Name: Yamaha 450hp XTO Offshore Outboard XF450USA
Brand: Yamaha
SKU: NM898348573
Price: 31371.00 USD
Availability: InStock

Description

Overview Yamaha 450hp XTO Offshore Outboard XF450USA

The Yamaha 450hp XTO Offshore Outboard XF450USA is designed as a complete offshore power system rather than a conventional outboard. Built through years of collaboration with elite boat manufacturers, this engine combines a massive 5.6-liter V8, direct-injection four-stroke technology, and all-electric steering to deliver exceptional power, control, and efficiency.

With its extended 30-inch XX-long shaft, the XF450USA is ideal for large offshore center consoles, sportfishing boats, and multi-engine installations that demand confidence in open water.

Features and Performance

5.6L V8 Four-Stroke Engine – Extreme offshore horsepower with proven durability
Direct Fuel Injection (up to 2900 PSI) – Precise fuel delivery for instant throttle response
Integrated Electric Power Steering – Smooth, responsive handling with reduced maintenance
Phase Angle Control Charging System – Up to 96 amps net charging at idle from a single engine
Thrust-Enhancing Reverse Exhaust – Improved low-speed maneuverability and docking control
12.2:1 Compression Ratio – Optimized balance of power and fuel efficiency
Wide-Span & Long-Span Mounting Systems – Reduced vibration and compact installation
Pump Stop Power Tilt Limit – Quiet, efficient operation at full trim
Iridium Spark Plugs & Quad Thermostats – Enhanced reliability under extreme offshore loads
Helm Master® EX Compatibility – Advanced joystick control and precision handling

Why You Should Buy it

The Yamaha XF450USA is built for offshore boaters who require maximum power, extended shaft capability, and advanced technology. Its V8 direct-injection engine, electric steering, and exceptional electrical output make it the ideal choice for large offshore vessels running sophisticated electronics and multi-engine configurations.

Specifications

Specification	Details
Engine Type	Yamaha XF450USA XTO Offshore Four Stroke
Horsepower	450 hp
Cylinders	8 (V8)
Displacement	5.6 L
Fuel System	Direct Injection (up to 2900 PSI)
Shaft Length	30" (XX-Long)
Throttle / Shift	Digital Electronic Controls
Steering	Integrated Electric Power Steering
Starter	Electric
Weight	988 lbs
Alternator Output	102 Amp
Full Throttle RPM Range	5000 – 6000 rpm
Degree of Trim	-4° to +16°
Degree of Tilt	-4° to +73°
Warranty	Yamaha 3-Year Warranty
Standard Features	Power Trim & Tilt, Owner’s Manual

What’s Included

Yamaha 450hp XTO Offshore Outboard XF450USA
Power Trim & Tilt
Owner’s Manual

FAQ

Frequently Asked Questions About Yamaha 450hp XTO Offshore Outboard XF450USA

What do the digital control features change on Yamaha 450hp XTO Offshore Outboard XF450USA?

The control specification on Yamaha 450hp XTO Offshore Outboard XF450USA is one of its defining details: Digital Electronic Controls, Integrated Electric Power Steering, and a 30" (XX-Long) shaft are all part of the listed configuration. That tells buyers this engine is arranged for a more integrated helm setup than a portable tiller model.

What does the alternator output mean on this motor?

A listed alternator output of 102 Amp is a major part of this engine’s overall profile. On a larger offshore-style motor, that figure matters because it speaks to the electrical support available while running more demanding onboard systems.

How important is the shaft length on this outboard?

A 30" (XX-Long) shaft is one of the most important setup details on this offshore engine. In the product copy, that length is tied directly to offshore-style hulls and taller transoms, so it helps buyers confirm the intended boat configuration at a glance.

What engine setup does this outboard use?

This offshore engine is built around a 5.6 L V8 four-stroke engine with Direct Injection (up to 2900 PSI), and the fuel system is listed as direct injection up to 2900 PSI. Those figures show this is a serious offshore powerhead designed for high-output use rather than a simple midrange motor.

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