Yamaha 425HP XF425XSB2 XTO – White DES 25in
Description
Yamaha 425HP XF425XSB2 XTO Offshore White 25in
The Yamaha 425HP XF425XSB2 XTO Offshore is a technologically advanced 5.6L V8 featuring a 25-inch shaft in a premium Pearlescent White finish. As a second-generation “B” model, it features refined internals and enhanced reliability for the most demanding offshore applications. The 32-valve DOHC architecture focuses on structural integrity and power-to-weight optimization, utilizing Plasma Fusion cylinder liners to reduce internal friction. The integration of Digital Electric Steering (DES) ensures a clutter-free transom, making it an ideal choice for high-end center console fishing machines.
Focused on superior operational efficiency, the XF425XSB2 utilizes direct fuel injection and a 12.2:1 compression ratio to maximize energy output and fuel economy across the power band. The motor is protected by specialized anodic coatings and Yamaha’s multi-layered anti-corrosion system to combat the rigors of high-salinity marine environments. Ownership is simplified by the on-water gearcase oil change system and a front-mounted freshwater flush port. This model provides an industry-leading 90-amp alternator, ensuring a stable energy supply for multiple navigational displays and modern shipboard accessory loads.
Key Features of Yamaha XF425XSB2
- 5559cc 32-Valve 60-Degree V8.
- 425 Horsepower Prop Shaft Rating.
- 25-Inch Shaft 952 lbs Weight.
- Industry-First Direct Fuel Injection.
- Integrated Digital Electric Steering (DES).
- 90 Amp Total Output Alternator.
- 1.79:1 Ratio Heavy-Duty Gearcase.
Yamaha 425HP XF425XSB2 XTO Specs
| Brand | Yamaha |
| Full Model Code | XF425XSB2 (White Edition) |
| Country of Origin | Japan |
| Engine Family/Series | V8 XTO Offshore |
| Engine Type | V8 60° DOHC 32-Valve 4-Stroke |
| Displacement | 5.6 Liters (5559 cc) |
| Horsepower | 425 HP @ 5500 RPM |
| Full Throttle RPM Range | 5000 - 6000 RPM |
| Fuel Induction System | Direct Injection (S.I.D.I.) |
| Alternator Output | 90 Amps (Phase Angle Control) |
| Gear Ratio | 1.79:1 |
| Shaft Length | X (25") |
| Dry Weight | 442 kg (974 lbs) |
| Bore x Stroke | 96.0 x 96.0 mm |
| Starting & Steering System | Electric w/ Integrated Digital Electronic Steering (DES) |
| Trim/Tilt Method | Power Trim & Tilt |
| Oil Capacity | 7.8L |
| Recommended Fuel | 89 Octane |
| Standard Warranty | 3-Year Limited Pleasure Craft |
| Application | Fiberglass Offshore Fishing Boats and Luxury Multi-Engine Tenders |
You must be logged in to post a review.













Reviews
There are no reviews yet.