Description
14x21 S3r Prop Sema Polaris Propeller | Boat Supply Store
This 14x21 S3r Prop Sema is engineered to maximize thrust and efficiency for specific outboard engine applications, ensuring optimal performance on the water. Constructed from high-strength stainless steel, it offers superior durability and resistance to cavitation pitting, vital for maintaining consistent hole shot and top-end speed. Ideal for a 21-pitch requirement on vessels commonly found navigating the shallow flats of Galveston Bay, this propeller delivers precise power transfer for a responsive boating experience.
Key Features
- Maximize Thrust for superior hole shot acceleration.
- Optimize Efficiency for improved fuel economy.
- Durable Stainless Steel construction for longevity.
- Engineered Pitch of 21 inches for specific performance.
- Precisely Sized diameter of 14 inches for optimal water grip.
- Cavitation Resistant design to prevent performance degradation.
- Direct Replacement for compatible engine models.
- Enhanced Water Flow for reduced drag.
Specifications
| Product Specifications | |
|---|---|
| Diameter | 14 inches |
| Pitch | 21 inches |
| Blade Count | 3 |
| Material | Stainless Steel |
| Series | S3r Prop Sema |
Who This Is For
This propeller is designed for owners of compatible outboard motors seeking to enhance acceleration and top-end speed, particularly those operating in demanding marine environments. It is ideal for boaters prioritizing precise engine response and sustained performance during varied operational conditions.
How It Compares
| Feature | 14x21 S3r Prop Sema Polaris Propeller | Mercury Propellers |
|---|---|---|
| Diameter | 14 inches | 14.25 inches |
| Pitch | 21 inches | — |
| Blade Count | 3 | 3 |
| Material | Stainless Steel | Stainless Steel |
Common Concerns Answered
Will this propeller fit my outboard motor?
Verify that your outboard motor's specifications match the 14x21 pitch and diameter, along with the splined shaft configuration, for optimal compatibility. Always consult your engine's manual for exact propeller fitment requirements.
How does the stainless steel construction benefit my boat?
The high-strength stainless steel composition provides superior durability against abrasions from marine debris and offers enhanced resistance to corrosion and cavitation, ensuring consistent performance and a longer service life compared to aluminum alternatives.
What is the advantage of a 21-inch pitch?
A 21-inch pitch is engineered to achieve higher top-end speed and improved fuel efficiency at cruising RPMs on vessels that require this specific blade rotation for optimal planing and sustained velocity.
Frequently Asked Questions
What is the recommended RPM range for this propeller?
Consult your outboard motor's operational manual for the specific wide-open throttle (WOT) RPM range recommended for a 21-inch pitch propeller. Proper WOT RPM is critical for engine longevity and peak performance.
How do I determine if a 14x21 propeller is the correct size for my boat?
The correct propeller size depends on your boat's hull type, weight, engine horsepower, and typical load. A 14x21 pitch is generally suitable for engines that require a balance between acceleration and top speed, but consulting a marine performance specialist or your engine manual is advised.
Does this propeller come with a hub kit?
The product listing does not specify if a hub kit is included. Please refer to the product details or contact customer support to confirm the inclusion of a hub kit, which is essential for installation.
What is the difference between S3r Prop Sema and other Polaris propeller series?
The S3r Prop Sema series from Polaris is engineered with specific blade geometries and materials to optimize thrust and efficiency for a targeted range of engine applications, often focusing on enhanced performance characteristics like improved hole shot or top-end speed.
Can this propeller be used in saltwater environments?
Yes, the stainless steel construction of this propeller is highly resistant to corrosion, making it suitable for use in harsh saltwater environments where durability and resistance to the elements are paramount.
