Yamaha LF300ESB 300HP Outboard – 25in Shaft, Counter Rotation

Battling brutal steering torque offshore ends the moment the Yamaha LF300ESB neutralizes your port-side transom. The integrated Digital Electric Steering system translates single-finger binnacle inputs into instant directional thrust, keeping heavy twin-engine center consoles tracking perfectly straight across steep ocean swells. Verifying your exact twin-engine bracket geometry ensures this digital steer counter rotating outboard mounts properly without generating excessive lower unit drag.

Cancel aggressive starboard propeller walk permanently by pairing this counter-rotating 4.2-liter V6 block with your primary starboard drive. You pilot massive offshore rigs flawlessly via the fly-by-wire network without fighting stiff hydraulic cylinders. Yamaha casts the 267 kg lower unit using specialized anti-corrosion marine aluminum alloys. This structural barrier stops severe galvanic decay when repowering twin engine offshore boats for daily saltwater tournament use.

Key Features of Yamaha LF300ESB

- Multi-Point Sequential EFI: Calculates precise fuel requirements continuously, eliminating carburetor hesitation and ensuring crisp acceleration across the 5000-6000 RPM band.
- 25-Inch Extra-Long Shaft: Drops the propeller deeply below high offshore transoms, maintaining solid forward thrust and preventing water pump starvation.
- Hydraulic Power Trim: Adjusts the running angle actively via the binnacle switch, optimizing bow attitude across aggressive offshore swells.
- Integrated Digital Electric Steering: Eliminates messy external hydraulic cylinders completely, delivering immediate directional changes and zero steering fatigue during long runs.
- 50-70 Amp Charging Alternator: Outputs massive electrical current continuously, keeping demanding radar systems and heavy-duty livewell pumps fully powered offshore.
- Anti-Corrosion Castings: Blocks severe galvanic decay physically, protecting the aluminum powerhead block across decades of daily saltwater exposure.
- Through-Prop Exhaust: Channels toxic combustion gases directly underwater, keeping the aft operator station completely free of choking smoke.
- Accessible Oil Drain: Simplifies routine crankcase lubrication changes, saving significant time during seasonal maintenance prep without specialized dealership tools.
- Counter-Rotating Gearcase: Cancels the massive lateral thrust of a starboard engine, keeping twin-engine performance hulls tracking perfectly straight underway.
- Clean Four-Stroke Combustion: Burns fuel highly efficiently without oil mixing, easily meeting strict local waterway emissions regulations and EPA standards.

Why Choose Yamaha LF300ESB

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 standard rotation model sacrifices tracking stability 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, advanced fiberglass skiffs, and twin-engine coastal vessels demanding a 25-inch shaft. Operating as a highly responsive digital drive equipped with integrated DES, 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. Mulmotor provides product-information support before purchase and assistance with order-related questions.