Description
11 3/8 x 12 3-Blade Prop for Polaris | Boat Supply Store
This 11 3/8 x 12, 3-blade aluminum propeller is engineered for efficient power transfer and acceleration. Its A3r blade design is optimized for mid-range RPMs, providing superior thrust for vessels operating in moderate chop or requiring quick planing. Ideal for smaller outboard applications common on bay boats in the Gulf of Mexico.
Key Features
- Optimized for mid-range RPMs
- Engineered for efficient power transfer
- Enhances acceleration and planing speed
- Durable aluminum construction
- Direct fit replacement
- 3-blade design for balanced performance
- Corrosion-resistant finish
- Ensures reliable propulsion
Specifications
| Product Specifications | |
|---|---|
| Diameter | 11 3/8 inches |
| Pitch | 12 inches |
| Blade Count | 3 |
| Material | Aluminum |
| Series | A3r |
Who This Is For
Boaters seeking a performance-oriented, direct replacement propeller for their smaller outboard motor. This prop is suitable for those who prioritize improved acceleration and mid-range efficiency for typical recreational boating.
How It Compares
| Feature | 11 3/8 x 12 3-Blade Prop for Polaris | Mercury Marine |
|---|---|---|
| Diameter | 11 3/8 inches | 11 1/2 inches |
| Pitch | 12 inches | — |
| Blade Count | 3 | 3 |
| Material | Aluminum | Aluminum |
Common Concerns Answered
Will this propeller fit my specific outboard motor?
Verify compatibility using the SKU M3187-3114-12 and consulting your outboard's service manual or our detailed fitment data. This propeller is designed as a direct replacement for many common applications.
How does this aluminum propeller compare to stainless steel options?
Aluminum propellers offer a cost-effective solution and are generally lighter, providing good performance. Stainless steel offers greater durability and resistance to corrosion but comes at a higher price point.
What is the expected lifespan of this propeller?
The lifespan depends heavily on operating conditions, maintenance, and avoidance of submerged objects. Proper care and inspection will maximize its service life.
Frequently Asked Questions
What does the 'A3r' designation signify?
The 'A3r' designation typically refers to a specific blade design profile and performance characteristics engineered by the manufacturer, often indicating optimized performance at certain RPM ranges.
Is this propeller suitable for saltwater use?
Yes, this aluminum propeller is constructed with corrosion-resistant materials and finishes suitable for saltwater environments, provided proper cleaning and maintenance procedures are followed.
What is the significance of the 11 3/8 x 12 dimensions?
11 3/8 inches represents the propeller's diameter, and 12 inches represents its pitch. These dimensions dictate the propeller's thrust and speed characteristics.
Can I use this propeller if my current one has a different number of blades?
While it may physically fit, changing the number of blades can significantly alter your engine's performance and load. It's recommended to match the blade count of your original equipment for predictable results.
What is the primary benefit of a 3-blade propeller over a 4-blade?
A 3-blade propeller generally offers a good balance of top-end speed and acceleration, and it tends to be more fuel-efficient at cruising speeds compared to a 4-blade propeller which prioritizes hole-shot and low-end torque.
