
Evinrude H300WZI 300HP H.O. G2 25″ iSteer DPS Outboard
The Evinrude H300WZI pairs a 3.4L direct-injection V6 powerhead with factory iSteer dynamic power steering, built for high-performance offshore platforms on a 25-inch shaft.
- 3441cc powerhead generates 300HP output
- Factory DPS ensures agile helm control
- High-speed SLX gearcase delivers fast acceleration
- 25-inch shaft suits tournament boat transoms
- 133A alternator powers high-draw sonar electronics
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 offshore high-seas operation by distributing its 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 helps support complete propeller immersion and continuous bite across sport platforms and fast bay hulls 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 High Output 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 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.
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 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.Maintenance note: Follow the manufacturer’s service procedures and lubrication specifications for the engine and gearcase.
Product Specifications
Evinrude H300WZI 300HP H.O. G2 25" iSteer DPS Outboard Specs
| Brand | Evinrude |
|---|---|
| Full Model Code | H300WZI |
| Country of Origin | USA |
| Engine Family/Series | E-TEC G2 H.O. (Classic White) |
| Engine Type | V6 74° E-TEC Direct Injection 2-Stroke |
| Displacement | 3.4 Liters / 3441 cc |
| Horsepower | 300 HP / 224 kW (High Output Tuning) |
| 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 (SLX High-Speed Lower Unit) |
| Shaft Length | X (25") |
| Dry Weight | 244 kg / 539 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 high-performance offshore center consoles, tournament bass configurations, and digital fly-by-wire multi-engine platforms (21-28 ft hulls) |
Payment Protection
Checkout will use the selected PayPal or Stripe payment method.
Free International Shipping
Free standard delivery to the United States, Canada and Australia.
Product Support
Ask for product and compatibility information before ordering.
Reviews
There are no reviews yet.