XTO OFFSHORE
Miles from shore. No land in sight. Nothing on your mind but the adventure ahead and the formidable offshore gamefish that await. That’s the beauty of having a reliable Yamaha 5.6L V8 XTO Offshore® behind you. Purpose-built for the rigors of the offshore, the XTO gives you extreme control, precision, and durability—and now up to 450 horses. Go further and with more confidence than ever before—the Yamaha XTO Offshore F450 and F425.
Meet the Lineup
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 outstanding 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.
- Award-winning Phase Angle Control Charging System
- Available in signature Yamaha gray or new pearlescent white
- 450 hp on less-expensive 89-octane gasoline
- Impressive 5-year Limited Warranty, for pleasure use
425 HP
The XTO Offshore® 425 is the result of years of collaboration with top boat designers and has been built from the ground up to provide the ultimate in power and efficiency offshore. With impressive stats such as 12.2:1 compression ratio for impressive fuel economy and power, industry firsts such as an electric steering system and engineering touches such as iridium spark plugs and quad thermostats, it’s purpose-built for extreme power, durability, control and reliability.
- Phase Angle Control Charging System an award-winning industry first
- Available in signature Yamaha gray or new pearlescent white
- 425 hp on less-expensive 89-octane gasoline
- Impressive 5-year Limited Warranty, for pleasure use
450 HP
Engine Comparison
| 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 |
† Weight refers to shortest shaft length, and is measured without motor oil, gearcase oil and propeller (except models 25 hp and under, which include a standard propeller). All Jet model weights include the jet pump assembly (weight estimated).
425 HP
Engine Comparison
| Weight † | 432 kg (952 lbs) / 443 kg (977 lbs) / 453 kg (999 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 | 425hp at 5500 RPM |
| Alternator Output at W.O.T. | 100 Amp Gross, Max |
| Compression Ratio | 12.2:1 |
| 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 |
| 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 |
† Weight refers to shortest shaft length, and is measured without motor oil, gearcase oil and propeller (except models 25 hp and under, which include a standard propeller). All Jet model weights include the jet pump assembly (weight estimated).
450 HP
Compatible Controls
Compatible Gauges
Prop Selector
Enter your details. Find the right prop. Easily zero-in on the best propeller options based on your type of craft, horsepower and performance goals with this smart, online tool.
visit yamaha prop selector
425 HP
Compatible Controls
Compatible Gauges
Prop Selector
Enter your details. Find the right prop. Easily zero-in on the best propeller options based on your type of craft, horsepower and performance goals with this smart, online tool.
visit yamaha prop selector
| Boat Model: Engine: Bulletin: |
Bennington 30QXSBWAX2 XF450XSA2 / LXF450XSA2 View |
|---|---|
| Boat Model: Engine: Bulletin: |
Regal LX36 LXF450XSA / XF450XSA View |
| Boat Model: Engine: Bulletin: |
Sea Fox 368 Commander XF450USA2 / LXF450USA2 View |
| Boat Model: Engine: Bulletin: |
Sportsman Open 322 XF450XSA2 / LXF450XSA View |
| Boat Model: Engine: Bulletin: |
World Cat 400 CC XF450XSA2 / LXF450XSA2 View |
| Boat Model: Engine: Bulletin: |
Jeanneau Leader 10.5 CC XF450USA2 / LXF450USA2 View |
| Boat Model: Engine: Bulletin: |
Jeanneau DB/37 XF450USA2 / LXF450USA2 View |
| Boat Model: Engine: Bulletin: |
