Yamaha XTO Offshore V8 · Virginia Beach
Yamaha XF450 outboard: specs, rigging and repower in Virginia Beach.
The XF450 is the top rating of Yamaha's XTO Offshore V8: 5.6 liters, direct injection, and 450 hp at 6000 RPM on 89-octane fuel. Its charging system delivers up to 96 net amps at idle per engine, and it rigs only with digital controls or Helm Master EX. Yamaha lists 25, 30 and 35-inch shafts.
- Horsepower
- 450 hp
- Engine type
- V8 / DOHC / 32 valves / 4 Valves per Cylinder
- Displacement
- 5.6L
- Shaft length
- 25" - 30" - 35"
- Weight †
- 437 kg (963 lbs) / 448 kg (988 lbs) / 458 kg (1010 lbs)
Specifications
Yamaha XF450
specs, as Yamaha lists them.
Specs and features: Yamaha, read from yamahaoutboards.com and Yamaha's Engine Comparison tool on 2026-10-05. Yamaha can change a model by model year; we confirm the exact engine when we quote.
| 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 |
| Variable Trolling RPM Range | 600 - 1000 |
† 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).
Compared
How the XF450 compares
with the XF425.
From Yamaha's spec tables; weights are the lightest Yamaha lists, valvetrain is from its dealer spec signs.
Same family
XF450 vs XF425
- Rated output: XF450 450hp at 6000 RPM; XF425 425hp at 5500 RPM.
- Weight: XF450 11 lb heavier at the lightest weight Yamaha lists (963 lb vs 952 lb).
- Alternator: XF450 102 Amp Gross, Max (up to 96 NET at idle); XF425 100 Amp Gross, Max.
Same on both: 5.6L displacement, (25/14) 1.79 gear ratio, 25, 30 and 35-inch shaft, 89 octane, 28.5-inch mounting centers.
Rigging
Controls, gauges
and Helm Master EX.
Controls
- Helm Master® EX (compatible)
- Digital Controls (compatible)
- Mechanical Controls (not available)
- Multi-Function Tiller Handle (not available)
Gauges
- CL5 Touchscreen Display (compatible)
- Digital and Analog Gauges (compatible)
Yamaha lists Helm Master EX as compatible with the XF450. We fit Helm Master EX upgrades and confirm what a given boat can take before we quote it.
Propellers Yamaha names for the XF450
- Yamaha XTO ECFor specific XTO Offshore applications where ventilation is a problem.
- Yamaha XTO OSMatched to V8 XTO Offshore torque on boats over 50 feet.
Yamalube oil change kit
- XTO Oil Change KitYamaha's row: Model 5.6L XF450 · PROD. YEAR '18~ · 05W-30 KIT LUB-MRNXT-KT-05 · 10W-30 KIT LUB-MRNXT-KT-10 · 20W-40 KIT NA
XF450 model codes
| Model code | Controls | Color |
|---|---|---|
| XF450XSA | Digital (DEC) | Gray |
| LXF450XSA | Digital (DEC) | Gray |
| XF450USA | Digital (DEC) | Gray |
| LXF450USA | Digital (DEC) | Gray |
| XF450ESA | Digital (DEC) | Gray |
| LXF450ESA | Digital (DEC) | Gray |
| XF450XSA2 | Digital (DEC) | Pearl White |
| LXF450XSA2 | Digital (DEC) | Pearl White |
| XF450USA2 | Digital (DEC) | Pearl White |
| LXF450USA2 | Digital (DEC) | Pearl White |
| XF450ESA2 | Digital (DEC) | Pearl White |
| LXF450ESA2 | Digital (DEC) | Pearl White |
| XF450XSA4 | Digital (DEC) | Classic White |
| LXF450XSA4 | Digital (DEC) | Classic White |
| XF450USA4 | Digital (DEC) | Classic White |
| LXF450USA4 | Digital (DEC) | Classic White |
| XF450ESA4 | Digital (DEC) | Classic White |
| LXF450ESA4 | Digital (DEC) | Classic White |
Model codes from Yamaha's current model-code list. Ask us which code fits your boat; we confirm it when we quote.
Features
What's built into
the XF450.
- 450 hp V8 rated on 89-octane fuel.
- 12.3:1 compression ratio.
- Offered in Yamaha gray or pearlescent white per the product page.
- 5-year limited warranty for pleasure use.
- Phase Angle Control Charging, an award-winning Yamaha system.
- Direct injection sprays fuel at high pressure straight into each combustion chamber.
- Five-pump, three-stage fuel system reaches injection pressure up to 2900 PSI.
- In-bank exhaust gives gases a direct path through the lower unit and out the prop hub.
- Dedicated XTO propellers cover 16 to 17 1/8-inch diameters and 15 to 27-inch pitches.
- In-water gear lube change lets a technician replace lower-unit oil without hauling the boat.
- Below 2,500 RPM exhaust is routed away from the propeller for stronger low-speed control.
- Tilt pump stops at the maximum tilt setting, cutting noise and electrical draw.
- Two flushing options: built-in hose through the rigging tube or a front hose connection.
- Wide-span upper motor mounts work with the Long Span Mounting System to reduce vibration.
- Phase Angle Control Charging: up to 96 net amps at idle per engine, 480 in a quint.
- Redesigned rigging tube adds 3.25 inches of motor-well clearance when tilted up.
- Integrated digital electric steering motor takes commands directly from the electric helm.
- Works with Helm Master EX, including autopilot, DriftPoint Track and control of up to five engines.
- Carbon-coated, shimless bucket-style valve lifters for durability and less maintenance.
- Dual-chamber oil pump maintains oil delivery at every engine speed.
- Dual overhead camshafts driven by self-tensioning chains running in an oil bath.
- Plasma-fused sleeveless cylinder bores, which Yamaha rates 60 percent harder than steel.
- Two-stage water pump pairs a large rubber impeller with a steel impeller.
Repower
Repowering with the XF450
at Coastal Marine.
Coastal Marine is an Elite Yamaha dealer and an authorized Yamaha Repower Center on Shore Drive in Virginia Beach. A repower with the XF450 takes the old or worn-out outboard off a sound hull, of any make, and puts the new Yamaha on, with the controls, gauges and rigging the new setup needs. Warranty work on the Yamaha power we install is authorized in-house.
We don't post engine prices. Tell us the boat, what's on the transom now and roughly how many hours it has, and we'll quote the XF450 for it. Financing is available on repowers through Yamaha Financial Services.
XF450 repower fit
- Shaft lengths
- 25, 30 and 35-inchYamaha spec table
- Mounting centers
- 28.5-inchYamaha spec table
- Weight †
- 963 to 1010 lbYamaha spec table, lightest to heaviest listed
- Control types
- digital (DEC) (XF450XSA, LXF450XSA, XF450USA, LXF450USA, XF450ESA, LXF450ESA, XF450XSA2, LXF450XSA2, XF450USA2, LXF450USA2, XF450ESA2, LXF450ESA2, XF450XSA4, LXF450XSA4, XF450USA4, LXF450USA4, XF450ESA4, LXF450ESA4)Yamaha model-code list
- Steering
- Integrated, Electric ActuationYamaha spec table
- Most popular propeller
- XTO OS® with Shift Dampener System (SDS)Yamaha dealer spec sign, 2026-09-01
The XTO Offshore V8 family
Other engines
in this family.
Common questions
Yamaha XF450
questions, answered.
Get a quote
on new Yamaha power.
Tell us the boat, the engines on it now and roughly the hours, and we'll quote the XF450 for it. We answer same business day.