Yamaha F350XSA

The Yamaha F350XSA completely redefines the 350-horsepower offshore class by moving away from heavy, historic V8 configurations in favor of an ultra-advanced, high-compression 4.3-liter Big Bore V6 powerhead. Borrowing direct technology from Yamaha’s flagship XTO 450HP, this motor features an impressive 11.1:1 compression ratio, plasma-fused sleeveless cylinder walls, and a center-mounted electronic throttle valve that optimizes high-volume airflow. The result is jaw-dropping low-end torque and high-RPM punch delivered in a package that is over 65 pounds lighter than competitive 350HP models.

Built natively for premium digital center consoles and multi-engine offshore vessels, the F350XSA comes standard with fully integrated Digital Electric Steering (DES). By eliminating external hydraulic pumps, lines, and bleeding requirements, it leaves your transom completely uncluttered while offering incredibly smooth, near-silent steering actuation. Fully compatible with Helm Master® EX digital electronic controls, this engine features elite updates like Thrust Enhancing Reverse Exhaust (TERE) for superior control at the docks, and the double-tap TotalTilt™ system for effortless trailering and shallow-water protection.

Models Available:

• F350XSA:Premium Digital Electronic Control (DEC) configuration featuring standard right-hand rotation, built-in digital electric steering, and a 25-inch extra-long shaft.

Key Features:

• Displacement: 4256cc (4.3L) Big-Bore 60° V6 (DOHC 24-Valve with VCT)

• Shaft Length: Extra-Long (635mm / 25″)

• Control Type: Digital Electronic Control (DEC) & Built-In Digital Electric Steering (DES)

• Fuel system: Electronic Fuel Injection (EFI) with 89 Octane recommendation

• Alternator Output: Up to 70 Gross Amps (Engineered with advanced heat management to provide maximum charging amps at low idle speeds)

• Weight: approx. 286 kg (629 lbs) — class-leading lightweight construction

• Thrust Enhancing Reverse Exhaust (TERE) for immediate reverse bite and maneuvering control

• TotalTilt™ function for automated, double-press full engine tilt adjustments

Ideal For: Large offshore center consoles, multi-engine sportfishing platforms, high-end walkarounds, cabin cruisers, and luxury performance catamarans.