SOLAS Amita 4 Aluminum 4-Blade Propeller 10.1x12 for Johnson/Evinrude 20-35 HP

SOLAS Amita 4 is a four-blade propeller designed to provide greater thrust and improved boat control compared to standard three-blade models. In the 10.1x12 size, this prop is an excellent choice for boats with Johnson/Evinrude 20-35 HP engines that often operate under heavier loads or perform towing duties. The added fourth blade gives a larger surface area interacting with the water, which helps the boat plane faster and remain stable at low speeds.

Unlike 3-blade props, the 4-blade SOLAS Amita 4 10.1x12 offers a better “bite” in the water during maneuvers. This reduces cavitation and vibration when turning, especially if the water is rough or the boat is loaded. The prop is made from high-quality pressure-cast aluminum, giving the blades strength and rigidity. The exterior coating protects against corrosion, ensuring the propeller has a long service life even with daily use in saltwater.

Use Cases & Recommendations:

• Ideal for heavily-loaded small boats (3–5 m) – e.g., larger inflatable RIBs, workboats, or fishing boats carrying lots of gear, powered by 20-35 HP motors
• Quicker planing and strong thrust: The 4-blade design with 12″ pitch helps the boat get on plane quickly even when loaded with passengers or cargo, thanks to the extra pushing effect
• Great for watersports: Suitable if you use your boat for towing tubes, water skis, or wakeboards – the prop provides steady thrust and better control at low and mid speeds, reducing the chance of prop slip
• Compatibility: Fits 14-spline prop shafts on Johnson/Evinrude 20-35 HP outboards (3″ gearcase) – the same applications as equivalent 3-blade models, but offers a different performance profile. Simple bolt-on replacement with no extra adapters required