Volvo Penta Dual Rear Stainless Steel (13.9 x 21″) Solas RH Propeller, 8551-139-21
Introduction
If you’re looking to upgrade your boat’s propulsion system for enhanced efficiency, durability, and performance, the Volvo Penta Dual Rear Stainless Steel (13.9 x 21″) Solas RH Propeller, 8551-139-21 is your go-to marine hardware. Crafted specifically for marine enthusiasts who value quality and long-lasting performance, this propeller stands out in the competitive world of stainless steel marine propulsion systems. Designed with cutting-edge engineering, this propeller is optimized for outboard Volvo Penta dual front setups, making it an excellent fit for heavy-duty boating applications.
Not only does this propeller deliver top-tier thrust and improved fuel efficiency, but it also ensures stability and smooth operation across various water conditions. Whether you’re a recreational boater or a seasoned mariner, this prop is built to exceed expectations. Built by Solas, a brand known for precision, this 13.9 x 21” right-hand rotation stainless steel propeller reflects commitment to marine excellence.
Overview / What Is the Volvo Penta Propeller for Marine
The Volvo Penta Dual Rear Stainless Steel Propeller is part of a dual prop system where both front and rear props work in tandem for improved thrust and torque transfer. The “Dual Rear” component refers to the rear-facing propeller in this counter-rotating setup. Designed specifically for Volvo Penta sterndrives, this 13.9 x 21″ stainless steel RH propeller provides excellent grip in water, even during tight turns or high-speed cruising.
The propeller is precision-cast from marine-grade stainless steel, ensuring resistance to corrosion and physical impact. Its right-hand rotation design aligns perfectly with its dual setup for optimal propulsion dynamics. Manufactured by Solas, the product combines Japanese engineering with global standards, making it a top choice in the propulsion category.
Why Choose Stainless Steel Over Aluminum Props?
When it comes to marine propellers, choosing the right material matters significantly. Stainless steel propellers, like the Volvo Penta Dual Rear 13.9 x 21″, outperform aluminum in strength, efficiency, and durability. They retain sharp edges longer, meaning better hydrodynamics and less fuel consumption over time.
Here are key reasons to opt for stainless steel in marine applications:
- Higher Strength: Less prone to bending or breaking under pressure.
- Improved Efficiency: Maintains blade geometry better, offering more consistent performance.
- Longer Lifespan: Ideal for rough or saltwater environments due to corrosion resistance.
Performance Gains: Speed, Acceleration & Control
The 13.9 x 21″ size and right-hand rotation of this Volvo Penta propeller offer a finely balanced mix of speed, fuel economy, and control. The 21″ pitch enables higher top speeds while maintaining enough surface area to deliver quick acceleration from rest. Whether you’re water skiing, cruising, or heading offshore, this prop delivers seamless control.
Unlike standard single props, the dual setup reduces cavitation and increases mid-range thrust. This configuration improves boat handling, especially in sharp turns or when accelerating with heavy loads onboard.
Maintenance Tips
To extend the life and efficiency of your Volvo Penta Dual Rear Stainless Steel Propeller, regular maintenance is essential. Even the highest-quality stainless steel can degrade without proper care, especially in saltwater conditions.
Here are some top maintenance tips:
- Inspect Regularly: Check for dings, cracks, or wear on the blades after every trip.
- Rinse with Fresh Water: Salt and debris can corrode or pit even marine-grade stainless steel.
- Apply Anti-Seize Lubricant: On propeller shaft before installation to prevent corrosion locking.
- Check Hub Integrity: Inspect the rubber hub and replace if you notice slippage or vibration.
How to Install the Volvo Penta Dual Rear Propeller
Installing this propeller correctly ensures optimum performance and safety. Here’s a brief guide:
- Step 1: Secure your boat to prevent movement.
- Step 2: Remove the old rear prop by unscrewing the prop nut and washer.
- Step 3: Clean the shaft and apply marine grease.
- Step 4: Slide the new propeller onto the shaft, aligning the splines.
- Step 5: Reattach the washer and prop nut. Torque to manufacturer’s specs.
Always consult your engine’s service manual for specific torque and installation instructions.
Expert Advice and Pro Recommendations
Marine experts strongly recommend the Volvo Penta Dual Rear Stainless Steel (13.9 x 21″) Solas RH Propeller, 8551-139-21 for users seeking long-term durability and performance. It’s especially ideal for high-speed watercraft, sport fishing boats, and offshore cruisers where precision, speed, and strength matter most.
Pro Tip: Pair this rear prop with the corresponding dual front propeller for maximum efficiency. Also, use the discount code WELCOME5 at checkout to get 5% off.
Cost and Durability of the Volvo Penta Propeller
Though stainless steel propellers cost more upfront than their aluminum counterparts, the return on investment is evident. With enhanced durability, longer service life, and better fuel efficiency, this Volvo Penta Dual Rear Propeller justifies its premium pricing.
Depending on your usage, it may outlast two or three aluminum props — reducing replacement costs and downtime. Also, its high resale value makes it a smart purchase for serious boaters.
Detailed FAQ Section
What is the pitch and why does it matter for marine propellers?
Pitch refers to the distance a propeller moves in one full rotation through water. A 21″ pitch means the propeller moves 21 inches forward per revolution under ideal conditions. Higher pitch propellers generally offer better top-end speed but can reduce acceleration. For the Volvo Penta 13.9 x 21″ prop, this pitch is ideal for maintaining efficient speed while offering good load-handling capacity.
How do I know this propeller will fit my Volvo Penta drive?
This propeller is designed for Volvo Penta outboards and sterndrive systems that use dual propeller technology. Always refer to your owner’s manual or consult a marine technician to confirm spline compatibility, shaft size, and pitch recommendations. You can also contact All Boat Supplies support team for help selecting the exact match.
What are the main benefits of dual propeller systems in marine engines?
Dual propeller systems offer several advantages over single-prop setups. These include increased thrust, reduced cavitation, better acceleration, and improved handling. Because one prop spins clockwise and the other counterclockwise, they cancel out torque-induced steering pull. The Volvo Penta Dual Rear Stainless Steel (13.9 x 21″) Solas RH Propeller complements this system by offering enhanced efficiency and smoother ride.
Can I use this propeller in saltwater conditions?
Yes, the stainless steel material used in this propeller is highly resistant to corrosion and pitting from saltwater. However, regular rinsing with fresh water after use and periodic application of anti-corrosion coatings will significantly extend its lifespan. It’s a robust choice for saltwater and brackish environments.
How do I troubleshoot performance issues with this marine propeller?
If you experience vibration, loss of speed, or irregular noises, inspect the propeller blades for bends, cracks, or marine growth. Ensure the hub is not slipping and the shaft is properly aligned. A visual check after each trip helps catch issues early. You can also consult a marine propeller expert at All Boat Supplies for a diagnostic evaluation.
Conclusion
Choosing the Volvo Penta Dual Rear Stainless Steel (13.9 x 21″) Solas RH Propeller means investing in lasting quality, marine-grade durability, and top-tier performance. Whether you’re chasing speed, reliability, or smooth handling, this propeller is engineered to exceed expectations. Don’t settle for less — elevate your boat’s performance with a prop trusted by marine professionals worldwide.
Special Offer
WELCOME5 – Get 5% off storewide at allboatsupplies.com
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