★★★★★
“Good experience with the Yamaha 450hp XTO Outboard · XF450XSA. Specs were easy to verify up front, and the follow-up answered our rigging questions before install day.”
Dana P. · Tampa, FL
Outboard Engines
Yamaha 450hp XTO Outboard · XF450XSA
4.5 / 5 · 2 customer reviewsBrand YamahaSKU XF450XSAReady to ship
Sale price · USD
$38,720
List $48,400
- Stock and fit checked before payment
- Freight and tax confirmed for your destination
- Optional paid on-site install: we travel and mount it
Yamaha 450hp XTO Outboard · XF450XSA
$38,720
XF450XSA is Yamaha’s 450hp XTO Offshore in a 25″ standard-rotation package. Compact shaft length for many modern hulls, with the charging output and electric steering that large electronics packages demand.
Questions before adding? Call +1 (281) 407-5491.
Fit-first guidance
We match horsepower, shaft, controls, and rigging to your application.
Verified availability
A specialist confirms live stock and lead time before you commit.
US delivery or on-site install
Freight to your ZIP or marina, or paid on-site install. We travel and mount the engine.
Specifications and fit details
| hp | 450 |
|---|---|
| weight | 963 lbs |
| starter | Electric |
| fuel Type | Gasoline |
| steering | Integrated Electric Power Steering |
| warranty | Yamaha 3-Year Warranty |
| cylinders | 8 cyl |
| engine Type | Yamaha XF450XSA XTO Offshore Four Stroke |
| shaft Length | 25″ |
| displacement | 5.6L |
| fuel Induction | Direct Injection / Up to 2900 PSI |
| alternator Output | 102 amp |
| full Throttle Range | 5000 – 6000 rpm |
Overview
Built for the water you run
XF450XSA is Yamaha’s 450hp XTO Offshore in a 25″ standard-rotation package. Compact shaft length for many modern hulls, with the charging output and electric steering that large electronics packages demand.
- 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.
- 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 NEW Phase Angle Control Charging System meets the extreme electrical needs of today’s larger boats. This Innovation Award-winning new 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. This is up to 65 percent more maximum net charge at idle than the previous XTO model.
Full technical notes
Yamaha’s award-winning 5.6L V8 XTO Offshore ® outboards, and their innovative engineering, set the bar for power and performance offshore. With extreme control, precision and reliability—and now up to 450 horses—the XTO Offshore lets you go further, faster and with more confidence than ever before.
Packed with industry–first technology like a direct-injection four-stroke powerhead, an award-winning charging system and integrated all-electric steering, the word outboard is an understatement. It‘s a fully integrated power system. And it’s elevating the entire offshore boating experience. Aim for the horizon and beyond with the Yamaha XTO Offshore F450 and F425.
The XTO Offshore ® 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.
Availability & delivery
Stock, exact configuration, and insured US freight are confirmed in your written TideHarbor quote.
Trusted for marine power projects
★★★★★
“Solid buying process for the Yamaha 450hp XTO Outboard · XF450XSA. Wish the crate photos had arrived a day earlier, but the unit itself was clean and correctly labeled.”
Hannah T. · Portland, ME
Compare similar options
Save 20%Ready to ship
Mercury
Mercury 350hp Verado Outboards · V10, Digital Throttle and Shift, Electric Start, 30″ Shaft, Counter Rotation · 350CXXL
- 350 HP
- Fuel: Gasoline
- Steering: Digital Throttle & Shift
$27,920
List $34,900
Save 20%Ready to ship
Yamaha
Yamaha 250hp DEC Outboard · F250ESB2
- 250 HP
- Fuel: Gasoline
- Shaft: 35″
$26,000
List $32,500
Save 20%Ready to ship
Yamaha
Yamaha 250hp White Outboard · LF250USB2
- 250 HP
- Fuel: Gasoline
- Shaft: 30″
$26,320
List $32,900