V8 5.6L 450 hp

The XTO Offshore® 450 packs everything boaters love about the original XTO outboard—the durability, power and reliability—plus extra horses. With impressive stats such as 12.3:1 compression ratio for impressive fuel economy and power and industry-first features such as an integrated electric steering system and Phase Angle Control Charging, it’s purpose-built for the extremes of going offshore.

SKU: xto-450-hp Category:


  • Award-winning Phase Angle Control Charging System*
  • Available in signature Yamaha gray or new pearlescent white
  • 450 hp on less-expensive 89-octane gasoline
  • Compatible with Helm Master® EX
  • Impressive 5-year Limited Warranty, for pleasure use
Engine TypeV8 / DOHC / 32 valves / 4 Valves per Cylinder
Bore x Stroke96 x 96 mm (3.78 x 3.78 in)
Prop Shaft Horsepower450hp at 6000 RPM
Full Throttle RPM Range5000 - 6000 RPM
Alternator Output at W.O.T.102 Amp Gross, Max (up to 96 NET at idle)


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