Yamaha / XTO Offshore
Yamaha XF450
The XTO Offshore® 450 packs everything boaters love about the original XTO outboard—the durability, power and reliability—plus extra horses.
All Yamaha outboards
XTO Offshore
XF450
- Power
- 450 hp
- Configuration
- V8 / DOHC / 32 valves / 4 Valves per Cylinder
- Displacement
- 5.6L
- Weight
- 437 kg (963 lbs) / 448 kg (988 lbs) / 458 kg (1010 lbs)
Authorizeddealer
View on Yamaha site dealerAbout this engine
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.
Key features
- DIRECT-INJECTION FOUR STROKE
- EXCLUSIVE FUEL SYSTEM
- IN-BANK EXHAUST
- XTO (SDS) PROPELLERS
- IN-WATER GEAR LUBE CHANGE SYSTEM
- THRUST-ENHANCING REVERSE EXHAUST
- PUMP STOP POWER TILT LIMIT
- DUAL FLUSH SYSTEM
- WIDE-SPAN MOUNTING SYSTEM
- PHASE ANGLE CONTROL CHARGING
- IMPROVED RIGGING TUBE
- DIGITAL ELECTRIC STEERING
- HELM MASTER® EX
Full 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
