
Evinrude H300WXI 300HP G2 30″ iSteer DPS Outboard
The Evinrude H300WXI combines a 3.4L direct-injection V6 engine with factory-integrated iSteer dynamic power steering, built for multi-engine express catamarans on a 30-inch shaft.
- 3441cc V6 block produces 300HP
- Factory DPS provides effortless steering response
- 133A alternator charges heavy battery banks
- 11.4L internal tank extends oil intervals
The Evinrude H300WXI is a 300hp standard rotation outboard designed with a 30-inch ultra-long shaft for multi-engine offshore boats. This 3.4-liter V6 platform handles offshore high-seas operation by distributing its 3441 cc displacement over an optimized dry weight of 558 lbs to maximize rigidity. Crafted explicitly for deep-V sterns, the 30-inch ultra-long shaft helps support complete propeller immersion and continuous bite across large catamarans and offshore walkarounds navigating open ocean waters.
Sustaining high-speed cruising across offshore 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 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 mechanical consistency for captains operating far beyond standard coastal cell phone service ranges.
Classic White Premium Block
Advanced 2-stroke engineering treats the cylinder configurations of this 74-degree V6 block to optimize overall thermal efficiency. This build path cuts unnecessary pounds from the powerhead block while drastically accelerating thermal dissipation under severe high-load operations.
Hydrodynamic SLX Lower Unit
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.
Integrated dynamic Power Steering
Integrated dynamic power steering configurations combine directly with the digital controls to handle intensive tracking arrays automatically on open water. This digital platform coordinates with a high-capacity net charging setup to supply constant power to critical open-water electronics arrays.
Premium Multi Engine Integration
Premium multi-engine offshore fishing hulls, clean-rigging luxury pontoons, catamarans, and heavy express configurations ranging from 25 to 34 feet provide the appropriate match. Its 30-inch shaft prevents propeller ventilation when ascending rollers in rough open-ocean swells.
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.Maintenance note: Follow the manufacturer’s service procedures and lubrication specifications for the engine and gearcase.
Product Specifications
Evinrude H300WXI 300HP G2 30" iSteer DPS Outboard Specs
| Brand | Evinrude |
|---|---|
| Full Model Code | H300WXXI |
| Country of Origin | USA |
| Engine Family/Series | E-TEC G2 (Classic White Premium) |
| Engine Type | V6 74° E-TEC Direct Injection 2-Stroke |
| Displacement | 3.4 Liters / 3441 cc |
| Horsepower | 300 HP / 224 kW |
| Full Throttle RPM Range | 5400 - 6000 RPM |
| Fuel Induction System | E-TEC Direct Injection with Stratified Low RPM Combustion Mode |
| Alternator Output | 133 Amps Total / 50 Net Dedicated |
| Gear Ratio | 1.85:1 |
| Shaft Length | U (30") |
| Dry Weight | 253 kg / 558 lbs |
| Bore x Stroke | 98.0 mm x 76.0 mm |
| Starting & Steering System | Electric Smart Start & Factory Integrated iSteer Dynamic Power Steering (DPS) with ICON II Controls |
| Trim/Tilt Method | Power Trim & Tilt (Integrated i-Trim Automatic Setup) |
| Oil Capacity | 11.4 Liters / 3.0 Gallons (On-Engine Internal Tank) |
| Recommended Fuel | 87 Octane |
| Standard Warranty | 5 Years Limited (3-Year Factory / 2-Year Extended) |
| Application | Premium multi-engine offshore fishing hulls, clean-rigging luxury pontoons, catamarans, and heavy express configurations (25-34 ft hulls) |
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