Evinrude H300GXA 300HP G2 30″ Mechanical Outboard

Description

The Evinrude H300GXA is a 300hp standard rotation outboard designed with a 30-inch ultra-long shaft for multi-engine offshore boats. This 3.4-liter 74-degree V6 platform produces immense structural density through its massive 3441 cc displacement while maintaining an optimized dry weight of 558 lbs to maximize pure marine performance. Engineered explicitly for deep-transom configurations, the 30-inch shaft length ensures ideal propeller depth and balanced tracking across heavy-duty fiberglass hulls navigating rough open ocean waters.

Running hard within its 5400 to 6000 RPM range is how this offshore engine sustains incredible cruising speeds across long tournament distances. The heavy-duty 1.85:1 gear ratio converts pure combustion forces into a flat torque curve, ensuring heavy boats pop onto plane without burying the stern under heavy loads. This USA-built masterpiece leverages advanced block harmonics to eliminate low-frequency hull vibrations during severe long-range deep-sea operations.

Technical Specifications of Evinrude H300GXA

• E-TEC direct injection utilizes stratified low RPM combustion to maximize total thermal efficiency across all cylinders.
• A heavy-duty 133 total amp alternator generates massive power to keep house battery banks fully topped off.
• The factory integrated dynamic power steering mechanism replaces complex external plumbing with instant response at the wheel.
• The proprietary i-Trim automatic system simplifies trailing and shallow-water operation by adjusting engine angle completely out of harm.
• An extensive 11.4-liter internal tank ensures optimal thermal dissipation and continuous lubrication during hard wide-open throttle runs.
• The specialized SLX heavy duty lower unit gearcase balances out propeller torque to maintain tracking on multi-engine transoms.

Slate Gray V6 Platform

An advanced 74-degree V6 direct-injection 2-stroke design treats the cylinder layout of this high-output powerhead to optimize total thermal efficiency. This advanced engineering process shaves critical response lag off the block while drastically improving volumetric efficiency under severe load environments.

Stratified Low RPM Induction

Direct fuel injection sprays gasoline straight into the combustion chambers under high pressure for clean combustion cycles on 87 octane fuel. This meticulous delivery guarantees instant throttle response and crisp acceleration when timing massive ocean rollers.

SLX Heavy Duty Housing

Oversized internal gears and a highly hydrodynamic gearcase profile minimize underwater drag at high cruising speeds. This structural configuration mitigates lower-unit gear chatter and ensures smooth power transmission to the hub during tight cornering maneuvers.

ICON II Digital Control Rigging

Digital electronic control networks integrate seamlessly with the factory integrated 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.

Offshore Deep Transom Match

Offshore fishing center consoles, deep-transom multi-engine setups, coastal sportfishing platforms, and luxury catamarans from 25 to 34 feet are targeted. The ultra-long shaft configuration delivers exceptional leverage and structural vibration dampening when driving through steep waves.

On Engine Reservoir Servicing

Fast access to vital checking points is provided by a specialized outer cowling structure that cuts service times down significantly. Changing the massive internal fluid volume remains completely clean thanks to an engineered clean-drain setup that prevents spoiling oil. Pro Tip from the Shop: Always utilize the auto-storage fogging feature built into the digital system to protect internal engine surfaces from moisture condensation during long layout storage stretches between fishing seasons.