Description
13.7 x 19.5 N4L Prop | Boat Supply Store
This N4L propeller from Johnson Propeller Co., Inc. is engineered to optimize thrust and efficiency for specific outboard engine applications. Its 13.7-inch diameter and 19.5-inch pitch are precision-tuned to translate engine rotational force into forward momentum, crucial for maintaining consistent speeds during offshore trolling or navigating shallow Texas flats. The robust construction ensures durability under demanding operational loads, making it a critical component for reliable marine propulsion.
Key Features
- Optimizes Thrust for efficient power transfer from your engine.
- Precise Pitch of 19.5 inches for sustained cruising speeds.
- Durable Construction withstands rigorous marine environments.
- 13.7" Diameter designed for specific engine performance curves.
- N4L Series denotes advanced blade geometry for enhanced efficiency.
- Direct Replacement for compatible outboard motor configurations.
- Engineered for Performance in varied water conditions.
- Reduces Cavitation for smoother operation and sustained power.
Specifications
| Product Specifications | |
|---|---|
| Diameter | 13.7 inches |
| Pitch | 19.5 inches |
| Blade Count | 4 |
| Hub Size | 1 1/8 inches |
Who This Is For
This propeller is ideal for boaters seeking to fine-tune their outboard motor's performance and efficiency. It's suited for vessels that require precise pitch for optimal planing speeds and sustained cruising.
How It Compares
| Feature | 13.7 x 19.5 N4L Prop | Quicksilver |
|---|---|---|
| Diameter | 13.7 inches | — |
| Pitch | 19.5 inches | — |
| Blade Count | 4 | 3 |
| Hub Size | 1 1/8 inches | 1 inch |
Common Concerns Answered
Will this propeller fit my current outboard?
Verification of the 1 1/8 inch propeller shaft size and the specific outboard engine model compatibility is crucial for a correct fit. Consult your engine's manual or our fitment guide.
How does a 4-blade propeller differ from a 3-blade?
A 4-blade propeller generally offers improved acceleration, better hole shot, and reduced vibration compared to a 3-blade, often at the cost of a slight decrease in top-end speed.
Is this propeller suitable for saltwater use?
The N4L series is constructed with materials engineered to resist corrosion common in saltwater environments, ensuring longevity and consistent performance.
Frequently Asked Questions
What is the significance of the N4L designation?
The N4L designation signifies a specific blade design and airfoil shape developed by Johnson Propeller Co., Inc. for enhanced hydrodynamic efficiency and reduced drag.
How does propeller pitch affect boat performance?
Propeller pitch determines the distance the propeller would move forward in one revolution. A higher pitch like 19.5 inches generally allows for higher top speeds but requires more engine power to achieve and maintain.
What is the primary advantage of a 13.7-inch diameter?
A 13.7-inch diameter is optimized to match the torque and horsepower output of specific outboard engines, ensuring efficient blade loading and preventing engine over-revving.
Can I use this propeller for wakeboarding or tubing?
The 4-blade design with its emphasis on acceleration and strong hole shot makes this propeller a suitable option for watersports that require quick planing and consistent power delivery.
What is the typical lifespan of an aluminum propeller?
With proper maintenance, including regular inspection for damage and corrosion, an aluminum propeller can provide several seasons of reliable service, depending on operational hours and environmental conditions.
