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XTO OFFSHORE

Digital: 450 hp, 425 hp

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.

Grey XTO OFFSHORE

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

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).

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

The XTO Offshore® 450 is compatible with a range of controls, gauges and props to suit your preference for performance, control and the display of data. Explore compatible components below and contact your dealer for rigging expertise.

Compatible Controls

Helm Master® EX
Digital Controls
Mechanical Controls-Offshore N / A
Mechanical Controls
Multi-Function Tiller Handle N / A
Multi-Function Tiller Handle

Compatible Gauges

CL5 Touchscreen Display
Digital and Analog 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

The XTO Offshore® 425 is compatible with a range of controls, gauges and props to suit your preference for performance, control and the display of data. Explore compatible components below and contact your dealer for rigging expertise.

Compatible Controls

Helm Master® EX
Digital Controls
Mechanical Controls-Offshore N / A
Mechanical Controls
Multi-Function Tiller Handle N / A
Multi-Function Tiller Handle

Compatible Gauges

CL5 Touchscreen Display
Digital and Analog 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
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Engine:
Bulletin:
Regal LX36
LXF450XSA / XF450XSA
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Bulletin:
Sea Fox 368 Commander
XF450USA2 / LXF450USA2
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Sportsman Open 322
XF450XSA2 / LXF450XSA
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World Cat 400 CC
XF450XSA2 / LXF450XSA2
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Jeanneau Leader 10.5 CC
XF450USA2 / LXF450USA2
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Jeanneau DB/37
XF450USA2 / LXF450USA2
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Sportsman Heritage 261
XF450USA2
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Engine:
Bulletin:
Sportsman Masters 267
XF450XSA2
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Bulletin:
Hurricane SunDeck 2690
XF450XSA2
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Engine:
Bulletin:
Cobia 330 DC
LXF450XSA2 / XF450XSA2
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Boat Model:
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Bulletin:
Cobia 320 CC
LXF450XSA2 / XF450XSA2
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Engine:
Bulletin:
Regulator 26XO
XF450XSA
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Boat Model:
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Regulator 31CC
LXF450XSA2 / XF450XSA2
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Boat Model:
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Regulator 34CC
XF450XSA2 / LXF450XSA2
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Regulator 37CC
XF450XSA2 / XF450ESA2 / LXF450XSA2
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Engine:
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Regulator 41CC with Tower
LXF450XSA2 / XF450ESA2 / LXF450ESA2 / XF450XSA2
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Bulletin:
Kencraft 269 Bayrider
XF450XSA2
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Bulletin:
G3 Amara
XF450XSA
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Bulletin:
Grady White 386 Canyon
LXF450XSA / XF450USA / XF450XSA
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Pursuit OS405
LXF450XSA2 / XF450USA2 / XF450XSA2
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Veranda VX27RCT
XF450XSA
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Bulletin:
Jupiter 40
LXF450XSA2 / XF450ESA2 / XF450XSA2
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Albermarle 31DC
XF425USA2 / LXF425USA2
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Blazer 2700 Hybrid Bay
XF425XSA
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Bennington 25 RCW
XF425XSA2
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Bennington 25 QX Sport
XF425XSA2
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Bennington 25 RXSBA
XF425XSA2
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Bulletin:
Bennington 30 QXFBWA X2
XF425XSA2 / LXF425XSA2
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Bennington 30 QFBWAX2
XF425XSA2 / LXF425XSA2
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Bennington 25 RSBAX1
XF425XSA2
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Bulletin:
Blue Wave 2800 Pure Hybrid
XF425XSA2
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Boat Model:
Engine:
Bulletin:
