SOLAS Amita 3 Aluminum 3-Blade Propeller 12.5x13 for Johnson/Evinrude 40-50 HP

This SOLAS Amita 3 12-1/2 x 13 aluminum propeller is engineered for higher-power outboard motors and delivers serious thrust for medium-sized boats. It falls into the Amita 3-C category, meaning its blades are broader than those on standard 3-blade props. This “plus” in the design allows for more effective propulsion of heavy boats or those carrying larger loads, without sacrificing speed.

It’s especially suitable for Johnson/Evinrude engines around 40-50 HP (including some 4-stroke models and OMC sterndrive setups up to 50 HP), where stock props might not provide enough bite during takeoff. With this prop, your boat will plane more easily and maintain a good speed at lower engine RPM. Moreover, it’s compatible with a range of Suzuki motors (35-65 HP, 13-spline shafts), since Johnson’s early-2000s 40/50 HP 4-strokes were based on Suzuki blocks. This broadens the prop’s applicability, making it a versatile solution across brands.

As always with SOLAS, the build quality is high – the material is aluminum cast under high pressure for maximum density and strength, and the blades are designed for an optimal angle of attack. The finish is resistant to scratching and corrosion, ensuring a long life even with continuous use in marine environments. This prop offers an excellent blend of cost and performance, making it a popular choice for boat owners seeking reliability and improved performance.

Use Cases & Recommendations:

• Ideal for medium-sized boats (4–6 m) – e.g., fishing vessels, utility boats, or small leisure craft powered by 40-50 HP Johnson/Evinrude. It can even handle 60 HP if the gearcase is 3-1/4″
• Increased thrust under load: Thanks to the wider blades, the prop delivers a powerful push – useful for heavily-loaded boats, starting off with many passengers, or scenarios where more “grunt” is needed (such as towing aquaculture gear or marker buoys)
• Stable cruising performance: At mid-range RPM (cruising speeds) the boat stays steady on course with minimal slip, and the engine runs in an optimal range – resulting in a smooth glide across the water
• Compatibility: Johnson/Evinrude outboards 40, 48, 50 HP (2-stroke and 4-stroke up to ~2007) with 13-spline shafts, as well as OMC Commercial/BRP engines ~40-50 HP. Compatible with Suzuki DT/DF 40, 50, 55, 60, 65 HP (3-1/4″ gearcase) – e.g., Johnson 40/50 4-stroke (rebadged Suzuki), Suzuki DF50A/60A, etc. This prop replaces OEM part numbers such as 176316, 503340, making it a direct substitute for the original propeller