Yamaha F300XA 300HP 4.2L V6 Offshore 25″ Outboard Motor

Yamaha 300HP F300XA 4.2L V6 Offshore 25in

The Yamaha 300HP F300XA is a cornerstone of the 4.2L V6 Offshore family, featuring a 25-inch shaft and a big-bore displacement that delivers class-leading torque density. This 4166cc DOHC architecture utilizes Plasma Fusion technology to create cylinder walls that are harder than steel but significantly lighter, resulting in a superior power-to-weight ratio that outpaces traditional V6 designs. The mechanical soul of the F300XA focuses on pure displacement and thermal efficiency, providing the explosive mid-range punch and top-end speed required for high-performance coastal cruisers and offshore center consoles.

Refined for professional-grade reliability, the F300XA leverages Variable Camshaft Timing (VCT) to optimize air intake and torque across the entire power band. The engine is protected by specialized marine-grade alloys and Yamaha’s proprietary multi-layered anti-corrosion system to combat galvanic oxidation in harsh saltwater environments. Maintenance is made effortless by the front-mounted freshwater flush port and easy-access service points. This model features a high-output 50-amp alternator, ensuring a stable charging system for high-demand tournament electronics, livewells, and essential navigational safety gear during long-range coastal transits.

Key Features of Yamaha F300XA

• 4166cc 24-Valve 60-Degree V6.
• 300 Horsepower Prop Shaft Rating.
• 25-Inch Shaft 571 lbs Weight.
• Digital Electronic Control (DEC) Compatibility.
• Variable Camshaft Timing (VCT).
• 50 Amp Total Output Alternator.
• 1.75:1 Ratio Performance Gearcase.