Yamaha LF350UCC 350HP Outboard – 30in Shaft, Counter Rotation, V8

Description

Extreme heavy displacement hulls demand the absolute brutal torque of the Yamaha LF350UCC V8 counter-rotating outboard. The massive 5.3-liter 32-valve block breathes enormous volumes of air, translating digital fly-by-wire inputs into relentless acceleration to launch heavy multi-engine coastal vessels safely. Verifying your twin-engine bracket guarantees this 30 inch counter rotating v8 outboard aligns perfectly without starving the internal water pump in heavy chop.

Eradicate dangerous port-side tracking instability permanently by pairing this specialized left-hand gearcase with your primary starboard V8. You pilot massive twin-engine rigs with absolute single-finger precision via the Digital Electronic Control without fighting stiff physical cables. Yamaha casts the massive 365 kg lower unit using specialized anti-corrosion marine aluminum alloys. This structural barrier stops severe galvanic decay when repowering premium offshore skiffs for continuous saltwater tournament use.

Key Features of Yamaha LF350UCC

• 5.3-Liter V8 Block: Delivers brutal low-end torque from a massive 5330cc displacement, lifting extremely heavy fiberglass hulls onto plane instantly.
• Counter-Rotating Gearcase: Cancels the massive lateral thrust of a starboard engine, keeping twin-engine performance hulls tracking perfectly straight underway.
• 30-Inch Ultra-Long Shaft: Drops the propeller deeply below high offshore transoms, maintaining solid forward thrust and preventing water pump starvation.
• Digital Electronic Control (DEC): Translates hand movements into instant electronic commands, eliminating mechanical cable slop during precise marina maneuvering.
• 50-Amp Charging Alternator: Outputs massive charging power, keeping demanding radar systems and heavy-duty livewell pumps fully powered offshore.
• 1.73:1 Heavy-Duty Gearcase: Spins aggressive high-pitch propellers efficiently, translating massive V8 torque directly into forward vessel momentum.
• Multi-Point Sequential EFI: Calculates precise fuel requirements continuously, eliminating carburetor hesitation and providing crisp acceleration across the RPM band.
• Hydraulic Power Trim: Adjusts the running angle actively via the binnacle switch, optimizing bow attitude across aggressive offshore swells.
• Anti-Corrosion Castings: Blocks severe galvanic decay physically, protecting the aluminum powerhead block across decades of daily saltwater exposure.
• Clean Four-Stroke Combustion: Burns fuel highly efficiently without oil mixing, easily meeting strict local waterway emissions regulations and EPA standards.

Why Choose Yamaha LF350UCC

This advanced 30-inch V8 acts strictly as a high-end fly-by-wire power plant designed for the port side of dual-engine applications requiring immense torque. Substituting a V6 model sacrifices critical displacement entirely. Upgrading your digital throttle syncing network is mandatory for smooth engine communication.

• Verify your twin-engine transom bracket accommodates a 30-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 350-horsepower drive-by-wire V8 is engineered strictly for ultra-heavy offshore vessels, massive luxury pontoons, and large multi-engine catamarans demanding a 30-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 commercial offshore environments where balancing massive V8 thrust requires precise fly-by-wire power without sacrificing absolute reliability.

Warranty, Support and Maintenance

Authorized recreational operation receives a 3-Year Limited Warranty alongside exceptional factory support. Registered commercial applications fall under a strict 1-Year Commercial Warranty with separate terms 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.