Evinrude H300WXC 300HP G2 30″ Digital Control Outboard

The Evinrude H300Wxc is a 300hp counter 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 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 helps support complete propeller immersion and continuous bite across heavy-duty fiberglass hulls navigating rough open ocean waters.

The 5400 to 6000 RPM operating range should be matched to the boat, load, propeller, and intended use. The 1.85:1 gear ratio should be matched with an appropriate propeller and boat setup. under heavy loads. This USA-built outboard leverages advanced block harmonics to eliminate low-frequency hull vibrations during severe long-range deep-sea operations.

Technical Specifications of Evinrude H300Wxc

- 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 power to keep house battery banks charged.
- Integrated hydraulic steering with counter-rotation digital control rigging replaces complex external lines with instant response at the wheel.
- The proprietary i-Trim automatic system simplifies trailing and shallow-water operation by adjusting engine angle clear of the water when used as intended.
- An extensive 11.4-liter internal tank helps support optimal thermal dissipation and continuous lubrication during hard wide-open throttle runs.
- The specialized counter-rotation lower unit balances out propeller torque to maintain tracking on multi-engine transoms.

Classic White Counter Rotation Setup

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 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 delivery is designed to support instant throttle response and crisp acceleration during acceleration and normal operation.

SLX Heavy Duty Lower Unit

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

Integrated Hydraulic Steering Control

Digital electronic control networks integrate seamlessly with the integrated hydraulic steering systems to automate multi-engine tracking. This counter-rotation rigging layout allows mechanics to orchestrate perfectly synchronized tracking adjustments without sacrificing advanced powerhead telemetry mapping cycles.

Twin Engine Transom Match

Twin-engine offshore center consoles, heavy deep-transom catamarans, offshore walkarounds, and coastal commercial transoms ranging from 24 to 32 feet provide the appropriate match. Its 30-inch shaft prevents propeller ventilation when ascending rollers in rough open-ocean swells.

Internal Tank Fluid Management

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.Maintenance note: Follow the manufacturer’s service procedures and lubrication specifications for the engine and gearcase.