Yamaha LF300ECB 300HP Outboard – 25in Shaft, Counter Rotation, V6

Twin-engine setups track flawlessly once the counter-rotating Yamaha LF300ECB engages its left-hand gearcase. The massive 300-horsepower V6 block translates fly-by-wire binnacle inputs into brutal midrange torque, pushing loaded coastal skiffs through treacherous inlets smoothly. Verifying your twin-engine bracket secures this 300hp digital steer counter rotating outboard perfectly without starving the water pump in heavy chop.

Eliminate exhausting mechanical steering friction at high speeds by utilizing the built-in digital steering compatibility for sports-car-like handling. You pilot fast coastal bay boats with absolute single-finger precision without fighting stiff physical cables. Yamaha casts the 255 kg lower unit using specialized marine aluminum alloys, stopping severe galvanic decay when repowering twin engine coastal installations for continuous saltwater tournament use.

Key Features of Yamaha LF300ECB

- Digital Electronic Control: Replaces binding mechanical cables with precise electronic signals, allowing effortless single-finger shifting and throttle response.
- Counter-Rotating Gearcase: Cancels the massive lateral thrust of a starboard engine, keeping twin-engine performance hulls tracking perfectly straight underway.
- 4.2-Liter DOHC Block: Breathes massive volumes of clean air efficiently, generating 300 horsepower effortlessly to lift heavy fiberglass hulls onto plane.
- Digital Steering Ready: Integrates directly with advanced digital steering actuators, delivering immediate directional changes and zero steering fatigue during long runs.
- 25-Inch Extra-Long Shaft: Drops the propeller deeply below high offshore transoms, maintaining solid forward thrust and preventing water pump starvation.
- 50-70 Amp High-Output Alternator: Generates massive electrical current continuously, keeping deep cycle house batteries fully charged for heavy-duty marine electronics.
- 1.75:1 High-Speed Gearcase: Spins aggressive high-pitch propellers efficiently, translating massive block torque directly into forward vessel momentum.
- Multi-Point Sequential EFI: Meters gas perfectly into the cylinders, delivering crisp throttle response and maximizing fuel efficiency across the operating range.
- Anti-Corrosion Finish: Blocks severe galvanic decay physically, protecting the aluminum powerhead block across decades of daily saltwater exposure.
- Clean Four-Stroke Operation: Burns fuel with strict efficiency, guaranteeing peak performance while meeting modern clean-air environmental standards globally.

Why Choose Yamaha LF300ECB

This advanced 25-inch block acts strictly as a high-end fly-by-wire power plant designed for the port side of dual-engine applications. Substituting a mechanical control model sacrifices electronic shifting entirely. Upgrading your digital throttle syncing network is mandatory for smooth engine communication.

- Verify your twin-engine transom bracket accommodates a 25-inch shaft length safely.
- Link the DEC module to your master binnacle to synchronize shift commands perfectly.
- Keep coastal waters clean by running highly regulated four-stroke engine configurations.

Ideal Application and Vessel Fitment

This 300-horsepower drive-by-wire block is engineered strictly for modern deep-V center consoles, premium fiberglass skiffs, and twin-engine coastal vessels demanding a 25-inch shaft. Operating as a highly responsive digital drive, it translates electronic throttle data instantly, keeping twin-engine performance hulls tracking perfectly straight at high cruising speeds. It thrives in competitive coastal environments where balancing massive thrust requires precise fly-by-wire power without sacrificing absolute reliability.

Warranty, Support and Maintenance

Authorized recreational operation receives a 3-Year Pleasure Warranty alongside exceptional factory support. Registered commercial applications fall under a strict 1-Year Commercial Warranty with zero corrosion coverage applied to the block. Scheduled maintenance requires replacing gearcase lubricants and changing oil filters at manual-specified intervals. Always save all physical service records. Your engine serial number acts as the only way to source exact genuine replacement parts. For product details and order support, Mulmotor offers assistance before your purchase is placed.