Caymas 28HB
XF425XSA2
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Engine:
Bulletin:
Caymas 341 CC
XF425XSA2 / LXF425XSA2
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Engine:
Bulletin:
Chris Craft Launch 28 GT
XF425USA2
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Bulletin:
Chris Craft Launch 35 GT
XF425USA / LXF425USA
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Engine:
Bulletin:
Contender 44FA
XF425XSA / XF425ESA / LXF425XSA
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Bulletin:
Cobia 330 DC
XF425XSA / LXF425XSA
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Bulletin:
Cobia 350
XF425XSA2 / LXF425XSA2
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Boat Model:
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Bulletin:
Cobalt R8
XF425USA2
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Boat Model:
Engine:
Bulletin:
Edgewater 340 CC
XF425USA2 / LXF425USA2
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Boat Model:
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Bulletin:
Everglades 435 CC
LXF425XSA2 / XF425USA2 / LXF425USA2 / XF425XSA2
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Boat Model:
Engine:
Bulletin:
Freeman 47T
LXF425USB2 / XF425USB2 / LXF425USB2 / XF425USB2
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Bulletin:
Grady White 281 Coastal Explorer
XF425USB
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Boat Model:
Engine:
Bulletin:
Grady White 330 Express
XF425XSA2 / LXF425XSA2
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Boat Model:
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Bulletin:
Grady White 335 Freedom
XF425XSA2 / LXF425XSA2
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Boat Model:
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Bulletin:
Grady White 336 Canyon
XF425XSA2 / LXF425XSA2
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Boat Model:
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Bulletin:
Grady White 370 Express
XF425XSA / XF425USA / LXF425XSA
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Boat Model:
Engine:
Bulletin:
Grady White 375 Freedom
XF425XSA2 / XF425USA2 / LXF425XSA2
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Bulletin:
Grady White 376 Canyon
XF425XSA2 / XF425USA2 / LXF425XSA2
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Boat Model:
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Bulletin:
Grady White Canyon 456
LXF425XSA / XF425ESA / LXF425ESA / XF425XSA
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Bulletin:
Sport Boat 40X
XF425XSA2 / XF425USA2 / LXF425XSA2
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Bulletin:
Hurricane SunDeck 2690
XF425XSA2
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Bulletin:
Jupiter 38HFS
XF425USA2 / LXF425USA2
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Jupiter 43 SF
LXF425XSA2 / LXF425ESA2 / XF425ESA2 / XF425XSA2
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Bulletin:
Jupiter 43SF
LXF425USA2 / XF425ESA2 / XF425USA2
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MagBay 33
XF425XSA2 / LXF425XSA2
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Bulletin:
North River Offshore Voyager 3500
XF425XSA2 / LXF425XSA2
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Bulletin:
Nautic Star 2602 Legacy
XF425USA2
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Bulletin:
Nautic Star 265XTS
XF425XSA2
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Bulletin:
Nautic Star 32XS
XF425USA2 / LXF425USA2
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Bulletin:
Pathfinder 2700
XF425XSA2
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Engine:
Bulletin:
Pursuit OS445
LXF425USB2 / XF425ESB2 / XF425USB2
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Bulletin:
Pursuit S358
XF425USB2 / LXF425USB2
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Boat Model:
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Bulletin:
Pursuit S378
XF425XSA2 / XF425USA2 / LXF425XSA2
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Bulletin:
Pursuit S 408 Sport
XF425XSA2 / XF425USA2 / LXF425XSA2
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Bulletin:
Pursuit S428 Sport
LXF425XSA2 / LXF425ESA2 / XF425ESA2 / XF425XSA2
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Bulletin:
Scout 330 LXF
XF425USA7 / LXF425USA7
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Boat Model:
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Bulletin:
Scout 380 LXF
LXF425XSA2 / XF425ESA2 / XF425XSA2
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Boat Model:
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Bulletin:
Scout 530 LXF
XF425XSA7 / XF425USA7 / XF425ESA7 / LXF425USA7 / LXFXSA7
