Description
Volvo Penta 15" x 21" A3r Prop Long Hub | Boat Supply Store
This Volvo Penta A3r propeller, measuring 15 inches in diameter and featuring a 21-inch pitch, is engineered for enhanced propulsion and fuel efficiency in demanding marine environments. Its long hub design effectively dampens vibration, ensuring smoother operation and increased durability. This propeller is an ideal upgrade for boaters seeking optimized performance from their stern drive or inboard engine, particularly those operating in saltwater conditions where robust construction is paramount.
Key Features
- Optimizes thrust for efficient acceleration
- Reduces vibration with long hub design
- Enhances fuel economy through precise pitch
- Constructed for durability in marine conditions
- Ensures smooth operation at various speeds
- Designed for stern drive and inboard applications
- Provides superior grip for confident handling
- Precision engineered for Volvo Penta engines
Specifications
| Product Specifications | |
|---|---|
| Diameter | 15" |
| Pitch | 21" |
| Blade Count | 3 |
| Hub Type | Long Hub |
| Material | Aluminum Alloy A3r |
Who This Is For
This propeller is designed for owners of Volvo Penta stern drive or inboard marine engines who require a direct replacement or performance upgrade. It is suitable for boaters seeking improved acceleration and efficiency for their vessels, particularly those used for cruising or light towing.
How It Compares
| Feature | Volvo Penta 15" x 21" A3r Prop Long Hub | Mercury Marine |
|---|---|---|
| Diameter | 15" | — |
| Pitch | 21" | — |
| Blade Count | 3 | 3 |
| Hub Type | Long Hub | Standard Hub |
Common Concerns Answered
Will this propeller fit my specific Volvo Penta model?
The SKU M854999 is designed for a range of Volvo Penta engines. Always verify your engine's propeller specifications against the product's dimensions (15" diameter, 21" pitch) and consult your vessel's manual or a marine specialist to confirm compatibility.
How does the long hub design benefit my boat?
The long hub is engineered to absorb significant shock and vibration transmitted from the engine, resulting in a quieter, smoother ride and potentially extending the life of your drivetrain components by reducing stress.
Is this propeller suitable for saltwater use?
Yes, this aluminum alloy A3r propeller is constructed with materials and coatings suitable for operation in saltwater environments, offering corrosion resistance and sustained performance.
Frequently Asked Questions
What is the primary advantage of a 3-blade propeller?
A 3-blade propeller generally offers a good balance between top-end speed and acceleration, making it a versatile choice for various boating applications and engine types.
How does propeller pitch affect boat performance?
Pitch refers to the theoretical distance the propeller would move forward in one revolution. A higher pitch (like 21") typically results in higher top speeds but requires more engine power to achieve, while a lower pitch provides better acceleration.
What does 'A3r' signify in the propeller description?
'A3r' denotes the specific aluminum alloy composition and potentially a proprietary design feature used by Volvo Penta, indicating a high-strength, corrosion-resistant material optimized for marine propulsion.
Can this propeller be used with a standard engine mount?
The 'Long Hub' designation indicates a specific hub length and potentially a splined connection compatible with certain Volvo Penta drive units. It is crucial to verify your drive's propeller shaft and hub requirements against this product's specifications.
What is the expected lifespan of this aluminum propeller?
The lifespan of an aluminum propeller is contingent on operational conditions, maintenance, and frequency of use. Proper care, regular inspection for damage or corrosion, and avoiding impacts with submerged objects will maximize its service life.
