2027 Yamaha XTO Offshore V8 5.6L XF450USA2

$55,150

Description

Meet the Yamaha XTO Offshore V8 5.6L XF450USA2 in Yamaha White—a standalone, engine-only powerhouse built for serious offshore duty. This is Yamaha’s big-block, 450 bhp (335.8 kW) V8 outboard, designed to deliver the kind of punch that helps larger, heavier hulls feel lively—whether you’re pushing a big center console, a wide-beam dual console, or a hard-working offshore platform that needs real thrust to get on plane and stay there.
With 5.6 liters (5559 cc) of displacement and eight cylinders, this XTO Offshore is all about confident acceleration and strong midrange pull. The DOHC layout with 32 valves (4 per cylinder) supports efficient breathing at speed, and it’s rated to spin up to 6000 RPM (with a full-throttle range of 5000–6000 RPM) for the kind of top-end authority offshore boaters appreciate. Power is delivered through a propeller with a 1.79:1 gear ratio, and the rig is counter-rotating capable—a great fit for twin- or multi-engine setups where handling and tracking matter.
For long days on the water, fuel delivery is fuel injected, and it runs on mid-grade gas. That combination aims to make cruising more efficient and predictable, especially when you’re covering big water and want smooth, consistent response. A robust 102-amp alternator helps keep onboard systems supported while you’re underway.
This outboard is also purpose-built for harsh environments: it’s salt water capable and uses water (open loop) cooling. You’ll also have peace of mind from an onboard visual/audible alert system plus emergency RPM reduction to help protect the engine if something needs attention.
It’s configured with a 25-inch shaft and power trim, set up for remote steering control, and starts with the push of a button thanks to an electric starter. Dry weight is listed at 963 lbs (437 kg).
If you’re looking for a clean, commanding offshore repower in classic Yamaha White, this XTO Offshore V8 delivers big-engine confidence in an outboard package. Warranty coverage varies—contact us for the warranty details available with this new engine.

Color Options

  • Yamaha White Exterior Color: +$0
  • Pricing

  • Warranty (Months): 60
  • Engine

  • Engine Type: V8
  • Cylinders: 8
  • Horsepower: 450 bhp; 335.8 kW
  • Full Throttle RPM Range Low: 5000
  • Full Throttle RPM Range High: 6000
  • Cooling: Water (Open Loop)
  • Bore: 96 mm; 3.78 in
  • Stroke: 96 mm; 3.78 in
  • Displacement: 5559 cc; 341.7 ci
  • Compression Ratio: 12.3:1
  • Shaft Length Min (in): 25
  • Shaft Length Max (in): 25
  • Starter: Electric
  • Alternator Amps: 102
  • Fuel Type: Gas
  • Carburetion Type: Fuel Injected
  • Drive Line

  • Gear Ratio(s): 1.79:1
  • Counter Rotating Capable: Yes
  • Trim System: Standard
  • Trim System Type: Power
  • Steering

  • Outboard Steering Control: Remote
  • Meet the Yamaha XTO Offshore V8 5.6L XF450USA2 in Yamaha White—a standalone, engine-only powerhouse built for serious offshore duty. This is Yamaha’s big-block, 450 bhp (335.8 kW) V8 outboard, designed to deliver the kind of punch that helps larger, heavier hulls feel lively—whether you’re pushing a big center console, a wide-beam dual console, or a hard-working offshore platform that needs real thrust to get on plane and stay there.
    With 5.6 liters (5559 cc) of displacement and eight cylinders, this XTO Offshore is all about confident acceleration and strong midrange pull. The DOHC layout with 32 valves (4 per cylinder) supports efficient breathing at speed, and it’s rated to spin up to 6000 RPM (with a full-throttle range of 5000–6000 RPM) for the kind of top-end authority offshore boaters appreciate. Power is delivered through a propeller with a 1.79:1 gear ratio, and the rig is counter-rotating capable—a great fit for twin- or multi-engine setups where handling and tracking matter.
    For long days on the water, fuel delivery is fuel injected, and it runs on mid-grade gas. That combination aims to make cruising more efficient and predictable, especially when you’re covering big water and want smooth, consistent response. A robust 102-amp alternator helps keep onboard systems supported while you’re underway.
    This outboard is also purpose-built for harsh environments: it’s salt water capable and uses water (open loop) cooling. You’ll also have peace of mind from an onboard visual/audible alert system plus emergency RPM reduction to help protect the engine if something needs attention.
    It’s configured with a 25-inch shaft and power trim, set up for remote steering control, and starts with the push of a button thanks to an electric starter. Dry weight is listed at 963 lbs (437 kg).
    If you’re looking for a clean, commanding offshore repower in classic Yamaha White, this XTO Offshore V8 delivers big-engine confidence in an outboard package. Warranty coverage varies—contact us for the warranty details available with this new engine.

    Color Options

  • Yamaha White Exterior Color: +$0
  • Pricing

  • Warranty (Months): 60
  • Engine

  • Engine Type: V8
  • Cylinders: 8
  • Horsepower: 450 bhp; 335.8 kW
  • Full Throttle RPM Range Low: 5000
  • Full Throttle RPM Range High: 6000
  • Cooling: Water (Open Loop)
  • Bore: 96 mm; 3.78 in
  • Stroke: 96 mm; 3.78 in
  • Displacement: 5559 cc; 341.7 ci
  • Compression Ratio: 12.3:1
  • Shaft Length Min (in): 25
  • Shaft Length Max (in): 25
  • Starter: Electric
  • Alternator Amps: 102
  • Fuel Type: Gas
  • Carburetion Type: Fuel Injected
  • Drive Line

  • Gear Ratio(s): 1.79:1
  • Counter Rotating Capable: Yes
  • Trim System: Standard
  • Trim System Type: Power
  • Steering

  • Outboard Steering Control: Remote
  • Specifications

    ManufacturerYamaha
    ModelXTO Offshore V8 5.6L XF450USA2
    Year2027
    ConditionNew
    Engine TypeV8
    Bore x StrokeBore: 3.78 in. (96 mm); Stroke: 3.78 in. (96 mm)
    Displacement341.7 cu. in. (5559 cc)
    StartingElectric
    Trim MethodPower
    Propshaft Horsepower450 bhp; 335.8 kW
    Fuel InductionFuel Injected
    Alternator102
    CoolingWater (Open Loop)
    SteeringRemote
    Warranty60