Yamaha XF425ESB 425HP XTO V8 DES 25″ Outboard Motor

Yamaha 425HP XF425ESB XTO Offshore V8 25in

The Yamaha 425HP XF425ESB XTO Offshore is a robust 5.6L V8 engine featuring a 25-inch shaft, designed to push the boundaries of large-scale outboard power. Utilizing a 60-degree block and quad-cam DOHC architecture, this model delivers massive torque density tuned for heavy offshore hulls. Its mechanical soul is defined by the integration of Digital Electric Steering (DES) and an oversized gearcase designed to swing large-diameter propellers, ensuring every bit of power is efficiently translated into thrust.

The XF425ESB utilizes high-pressure direct injection (up to 2900 psi) to optimize the air-fuel mixture for immediate throttle response and superior fuel economy at cruising speeds. The engine is protected by multi-stage anodic protection to prevent galvanic oxidation in high-salinity environments. This model provides an industry-leading 90-amp alternator, supporting the most advanced navigational electronics, sound systems, and shipboard accessory loads required for modern premium boating experiences.

Key Features of Yamaha XF425ESB

• 5559cc 32-Valve 60-Degree V8.
• 425 Horsepower Prop Shaft Rating.
• 25-Inch Shaft 952 lbs Weight.
• Direct Fuel Injection (DFI) System.
• Integrated Digital Electric Steering (DES).
• 90 Amp Total Output Alternator.
• 1.79:1 Ratio Heavy-Duty Gearcase.