Yamaha 450HP V8 XTO Offshore Outboard Motor (Twin Setup Available)

A 350 HP V8 already covers serious offshore power, but the Yamaha 450 outboard price on this XF450NSA reflects a step beyond that — a 5.6-liter naturally aspirated V8 built for the heaviest offshore center consoles and express cruisers. This particular unit has 360 hours on it and is available either as a single engine or as part of a twin setup for larger hulls.

What Makes This Yamaha 450 Outboard Price Worth Considering

Several features set this XF450NSA apart from smaller Yamaha V8 and inline platforms:

• 5.6L high-compression V8 block for strong low-end torque and quick planing
• Direct fuel injection at up to 2,900 PSI for sharper throttle response and efficiency
• Digital Electric Steering (DES), compatible with Yamaha’s Helm Master EX system, with no hydraulic lines or pumps
• High-output phase angle charging for running electronics, livewells, and navigation equipment
• Exhaust gas shift relief, venting exhaust above the cavitation plate in reverse for cleaner prop bite and easier docking

Fit And Specifications For This XF450NSA

Digital Electric Steering removes hydraulic lines and pumps from the rigging entirely, which simplifies installation on a new build and reduces what needs maintaining over time compared to a hydraulic steering setup. The high-output phase angle charging system is built specifically for boats running a full electronics load — gyros, livewells, and navigation suites — without pulling batteries down at idle.

Made in Japan, this engine ships as a single unit with a twin setup available for buyers repowering a larger hull that calls for two engines rather than one. At 360 hours, it’s already proven out on the water rather than being a brand-new, unrun unit.

Boaters comparing this against Yamaha’s other offshore platforms can browse the full yamaha outboards for sale lineup, or look at the yamaha 350 outboard price listing for a lighter V8 option. Anyone rigging out a full offshore electronics package can check the buy garmin livescope bundle option to pair with this engine. Once installed, matching the right propeller to this power level matters too — browse current stock of outboard propellers for sale.

Anyone repowering a heavy offshore hull or rigging a new high-performance build should find this XF450NSA covers both the power and the steering simplicity that a large single-engine or twin installation calls for. Reach out to confirm shaft length availability and current stock.