent propeller grip in deep swells, providing the captain with absolute boat control during complex harbor maneuvers and offshore coastal transits in choppy saltwater conditions.

Electronic Charging Authority

Featuring a high-output 40 Amp alternator, this outboard provides consistent charging to keep critical onboard electronics functional. This electrical authority supports high-definition GPS displays and sonar units, ensuring that your primary power source acts as a reliable battery maintainer during extended offshore fishing missions.

Suzuki 115HP Warranty

This Suzuki 115HP is backed by a comprehensive 3-Year Limited Warranty for American boat owners. This factory-level protection covers structural and mechanical defects, ensuring access to genuine replacement parts and certified technicians, reflecting a deep commitment to long-term maritime reliability and owner peace of mind.

High-Transom Vessel Application

This 115HP unit is specifically matched for high-transom fiberglass center consoles and offshore walkarounds. Its high-torque output and extra-long shaft make it perfectly suited for coastal fishing or as a dependable primary power source for large recreational vessels in rolling deep-water environments.

Maintenance & Longevity

Maintaining clean oil in the 5.5L wet sump system is vital for preserving engine tolerances over time. Always flush the cooling passages with fresh water after every saltwater mission to prevent scale buildup and internal corrosion. Pro Tip from the Shop: Regularly inspect the water-detecting fuel filter and verify that the trim and tilt hydraulic fluid is topped off for smooth hydrodynamic operation.