Description
11 1/4x15 A3r Prop Sema | Boat Supply Store
Maximize your vessel's planing efficiency with this 11 1/4 inch diameter, 15 inch pitch aluminum propeller engineered for optimal thrust. Its A3r design is calibrated to reduce cavitation and enhance grip during aggressive maneuvers, crucial for swift response in shallow Texas bay systems. This propeller ensures efficient power transfer from your outboard or stern drive, providing reliable performance for routine cruising or competitive fishing scenarios.
Key Features
- Optimized for 11 1/4 inch diameter vessels
- Precise 15 inch pitch for effective thrust generation
- Durable aluminum construction for longevity
- A3r blade geometry minimizes slip and enhances grip
- Engineered for reduced cavitation during acceleration
- Direct replacement for specified engine models
- Improved fuel efficiency through efficient power transfer
- Reliable performance in varied marine environments
Specifications
| Product Specifications | |
|---|---|
| Diameter | 11 1/4 inches |
| Pitch | 15 inches |
| Material | Aluminum |
| Blade Count | 3 |
| Hub Size | Standard |
Who This Is For
Boaters seeking to replace a damaged or worn propeller with a durable, performance-oriented aluminum option. Ideal for owners of smaller outboard or stern drive vessels needing a reliable propeller for everyday use.
How It Compares
| Feature | 11 1/4x15 A3r Prop Sema | Quicksilver |
|---|---|---|
| Diameter | 11 1/4 inches | 11 1/4 inches |
| Pitch | 15 inches | — |
| Material | Aluminum | Aluminum |
| Blade Count | 3 | 3 |
Common Concerns Answered
Will this propeller fit my specific engine model?
Verify your engine's propeller shaft spline count and diameter against the specifications for this propeller to ensure compatibility. Always consult your engine's manual for exact propeller fitment guidelines.
How does an aluminum propeller compare to a stainless steel one?
Aluminum propellers offer a cost-effective solution for general use and lighter-duty applications. Stainless steel propellers provide superior durability and performance in high-stress environments but come at a higher price point.
What are the signs of a failing propeller that needs replacement?
Look for visible damage such as bent or chipped blades, excessive vibration, or a noticeable decrease in performance and fuel efficiency. These indicate the propeller is compromised and requires immediate replacement.
Frequently Asked Questions
What is the recommended RPM range for this propeller?
The optimal operating RPM range for this propeller is determined by your specific engine's manufacturer recommendations. Consult your engine's manual for the precise full-throttle RPM range.
How do I determine the correct pitch for my boat?
Propeller pitch is critical for achieving optimal engine performance. An incorrect pitch can lead to over-revving or lugging the engine. Your boat's manufacturer typically specifies the correct pitch for its intended use.
What does 'A3r' refer to in the propeller description?
The 'A3r' designation refers to a specific blade geometry designed by Polaris Propeller USA, Inc. It generally indicates a blade profile engineered for improved hydrodynamic efficiency and reduced drag.
Can this propeller be used in saltwater environments?
Yes, this aluminum propeller is designed for use in both freshwater and saltwater environments. However, regular rinsing with fresh water after saltwater use will help prolong its lifespan.
What is the warranty period for this propeller?
Please refer to the warranty information provided by POLARIS PROPELLER USA, INC. for details on the specific warranty coverage for this product.
