Yamaha XTO 425hp V8


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Extreme – Go beyond the next level.

The muscular new shape and dynamic look of the XTO 425hp V8 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 – 5.6 L • 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

Additional information