Suzuki DF115B 115HP FourStroke EFI

The Suzuki DF115B is a high-performance FourStroke EFI 115HP outboard specifically engineered for superior authority in the North American maritime sector. Boasting a robust 2045cc inline four-cylinder DOHC powerhead and weighing 423 lbs, this unit offers an power-to-weight ratio for optimal heavy-load performance. This 25-inch extra-long shaft model is perfectly matched for offshore walkarounds and large bay boats requiring dependable outboard propulsion systems with offshore propeller reach and rugged saltwater durability for long-range expeditions.

Peak operational performance for the Suzuki 115HP occurs between 5000 and 6000 RPM, ensuring consistent thrust delivery during high-speed transits. The strong 2.59:1 gear ratio facilitates the mechanical translation of the torque curve into rapid hole-shot capability and efficient hull planing. This engine exemplifies Japanese engineering reliability for offshore salt-water use, maintaining high thermal efficiency while resisting the corrosive effects of harsh environments during professional maritime operations.

Technical Specifications of Suzuki DF115B

- The 2045cc inline four-cylinder DOHC 16-valve powerhead delivers displacement and high-torque performance for loads.
- Suzuki Lean Burn Multi-Point EFI helps support reliable zero-choke starting and thermal efficiency in maritime conditions.
- A specialized 2.59:1 gear ratio provides strong 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 helps support maximum propeller depth to prevent cavitation in rolling offshore sea conditions.

Next-Generation Engine Tech

The FourStroke EFI 115HP engine technology utilizes a dual overhead cam design to maximize intake efficiency. This sophisticated architecture helps support consistent power delivery across the RPM band, providing the mechanical integrity needed for heavy-duty coastal transit in various marine offshore environments during long operational shifts.

Precise Fuel Induction

The Suzuki Lean Burn Multi-Point EFI system monitors atmospheric conditions for the appropriate fuel induction ratio. This technology is designed to support instant starting and prevents engine bogging, completely eliminating carburetor-related maintenance while ensuring rapid acceleration and clean combustion for professional long-range trips in unpredictable coastal waters.

Hydrodynamic Shaft Authority

This unit’s hole-shot performance is stabilized by a 25-inch shaft designed for versatile high-transom heights. Its hydrodynamic profile helps support consistent propeller grip in rolling ocean swells, providing the captain with boat control during complex harbor maneuvers and high-speed offshore coastal transits in North American waters.

Integrated 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 fishfinders and navigation displays, ensuring that your primary power source acts as a reliable battery maintainer during extended offshore fishing missions and transits.

Suzuki 115HP Warranty

Every 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 professional technical support throughout the US.

Offshore Vessel Match

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 tournament fishing or as a dependable primary power source for large recreational vessels navigating rolling deep-water maritime environments safely.

Maintenance & Longevity

Routine oil changes for the 5.5-liter wet sump system are essential for preserving tight engine tolerances in saltwater. Freshwater flushing after every excursion prevents internal salt deposits and maintains the cooling system’s long-term health.Maintenance note: Follow the manufacturer’s service procedures and lubrication specifications for the engine and gearcase.