Yamaha 300HP LF300XA

The Yamaha LF300XA is a 300 hp, six-cylinder four-stroke built with a counter-rotation lower unit. Shaft length is 25 inches, steering is remote mechanical, starting is electric, and the package weighs 551 pounds with 4169cc of displacement, meant for twin-engine rigging rather than a single-motor boat.

Why counter-rotation matters

Pairing a standard-rotation motor with a counter-rotation one on a twin-engine boat cancels out the steering pull each propeller would otherwise create on its own, letting the boat track straight without constant wheel correction. If you're running a single engine, this lower unit isn't what you want.

Fitment

Match the 25-inch shaft to your transom, and confirm remote mechanical steering hardware is in place. Standard equipment includes power trim and tilt, mechanical throttle and shift, and the owner's manual; a propeller is not included.

Mounting as a pair

When rigging two engines side by side, double-check the bracket spacing and transom centerline measurements called for in a twin-engine layout before drilling anything, since getting that wrong is far more costly to correct on two motors than one.

Engine

Six cylinders, 4169cc, electronic fuel injection, sold new.

Common questions

Is this for a single engine or a pair? Built for twin-engine use thanks to the counter-rotation lower unit.

Is a propeller included? No, that is a separate purchase from this motor.