Browse every Yamaha 425 HP outboard for sale: XTO Offshore V8 outboards with direct injection and integrated electric steering, in 25, 30 and 35 inch shafts, standard and counter rotation. Massive thrust for large offshore boats, shipped worldwide.

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Yamaha 425 HP Outboard for Sale: The XTO Offshore

The Yamaha XTO Offshore is built for one job: moving very large, heavy boats with authority. It is a 5.6 litre V8 four stroke with direct fuel injection, a gear case designed to swing very large propellers and steering built into the engine itself. Yamaha's focus with the XTO was not just horsepower but thrust, the ability to push a heavily loaded offshore boat onto plane and hold speed in big seas. Here is every Yamaha 425 HP outboard for sale in our stock.

XTO Models in Stock

Standard rotation (XF425)

Counter rotation (LXF425)

XF is standard rotation and LXF counter rotation. X, U and E are the 25, 30 and 35 inch shafts. The final digit marks variants such as colour; each product page gives the details.

What Makes the XTO Different

Direct injection V8

Fuel is injected straight into the cylinders at very high pressure, improving efficiency and power from the large V8.

Built for thrust

A strong gear case and large diameter props help the XTO move heavy boats, especially at mid range speeds where offshore boats spend most of their time.

Integrated electric steering

Steering is built into the engine, removing hydraulic hoses and pumps from the transom and making installations cleaner and simpler.

Designed for multi engine rigs

XTOs work with Yamaha's digital controls and Helm Master EX for joystick docking on boats with several engines.

Boats That Suit the XTO

  • Offshore centre consoles of 11 metres and up in twin, triple or quad installations.
  • Large sportfishers and express cruisers moving from inboards to outboards.
  • Heavy commercial and patrol boats.

Choosing a Shaft and Rotation

The 35 inch E shaft is common on large offshore boats with tall transoms; 25 and 30 inch versions suit other hull designs and brackets. In twin rigs, pair an XF with an LXF of the same shaft. Measure carefully and send us your boat details if you are unsure.

Installation Planning

An XTO installation is a major project. Plan for Yamaha digital controls and harnesses, high capacity batteries and charging, a strong transom or bracket rated for the weight, high flow fuel delivery and filtration, and the correct XTO propellers. We recommend professional installation.

Looking After an XTO

Follow Yamaha's service schedule closely, ideally with a technician trained on XTO engines. Flush each engine after salt water use, keep anodes in good condition, change oil, filters and gear oil on time and use clean, fresh fuel with high capacity water separation. On multi engine boats, service all engines together to keep them matched.

Frequently Asked Questions

Is the XTO 425 a V8?

Yes, a 5.6 litre direct injection V8.

Does it need hydraulic steering?

No, steering is integrated electric.

Do you ship XTOs worldwide?

Yes, crated by freight or container, with a quote first.

How to Order

Every engine in this category is listed with its full model code and price. Choose the version that matches your transom height, steering and starting needs, then ask us for a freight quote to your country or nearest port. We ship worldwide with tracking, and your quote shows the full delivery cost before you pay. Call or WhatsApp +1 209 690 5983, or message us through our contact page. To compare other sizes, see our full range of Yamaha outboards.

Still weighing up which model to get? Our Yamaha 425 HP buying guide goes through the specs, model codes, prices and the boats each version suits, so you can pick the right one before you order.