Evinrude H300WZI 300HP H.O. G2 25″ iSteer DPS Outboard

Description

The Evinrude H300WZI is a 300hp standard rotation outboard designed with a 25-inch shaft for multi-engine offshore boats. This 3.4-liter V6 platform handles extreme high-seas operation by distributing its massive 3441 cc displacement over an optimized dry weight of 539 lbs to maximize rigidity. Crafted explicitly for deep-V sterns, the 25-inch shaft length ensures complete propeller immersion and continuous bite across sport platforms and fast bay hulls navigating open ocean waters.

Sustaining high-speed cruising across extreme tournament distances is easy when running this heavy-duty powerhead within its 5400 to 6000 RPM threshold. The optimized 1.85:1 gear ratio translates massive internal combustion pressures into a sweeping torque curve to lift wide hulls on plane rapidly. Backed by proven USA engineering excellence, the propulsion platform provides absolute mechanical consistency for captains operating far beyond standard coastal cell phone service ranges.

Technical Specifications of Evinrude H300WZI

• E-TEC direct injection pushes gasoline precisely for complete combustion and clean power delivery across the entire powerband.
• A robust 133-amp total alternator easily satisfies the heavy electricity demands of modern multi-display helms.
• Factory integrated iSteer dynamic power steering removes traditional complex plumbing with instant digital response at the wheel.
• The i-Trim automatic system makes trimming easy with a built-in automatic adjustment loop for shallow waters.
• An extensive 11.4-liter on-engine internal tank ensures components stay thoroughly lubricated during long wide-open throttle runs.
• The high-speed SLX lower unit gearcase ensures highly optimized hydrodynamic flow and efficient standard clockwise propeller thrust.

Classic White High Output Block

Advanced 2-stroke engineering treats the cylinder configurations of this 74-degree V6 block to optimize overall thermal efficiency. This advanced build path cuts unnecessary pounds from the powerhead block while drastically accelerating thermal dissipation under severe high-load operations.

Stratified Fuel Induction Setup

Direct fuel injection pushes fuel straight into the heart of each cylinder for complete combustion cycles on 87 octane fuel. This automated network produces crisp throttle recovery and instant starting capability when navigating treacherous inlets or heavy head seas.

Hydrodynamic SLX Gearcase Profile

Oversized drive gears housed inside a heavy-duty lower unit minimize underwater drag profiles during high-speed cruising maneuvers. This robust engineering dampens heavy gear-shift vibration while maximizing directional tracking on deep-transom multi-engine fiberglass hull configurations.

ICON II Digital Control Network

Digital electronic control networks integrate seamlessly with the factory integrated iSteer dynamic power steering setup to manage intensive tracking arrays automatically on open water. This digital platform coordinates with a high-capacity net charging loop to supply constant power to critical open-water electronics arrays.

Premium Single Engine Transom

Premium single-engine offshore fishing hulls, clean-rigging luxury pontoons, coastal bay boats, and heavy center consoles from 21 to 27 feet are targeted. The mid-length shaft configuration delivers exceptional leverage and structural vibration dampening when driving through chop.

On Engine Reservoir Servicing

Unimpeded maintenance access is guaranteed by a sleek cowling array that detaches smoothly for immediate fluid evaluation. Slick drainage pathways isolate waste fluids to allow for quick oil changes right at the marina slips. Pro Tip from the Shop: Periodically pull the side panel thumbscrews to check the integrated power steering fluid reservoir levels within the midsection assembly, preventing raw pump cavitation during sharp high-speed tactical maneuvering turns.