Description
14.75 x 14.5 N4L 1 1/8 Prop | Boat Supply Store
This 14.75 x 14.5 N4L 1 1/8 propeller from Johnson Propeller Co. is engineered to maximize thrust and efficiency for boats requiring a specific blade pitch and diameter. Its robust aluminum construction withstands the rigors of saltwater environments, ensuring sustained performance for offshore fishing expeditions. The 1 1/8 inch shaft bore ensures secure mating with compatible outdrive systems for reliable power transfer.
Key Features
- Maximize Thrust with a 14.75-inch diameter for broad surface area.
- Optimize Engine RPM through a precise 14.5-inch pitch.
- Ensure Secure Fitment with a 1 1/8-inch propeller shaft bore.
- Enhance Durability in marine conditions with robust aluminum alloy.
- Improve Acceleration and top-end speed.
- Reduce Cavitation for smoother operation.
- Designed for Performance applications.
- OEM Quality Construction from a reputable manufacturer.
Specifications
| Product Specifications | |
|---|---|
| Diameter | 14.75 inches |
| Pitch | 14.5 inches |
| Number of Blades | 4 |
| Shaft Bore Diameter | 1 1/8 inches |
| Material | Aluminum |
Who This Is For
This propeller is designed for boat owners seeking to replace or upgrade their existing propulsion system with a specific size and pitch for optimal engine performance. It is ideal for those prioritizing durability and efficient power delivery in their marine applications.
How It Compares
| Feature | 14.75 x 14.5 N4L 1 1/8 Prop | Mercury Propeller |
|---|---|---|
| Diameter | 14.75 inches | 14.75 inches |
| Pitch | 14.5 inches | 14.5 inches |
| Number of Blades | 4 | 4 |
| Shaft Bore Diameter | 1 1/8 inches | 1 1/8 inches |
| Material | Aluminum | Aluminum |
Common Concerns Answered
Will this propeller fit my specific outboard motor model?
The 1 1/8 inch shaft bore is a standard fitting for many outboard motors, but it is crucial to verify your engine's spline count and propeller shaft diameter to ensure compatibility before purchase. Consult your engine's manual for precise specifications.
How durable is an aluminum propeller in saltwater environments?
This propeller is constructed from a robust aluminum alloy specifically chosen for its resistance to corrosion and wear commonly encountered in saltwater. Regular rinsing with fresh water after use will further extend its operational life.
What is the impact of a 14.5-inch pitch on my boat's performance?
A 14.5-inch pitch is designed to achieve a balance between acceleration and top-end speed. It effectively moves your boat through the water, providing good cruising RPMs for efficient operation, but it's essential to match it to your engine's power band and your vessel's hull design.
Frequently Asked Questions
What does 'N4L' signify in the propeller's description?
'N4L' typically denotes the propeller's series or design characteristics, often relating to its blade geometry and performance profile. Refer to the manufacturer's detailed product documentation for precise interpretations.
How does propeller diameter affect performance?
A larger diameter, such as 14.75 inches, generally increases the amount of water the propeller can move, leading to greater thrust and improved low-speed performance. This can be beneficial for heavier boats or towing applications.
What is the benefit of a four-blade propeller compared to a three-blade?
Four-blade propellers often offer improved acceleration and better handling characteristics, especially at lower speeds. They can also reduce vibration and provide a smoother ride due to their increased surface area and blade overlap.
Can this propeller be used for high-speed applications?
While this propeller is designed for performance, its suitability for extreme high-speed applications depends on the specific boat, engine, and hull type. The combination of 14.75-inch diameter and 14.5-inch pitch is optimized for a broad range of performance needs.
What is the typical lifespan of an aluminum propeller?
The lifespan of an aluminum propeller is influenced by usage conditions, maintenance, and material quality. With proper care, including regular inspection for damage and corrosion, and avoiding impacts with submerged objects, it can last for many seasons.
