Yamaha XF425ESB2 425HP XTO White DES 25″ Outboard Motor
Description
Yamaha 425HP XF425ESB2 XTO Offshore White DES 25in
The Yamaha 425HP XF425ESB2 XTO Offshore represents the pinnacle of V8 marine engineering, featuring a massive 5.6L displacement and a 25-inch shaft in a Pearlescent White finish. This model utilizes the industry’s first four-stroke direct injection system to maximize torque density and thermal efficiency. The architecture features fully integrated Digital Electric Steering (DES), providing the mechanical soul required for demanding offshore hulls and ensuring a clean transom without external hydraulic lines.
Refined for high-speed efficiency, it utilizes a 12.2:1 compression ratio and Plasma Fusion technology on the cylinder walls for reduced friction and increased longevity. Maintenance is simplified by an industry-first gearcase oil change system that can be performed while the boat is on the water. This model features a high-output 90-amp alternator to support complex navigational arrays, gyrostabilizers, and high-demand shipboard luxuries, making it the premier choice for modern flagship offshore vessels.
Key Features of Yamaha XF425ESB2
- 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 XF425ESB2 XTO Specs
| Brand | Yamaha |
| Full Model Code | XF425ESB2 (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 | Luxury Day Boats and High-End Center Consoles (30-40ft) |
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