2018 Yamaha F300 V6 4.2L Mechanical 25 F300XA Outboard Motor

Running cable-and-lever steering on Yamaha's top-output 4.2-liter V6, the F300XA settles at 551 lbs of dry weight on a 25-inch shaft, with a reported cruise-rpm edge of up to 19 percent over other 300-hp four-stroke outboards.

Why this configuration

Match this trim to a boat already carrying mechanical steering hardware; it's the more budget-friendly route compared with the digital XCA version if your console was never wired for a touchscreen gauge. Trim here runs from -3 up to +16 degrees.

Cylinder design

Yamaha fuses the cylinder sleeves straight into the block on this engine family, skipping separate liners entirely; the resulting walls come out roughly 60 percent harder than steel, which lets the bore grow without changing the block's outer dimensions. Individual intake and exhaust camshafts reduce moving parts next to a conventional rocker-arm layout, and sure-seal tri-latches keep the cowl sealed against water and debris on a wet, bouncing offshore ride. Owners running this trim hard for a full season still report smooth starts without any major servicing beyond routine oil and filter changes, and the mechanical controls are simple enough to inspect and service at the dock without specialized diagnostic equipment.

Pleasure and government buyers get three years here, commercial buyers get one year of coverage. Confirm rigging and propeller choice with us before ordering.