Sportsman Heritage 261 XF450USA2 View |
| Boat Model: Engine: Bulletin: |
Sportsman Masters 267 XF450XSA2 View |
| Boat Model: Engine: Bulletin: |
Hurricane SunDeck 2690 XF450XSA2 View |
| Boat Model: Engine: Bulletin: |
Cobia 330 DC LXF450XSA2 / XF450XSA2 View |
| Boat Model: Engine: Bulletin: |
Cobia 320 CC LXF450XSA2 / XF450XSA2 View |
| Boat Model: Engine: Bulletin: |
Regulator 26XO XF450XSA View |
| Boat Model: Engine: Bulletin: |
Regulator 31CC LXF450XSA2 / XF450XSA2 View |
| Boat Model: Engine: Bulletin: |
Regulator 34CC XF450XSA2 / LXF450XSA2 View |
| Boat Model: Engine: Bulletin: |
Regulator 37CC XF450XSA2 / XF450ESA2 / LXF450XSA2 View |
| Boat Model: Engine: Bulletin: |
Regulator 41CC with Tower LXF450XSA2 / XF450ESA2 / LXF450ESA2 / XF450XSA2 View |
| Boat Model: Engine: Bulletin: |
G3 Amara XF450XSA View |
| Boat Model: Engine: Bulletin: |
Grady White 386 Canyon LXF450XSA / XF450USA / XF450XSA View |
| Boat Model: Engine: Bulletin: |
Pursuit OS405 LXF450XSA2 / XF450USA2 / XF450XSA2 View |
| Boat Model: Engine: Bulletin: |
Veranda VX27RCT XF450XSA View |
| Boat Model: Engine: Bulletin: |
Jupiter 40 LXF450XSA2 / XF450ESA2 / XF450XSA2 View |
| Boat Model: Engine: Bulletin: |
Southport 38 FE LXF450USA2 / XF450ESA2 / XF450USA2 View |
| Boat Model: Engine: Bulletin: |
Bay Rider 269 XF450XSA2 View |
| Boat Model: Engine: Bulletin: |
Pursuit OS355 LXF450XSA2 / XF450XSA2 View |
| Boat Model: Engine: Bulletin: |
Caymas 34CT LXF450USA2 / XF450USA2 View |
| Boat Model: Engine: Bulletin: |
Scout 330 LXF XF450USA4 / LXF450USA4 View |
| Boat Model: Engine: Bulletin: |
Valhalla V-28 Bay XF450USA2 View |
| Boat Model: Engine: Bulletin: |
Grady White 345 Freedom LXF450XSA4 / XF450XSA4 View |
| Boat Model: Engine: Bulletin: |
SeaHunter 45 VTS LXF450XSA / LXF450USA / XF450USA / XF450XSA View |
| Boat Model: Engine: Bulletin: |
Scout 357 LXF LXF450USA4 / XF450USA4 View |
| Boat Model: Engine: Bulletin: |
Valhalla V-41 LXF450XSA2 / XF450USA2 / XF450XSA2 View |
| Boat Model: Engine: Bulletin: |
Viaggio Diamante 26UWA XF450XSA View |
| Boat Model: Engine: Bulletin: |
Grady White 415 Freedom LXF450XSA4 / XF450ESA4 / LXF450ESA4 / XF450XSA4 View |
| Boat Model: Engine: Bulletin: |
Sportsman Heritage 321 XF450USA2 / LXF450USA2 View |
| Boat Model: Engine: Bulletin: |
Albemarle 31DC XF425USA2 / LXF425USA2 View |
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| Boat Model: Engine: Bulletin: |
Blazer 2700 Hybrid Bay XF425XSA View |
| Boat Model: Engine: Bulletin: |
Bennington 25 RCW XF425XSA2 View |
| Boat Model: Engine: Bulletin: |
Bennington 25 QX Sport XF425XSA2 View |
| Boat Model: Engine: Bulletin: |
Bennington 25 RXSBA XF425XSA2 View |
| Boat Model: Engine: Bulletin: |
Bennington 30 QXFBWA X2 XF425XSA2 / LXF425XSA2 View |
| Boat Model: Engine: Bulletin: |
Bennington 30 QFBWAX2 XF425XSA2 / LXF425XSA2 View |
| Boat Model: Engine: Bulletin: |
Bennington 25 RSBAX1 XF425XSA2 View |
| Boat Model: Engine: Bulletin: |
Blue Wave 2800 Pure Hybrid XF425XSA2 View |
| Boat Model: Engine: Bulletin: |
Caymas 28HB XF425XSA2 View |
| Boat Model: Engine: Bulletin: |
Caymas 341 CC XF425XSA2 / LXF425XSA2 View |
| Boat Model: Engine: Bulletin: |
Chris Craft Launch 28 GT XF425USA2 View |
| Boat Model: Engine: Bulletin: |
Chris Craft Launch 35 GT XF425USA / LXF425USA View |
| Boat Model: Engine: Bulletin: |
Contender 44FA XF425XSA / XF425ESA / LXF425XSA View |
| Boat Model: Engine: Bulletin: |
Cobia 330 DC XF425XSA / LXF425XSA View |
| Boat Model: Engine: Bulletin: |
Cobia 350 XF425XSA2 / LXF425XSA2 View |
| Boat Model: Engine: Bulletin: |
Cobalt R8 XF425USA2 View |
| Boat Model: Engine: Bulletin: |
