In Stock
This is a game-changer unlike any other. An outboard that effortlessly combines unrivalled power, torque, and speed with cutting-edge technology and performance.

Extreme – Go beyond the next level.

The muscular new shape and dynamic look of the XF425 XTO immediately communicate its incredible industry-first concepts and technologies waiting to be unleashed.

The first direct injection 4-stroke. The first with integral electronic steering, linking seamlessly to Yamaha's Helm Master® system. The first to achieve a new level of reverse thrust, torque, and speed. It's a genuine performance revolution for larger boats and an incredible story. Achieve the ultimate. Discover Extreme.

At a glance

  • Extreme Power - 5.6L • 32-v • 60º V8 • DOHC • VCT
  • Efficiency - first-ever Direct Injection 4-stroke
  • Precision - built-in electric steer-by-wire system
  • Ultimate control - unique all-electronic systems
  • 300% more reverse thrust from new exhaust system
  • Reliability - tough custom-engineered crankshaft
  • Dependability - new heavy duty gear system
  • New sleek lower unit design with massive gearcase
  • Dual chamber oil pump to handle extreme demands
  • Ultra-convenient in-water gear oil change facility
  • High Output charging - for more output at low rpm
  • Ideal for heavy boats and RIBs - XTO OS propellers

 

Technical Specifications

Engine

Engine type
4-stroke
Displacement
5559 cc
No. of cylinders/Configuration
60°-V8, 32-valve, DOHC with VCT
Bore x stroke
96.0 x 96.0
Prop shaft output at mid range
316.9kW / 5,500 rpm
Full Throttle Operating Range
5,000 - 6,000 rpm
Lubrication system
Direct Fuel Injection
Ignition / advance system
TCI
Starter system
Electric
Gear ratio
1.79 (25:14)

 

Dimensions

Transom height
X:640mm U:767mm E:894mm
Oil pan capacity
7.8 litres
Weight without propeller
442 – 463 kg

 

Additional Features

Control
Drive By Wire (DBW)
Trim & Tilt method
Power Trim & Tilt
Light coil / Alternator Output
12V - 90A with rectifier/regulator
Propeller
Optional
Counter Rotation Model
Available on X, U and E
Shallow Water Drive
Standard
Tilt limitter
Standard
Digital Network Gauge II (CL7)
Optional
Shift Dampener System (SDS)
Optional
Full tilt up angle
77°
Remark
The kW data in this sheet is based on the ICOMIA 28 standard, measured at the prop shaft