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Boat Model:
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Bulletin:
SeaHunter 33 Tournament
XF425USA2 / LXF425USA2
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Boat Model:
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Bulletin:
SeaHunter 39 Tournament
XF425XSA2 / XF425USA2 / LXF425XSA2
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Boat Model:
Engine:
Bulletin:
Shallow Sport 25 X3
XF425XSA
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Engine:
Bulletin:
Sea Hunt Escape 27
XF425USB2
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Bulletin:
Southport 33 FE
XF425XSA2 / LXF425XSA2
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Bulletin:
Sportsman 267 Masters
XF425XSA
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Engine:
Bulletin:
Heritage 251
XF425USA2
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Boat Model:
Engine:
Bulletin:
Sportsman Open 312
XF425XSA2 / LXF425XSA2
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Boat Model:
Engine:
Bulletin:
Sportsman Heritage 261
XF425USB2
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Boat Model:
Engine:
Bulletin:
Sportsman 267 Bay Boat
XF425XSA2
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Boat Model:
Engine:
Bulletin:
Sportsman Open 322
XF425USB2 / LXF425USB2
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Boat Model:
Engine:
Bulletin:
Sportsman Open 322
XF425USB2 / LXF425USB2
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Boat Model:
Engine:
Bulletin:
Sportsman Open 352
XF425USA2 / LXF425USA2
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Bulletin:
Tiara Sport 43 LE
XF425XSA2 / XF425ESA2 / LXF425XSA2
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Bulletin:
43 LS
XF425XSA2 / XF425ESA2 / XF425XSA2
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Engine:
Bulletin:
Tidewater 2700 Carolina Bay
XF425USA2
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Bulletin:
Tidewater 320CC Adventure
XF425XSB2 / LXF425XSB2
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Bulletin:
Valhalla V-37
XF425USA2 / LXF425USA2
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Bulletin:
Valhalla V-41
XF425XSA2 / XF425USA2 / LXF425XSA2
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Engine:
Bulletin:
Veranda VP25RCT
XF425XSA2
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Bulletin:
World Cat 400 CC
XF425XSA2 / LXF425XSA2
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Boat Model:
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Bulletin:
World Cat 40 DC
XF425XSA / LXF425XSA
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Boat Model:
Engine:
Bulletin:
Wellcraft 352 Fisherman
XF425XSA2 / XF425USA2 / LXF425XSA2
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Boat Model:
Engine:
Bulletin:
Wellcraft 402 Fisherman
XF425XSA2 / XF425ESA2 / LFX425ESA2 / LFXF425XSA2
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Engine:
Bulletin:
Contender 39ST
XF425XSA2 / XF425USA2 / LXF425XSA2
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Boat Model:
Engine:
Bulletin:
Veranda V ONE
XF425XSB
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RELIABLE BY

DESIGN

The XTO Offshore’s award-winning Phase Angle Control Charging System creates up to 96 amps of net charging power per outboard at idle. That’s up to 480 with quints. In addition to powering a range of critical onboard tech, it prioritizes charging to the starting batteries, for incredible reliability offshore.

Features & Benefits

DIRECT-INJECTION FOUR STROKE
DIRECT-INJECTION FOUR STROKE

Maximizes power and efficiency by spraying fuel at high pressure directly into the combustion chamber. 

EXCLUSIVE FUEL SYSTEM
EXCLUSIVE FUEL SYSTEM

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.

IN-BANK EXHAUST
IN-BANK EXHAUST

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.

XTO (SDS) PROPELLERS
XTO (SDS) PROPELLERS

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.

IN-WATER GEAR LUBE CHANGE SYSTEM

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.

THRUST-ENHANCING REVERSE EXHAUST

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 RPMs below 2,500.

PUMP STOP POWER TILT LIMIT

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.

DUAL FLUSH SYSTEM

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.

WIDE-SPAN MOUNTING SYSTEM

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.

PHASE ANGLE CONTROL CHARGING

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.

IMPROVED RIGGING TUBE

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

A special carbon coating on shimless, bucket-style valve lifters increases durability and requires less maintenance.