Edgewater 340 CC XF425USA2 / LXF425USA2 View |
| Boat Model: Engine: Bulletin: |
Everglades 435 CC LXF425XSA2 / XF425USA2 / LXF425USA2 / XF425XSA2 View |
| Boat Model: Engine: Bulletin: |
Freeman 47T LXF425USB2 / XF425USB2 / LXF425USB2 / XF425USB2 View |
| Boat Model: Engine: Bulletin: |
Grady White 281 Coastal Explorer XF425USB View |
| Boat Model: Engine: Bulletin: |
Grady White 330 Express XF425XSA2 / LXF425XSA2 View |
| Boat Model: Engine: Bulletin: |
Grady White 335 Freedom XF425XSA2 / LXF425XSA2 View |
| Boat Model: Engine: Bulletin: |
Grady White 336 Canyon XF425XSA2 / LXF425XSA2 View |
| Boat Model: Engine: Bulletin: |
Grady White 370 Express XF425XSA / XF425USA / LXF425XSA View |
| Boat Model: Engine: Bulletin: |
Grady White 375 Freedom XF425XSA2 / XF425USA2 / LXF425XSA2 View |
| Boat Model: Engine: Bulletin: |
Grady White Canyon 456 LXF425XSA / XF425ESA / LXF425ESA / XF425XSA View |
| Boat Model: Engine: Bulletin: |
Sport Boat 40X XF425XSA2 / XF425USA2 / LXF425XSA2 View |
| Boat Model: Engine: Bulletin: |
Hurricane SunDeck 2690 XF425XSA2 View |
| Boat Model: Engine: Bulletin: |
Jupiter 38HFS XF425USA2 / LXF425USA2 View |
| Boat Model: Engine: Bulletin: |
Jupiter 43 SF LXF425XSA2 / LXF425ESA2 / XF425ESA2 / XF425XSA2 View |
| Boat Model: Engine: Bulletin: |
Jupiter 43SF LXF425USA2 / XF425ESA2 / XF425USA2 View |
| Boat Model: Engine: Bulletin: |
MagBay 33 XF425XSA2 / LXF425XSA2 View |
| Boat Model: Engine: Bulletin: |
North River Offshore Voyager 3500 XF425XSA2 / LXF425XSA2 View |
| Boat Model: Engine: Bulletin: |
Nautic Star 2602 Legacy XF425USA2 View |
| Boat Model: Engine: Bulletin: |
Nautic Star 265XTS XF425XSA2 View |
| Boat Model: Engine: Bulletin: |
Nautic Star 32XS XF425USA2 / LXF425USA2 View |
| Boat Model: Engine: Bulletin: |
Pathfinder 2700 XF425XSA2 View |
| Boat Model: Engine: Bulletin: |
Scout 330 LXF XF425USA7 / LXF425USA7 View |
| Boat Model: Engine: Bulletin: |
Scout 380 LXF LXF425XSA2 / XF425ESA2 / XF425XSA2 View |
| Boat Model: Engine: Bulletin: |
Scout 530 LXF XF425XSA7 / XF425USA7 / XF425ESA7 / LXF425USA7 / LXF425XSA7 View |
| Boat Model: Engine: Bulletin: |
SeaHunter 33 Tournament XF425USA2 / LXF425USA2 View |
| Boat Model: Engine: Bulletin: |
SeaHunter 39 Tournament XF425XSA2 / XF425USA2 / LXF425XSA2 View |
| Boat Model: Engine: Bulletin: |
Shallow Sport 25 X3 XF425XSA View |
| Boat Model: Engine: Bulletin: |
Sea Hunt Escape 27 XF425USB2 View |
| Boat Model: Engine: Bulletin: |
Southport 33 FE XF425XSA2 / LXF425XSA2 View |
| Boat Model: Engine: Bulletin: |
Sportsman 267 Masters XF425XSA View |
| Boat Model: Engine: Bulletin: |
Heritage 251 XF425USA2 View |
| Boat Model: Engine: Bulletin: |
Sportsman Open 312 XF425XSA2 / LXF425XSA2 View |
| Boat Model: Engine: Bulletin: |
Sportsman Heritage 261 XF425USB2 View |
| Boat Model: Engine: Bulletin: |
Sportsman 267 Bay Boat XF425XSA2 View |
| Boat Model: Engine: Bulletin: |
Sportsman Open 322 XF425USB2 / LXF425USB2 View |
| Boat Model: Engine: Bulletin: |
Sportsman Open 322 XF425USB2 / LXF425USB2 View |
| Boat Model: Engine: Bulletin: |
Sportsman Open 352 XF425USA2 / LXF425USA2 View |
| Boat Model: Engine: Bulletin: |
Tidewater 2700 Carolina Bay XF425USA2 View |
| Boat Model: Engine: Bulletin: |
Tidewater 320CC Adventure XF425XSB2 / LXF425XSB2 View |
| Boat Model: Engine: Bulletin: |
Valhalla V-37 XF425USA2 / LXF425USA2 View |
| Boat Model: Engine: Bulletin: |
Veranda VP25RCT XF425XSA2 View |
| Boat Model: Engine: Bulletin: |
World Cat 400 CC XF425XSA2 / LXF425XSA2 View |
| Boat Model: Engine: Bulletin: |
World Cat 40 DC XF425XSA / LXF425XSA View |
| Boat Model: Engine: Bulletin: |
