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2023 Yamaha F2.5SMHB 15" Shaft Outboard Motor
2023 Yamaha F2.5SMHB 15" Shaft Outboard Motor $960.00
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Yamaha XTO Offshore 425 HP Outboard Motor
Yamaha XTO Offshore 425 HP Outboard Motor $40,480.00

Yamaha 5.6L V8 XTO 450 Offshore

$48,400.00

The Yamaha XTO Offshore 450 delivers heavy-duty power and durability designed specifically for demanding offshore environments. Featuring an impressive 12.3:1 compression ratio, it maximizes fuel efficiency and raw power while running efficiently on cost-effective 89-octane gas. Equipped with industry-first integrated electric steering and an advanced Phase Angle Control Charging system, it provides unmatched control and electrical output on the water. Available in classic Yamaha gray or a striking pearlescent white finish, and backed by a 5-year limited pleasure-use warranty.

Key Benefits

  • Unleash 450 horsepower built for the extremes of deep-sea boating, fueled by standard 89-octane gas for everyday economy.

  • Experience cutting-edge handling and battery charging with integrated electric steering and Phase Angle Control.

  • Protected by an impressive 5-year limited warranty for recreational use and offered in signature gray or pearlescent white.

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Description

SPECIFICATIONS

Weight † 437 kg (963 lbs) / 448 kg (988 lbs) / 458 kg (1010 lbs)
Full Throttle RPM Range 5000 – 6000 RPM
Fuel Induction System Direct Injection / Up to 2900 PSI
Recommended Engine Oil Yamalube® 4M (See owner’s manual)
Engine Type V8 / DOHC / 32 valves / 4 Valves per Cylinder
Displacement 5.6L
Bore x Stroke 96 x 96 mm (3.78 x 3.78 in)
Prop Shaft Horsepower 450hp at 6000 RPM
Alternator Output at W.O.T. 102 Amp Gross, Max (up to 96 NET at idle)
Compression Ratio 12.3:1
Recommended Fuel Octane 89
Recommended Fuel Filtration Yamaha 10-Micron Fuel / Water Separating Filter (external)
C.A.R.B. Rating 3-Star
Exhaust Through Propeller (Except in Reverse Under 2500 RPM)
Intake 32-valve
Ignition TCI Microcomputer
Spark Plug ILMAR7E-9 / Iridium
Starting System Electric w/ PTT
Lubrication Wet Sump
Engine Oil Capacity 7.8L / 8.2 Quarts | 7.5L / 7.9 Quarts
Recommended Cooling Thermostatic Control
Ethanol Blend Limit 10% Maximum
Gear Ratio (25/14) 1.79
Gear Shift Forward, Neutral, Reverse
Shaft Length 25″ – 30″ – 35″
Degree of Tilt -4° through +73°
Degree of Trim -4° through +16°
Mounting Centers 28.5″
Steering Integrated, Electric Actuation
Steering Angle (maximum) 31° from center, either direction
Warranty Limited 5-Year Pleasure, 3-Year Government, 1-Year Commercial
Shipping & Delivery
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Shipping & Delivery

We pride ourselves on offering fast and reliable shipping directly from our warehouse. Most in-stock outboard engines ship within 1–3 business days, ensuring you get your new engine as quickly as possible. Nationwide delivery is available across the U.S., with all engines carefully packaged to prevent damage during transit.

For local customers, we offer the convenience of pickup from our warehouse or local delivery. Our team is happy to assist with loading, and if you need installation or rigging support, we can help with that too.

If you're ordering from outside the U.S., we also offer international shipping. Contact us directly for a customized shipping quote, including rates, timelines, and any additional import details to ensure a smooth delivery to your location.