fits make: Mercury, Evinrude, Yamaha. year: 2015–2021.

( Brand: Solas ), ( Manufacturer Part Number: 3592985 ), ( Part Type: Prop Case ), ( UPC: 824375047558 ), ( Propeller Rotation: Standard )
The product you're inquiring about is a 15-inch, 21-pitch, SST vented propeller with the part numbers 9575-150-21, 115-300, and 3-4. This propeller is designed specifically for outboard engines from Mercury, Evinrude, and Yamaha, and it's compatible with the models listed in the part numbers.
The SST vented propeller is a high-performance option that delivers both speed and efficiency. The vented design allows for a reduction in cavitation, which results in less noise and improved fuel efficiency. This propeller is also known for its durability, as it's made with strong materials that can withstand the rigors of regular use.
The 15-inch diameter of this propeller provides a good balance between speed and maneuverability, making it a great choice for a wide range of watercraft. The 21-pitch ensures a good balance between power and efficiency, providing smooth acceleration and a comfortable cruise.
In terms of compatibility, this propeller is for outboard engines with a displacement of 115-300 cubic inches, and it's suitable for 3-4 gear ratios. It's important to note that while this propeller is a great fit for many outboard engines, it's always a good idea to double-check with the manufacturer to ensure compatibility with your specific model.
Overall, this 15-inch, 21-pitch, SST vented propeller is a high-quality, high-performance option for outboard engine users seeking a balance between speed, efficiency, and durability.
Product: (9575-150-21) 15" 21 pitch SST vented prop for 115-300 HP Mercury, Evinrude, and Yamaha outboards with part numbers 3592985 and 824375047558 (referred to as Solas prop)
Pros:1. SST (Skeg-Adjustable, Shallow-Depth, and Tilt) design allows for easy adjustment of the propeller for different water depths and boat angles.
2. Vented leading edge improves efficiency and reduces drag, resulting in better fuel economy and faster speeds.
3. 21 pitch provides good balance between top-end speed and hole shot (acceleration).
4. Suitable for a wide range of outboard engines, including Mercury, Evinrude, and Yamaha, making it a versatile choice for boat owners.
Cons:1. The SST design may increase the overall height of the propeller, potentially affecting clearance in shallow waters or when docking.
2. The vented leading edge may be more susceptible to damage from debris or collisions with underwater objects.
3. The higher pitch may not provide as much torque as lower pitched props, which may impact boat performance in certain conditions, such as when carrying heavy loads or in rough seas.
Conclusion:The Solas prop (9575-150-21) is a solid choice for boat owners seeking a high-performance propeller that offers good efficiency, speed, and versatility. Its SST design and vented leading edge make it suitable for various water conditions and outboard engines. However, it's essential to consider the potential drawbacks, such as increased height and potential damage to the vented leading edge, to ensure it meets your specific needs.
Recommendation:If you prioritize top-end speed, good fuel economy, and versatility with your outboard engine, the Solas prop (9575-150-21) should be a strong consideration. However, if you often navigate shallow waters or frequently encounter debris, you may want to consider a different propeller with a lower pitch or solid leading edge to minimize potential issues. Always consult with a professional or the manufacturer for the best advice based on your specific boat and water conditions.
135 hp 2-stroke or 4-stroke newer150 newer175 newer200 newer220 1 all years250 newer275 and newer 3. The pitch of propeller is extremely important.
Requires Rb hub kit for installation. 4l hp 2-stroke 1986 this boat propeller fits the following Mercuries stern drives:Mercuries 15 tooth alpha one all years bravo years this prop Honda outboard motors:bf 115 newer bf 135 150 200 225 250 newer this Evinrude, Johnson, MC or bro motors.
Mainly for 200 hp and up. 2l newer 15 tooth sea drive 4 this boat prop fits Suzuki outboards with a 15 tooth spline:-150 hp TD stroke def 2006 newer-175 newer-200 2004 newer-225 newer-250 newer this also the following Nissan towheads outboards:-bft115 newer.
More aggressive camber design and cupping, longer barrel liter v 2014 newer-bft225.