Wellcraft 352 Fisherman XF425XSA2 / XF425USA2 / LXF425XSA2 View |
| Boat Model: Engine: Bulletin: |
Wellcraft 402 Fisherman XF425XSA2 / XF425ESA2 / LFX425ESA2 / LFXF425XSA2 View |
| Boat Model: Engine: Bulletin: |
Contender 39ST XF425XSA2 / XF425USA2 / LXF425XSA2 View |
| Boat Model: Engine: Bulletin: |
Veranda V ONE XF425XSB View |
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<p>HARNESS THE POWER WITH HELM MASTER<sup>®</sup> EX</p>
The 5.6L V8 XTO Offshore XF 450 and XF425 are compatible with Yamaha's groundbreaking Helm Master EX boat control system. It provides full joystick maneuverability for one to five engines; new wireless control for on-boat flexibility; automated functions for fishing, navigation, and relaxing; and the list goes on. You're about to love the water even more.
Learn More
Features & Benefits
Maximizes power and efficiency by spraying fuel at high pressure directly into the combustion chamber.
A three-stage low-medium-high pressure fuel pump system works, in part, due to two independent, RPM-activated fuel pumps in the Vapor Separator Tank. This unique five-pump system creates an unprecedented fuel injection pressure of up to 2900 PSI to further maximize atomization and efficiency.
Intake tracks enter the cylinder head from the outside of the powerhead. This gives exhaust gases room for a direct route to the lower unit and out through the propeller hub, streamlining the powerhead and improving flow.
With diameters from 16 to 17 1/8 inches, 15 to 27-inch pitches and increased blade surface, XTO propellers complement the torque potential of our V8 XTO Offshore. They also contribute to greater overall thrust.
For the ultimate convenience, a technician can drain and replace your outboard’s lower-unit lubricant without having to remove your boat from the water.
For more control at lower speeds and increased precision of our Helm Master® EX boat control system, exhaust is diverted away from the propeller at RPM below 2,500.
The tilt pump shuts off when it reaches maximum tilt setting, rather than continuing to run, saving power and reducing noise at full trim in/out.
A unique design offers two methods for flushing the XTO, either through a built-in flushing system hose routed through the rigging tube/grommet or through conventional front-mounted direct-hose hook-up.
For minimized vibration and a more compact design, incredibly strong upper motor mounts placed wide on the exterior of the upper mid-section work in conjunction with our Long Span Mounting System.
The XTO’s Phase Angle Control Charging System meets the extreme electrical needs of today’s larger boats. This Innovation Award-winning system produces up to 96 amps of net charging power at idle—from a single outboard—and up to 480 net amps in a quint configuration. That’s up to 65 percent more maximum net charge at idle than previous XTO Offshore models.
A redesigned rigging tube provides an extra 3.25 inches of clearance at the motor well when tilted up and is compatible with most flat-transom installations.
The XTO responds quicker to steering inputs because it contains a digital electric steering motor, which directly receives signals from the electric helm to the integrated steering control unit.
Helm Master EX now features more than 10 automated modes, including new DriftPoint® Track, which helps to automate the drifting of an uneven shoreline; new Autopilot with Heading and Course Hold; the expanded ability to control up to five outboards, and more.
RELIABILITY & DURABILITY
Carbon-Coated Lifters
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