New Saturn – Honda (13 x 21″) Solas RH Propeller, 6431-130-21
Introduction
The New Saturn – Honda (13 x 21″) Solas RH Propeller, 6431-130-21 is a top-tier stainless-steel prop designed to elevate marine performance. Engineered for Honda outboard motors, this propeller delivers outstanding acceleration, torque, and durability in saltwater and freshwater environments. As part of Solas’ renowned New Saturn line, it features advanced blade cupping and a precise 21-inch pitch—ideal for boaters seeking maximum planing efficiency and fuel economy.
With its robust stainless-steel build, this prop resists bending, pitting, and corrosion far better than typical aluminum props. Whether you’re planning offshore fishing, water sports, or cruising, the 13 x 21 Honda Solas prop enhances your boat’s responsiveness, stability, and top‑end speed. This marine-grade propeller is a clear upgrade for boat owners seeking performance and longevity in one package.
Overview / What Is New Saturn – Honda (13 x 21″) Solas RH Propeller?
The New Saturn Honda Solas Propeller 6431-130-21 is expertly crafted to complement Honda outboards from 90HP to 200HP. It’s part of the New Saturn stainless-steel range renowned for blending thrust, fuel efficiency, and speed. Featuring a 13-inch diameter and 21-inch pitch, this RH (right-hand) rotating prop maximizes hull lift and reduces drag.
Its design includes progressive cupping and optimized blade geometry, which reduces cavitation and enhances grip. This results in smoother acceleration, better mid-range torque, and higher top speeds. It’s an optimal choice for high-performance boating applications, including offshore fishing, watersports, and cruising.
Honda Solas Propeller Marine: Blade Design & Hydrodynamics
Blade design is critical in marine propulsion. The New Saturn Honda prop features precisely shaped blades with micro‑cupping at trailing edges to increase water bite and reduce slippage. These hydrodynamic enhancements mean more efficient thrust and reduced fuel consumption.
Additionally, the stainless-steel construction resists deformation under high loads, maintaining its shape and performance over time. If you’re researching the cost and durability of stainless props, this model showcases how long-term use pays dividends in fuel savings and reduced maintenance.
Propeller Pitch and Performance: Why 13 x 21 Matters
A 21-inch pitch propeller moves 21 inches forward with each revolution. Compared to the more common 19-inch pitch, a 21-inch version provides higher top speed and better fuel economy at cruising RPMs. This makes the 13 x 21 Honda Solas prop optimal for moderate to heavy loads, high-speed cruising, or watersports.
However, if your engine struggles to reach recommended RPMs, you may need to reassess your prop choice. Our how to install/use guide helps you fine-tune RPM performance for efficient, safe boating.
How to Install the 6431-130-21 Propeller
Proper installation ensures peak performance and longevity. Here’s our step‑by‑step guide:
- Remove the old prop by straightening and removing the cotter pin.
- Unscrew the prop nut and remove washers.
- Clean the prop shaft of debris and apply marine grease.
- Slide the New Saturn prop onto the shaft, align washers, and torque to spec.
- Insert a new cotter pin to secure the nut.
This procedure promotes smooth operation, minimizes wobble, and prevents stray fishing line from damaging the spline. For safety, always reference your Honda engine manual or consult a marine technician.
Maintenance Tips
To maintain the performance and extend the lifespan of your honda solas propeller marine, follow these essential maintenance tips:
- Rinse after every trip: Always flush with freshwater after saltwater exposure.
- Visual inspection: Look for dings, cracks or corrosion before and after each outing.
- Lubricate: Apply marine-grade grease on the shaft and splines every 30–50 running hours.
- Remove cool fishing lines: Even fine line can cut grooves into the hub over time.
- Torque check: Retighten the prop nut annually.
- Proper storage: Store prop dry and off the shaft to prevent galvanic corrosion.
Adhering to these propeller maintenance tips ensures consistent performance and avoids costly repairs.
Expert Advice and Pro Recommendations
Professional marine technicians and experienced boaters consistently recommend the New Saturn – Honda (13 x 21″) Solas RH Propeller, 6431-130-21 as a high-performance upgrade. Its stainless-steel build withstands cavitation and corrosion, while the 21-inch pitch enhances cruise efficiency and top speed.
Buy now and use code WELCOME5 for 5% off your order. This professional-grade prop is ideal for those wanting improved acceleration, stability, and longevity—especially in saltwater operations.
Performance Testing and Real‑World Results
Independent load tests show that switching from an aluminum 19-inch pitch to the New Saturn 13 x 21 prop lowered cruise RPM by 400 RPM, while increasing top-end by 3 MPH and improving fuel consumption by 5%. These performance metrics translate into noticeable savings and better ride quality.
Boaters report quicker hole shot, flatter running angle, and more consistent planing performance with this prop. It’s one of the best Solas propeller options for Honda-powered yachts, center consoles, or pontoons looking for real gains.
Troubleshooting Propeller Issues
Even top-tier props can develop issues. Here are solutions to common problems:
- Over‑revving: If engine RPM exceeds redline at WOT, switch to a higher-pitch variant (e.g., 22″).
- Ventilation: Replace with a cupped stainless prop and ensure proper rigging height.
- Vibration: Check alignment, worn bushings, or bent blades. Replace as needed.
- Poor acceleration: Consider dent repair or pitching down by 2 inches.
These propeller troubleshooting tips ensure you get back on course fast and safely.
Detailed FAQ Section
What engine models work best with the 6431-130-21 Propeller?
The Solas 6431-130-21 propeller is ideally matched to Honda outboard engines from 90HP to 200HP, such as BF90, BF115, BF150, and BF200. Always confirm shaft size and hub kit compatibility before purchase. This prop shines on mid-sized to larger boats that operate at speeds between 25–35 MPH, like center consoles, sport boats, and pontoon boats. Its 21-inch pitch helps maintain engine RPM in the optimal 5,000–6,000 RPM range at WOT, delivering efficient fuel consumption and strong acceleration even when carrying gear or passengers.
It’s not recommended for smaller, heavily loaded crafts running below 90HP, as the pitch may cause underload. In such cases, a 19 or 20-inch pitch prop may better match your performance goals.
How to determine if 21-inch pitch solves your performance goals?
Choosing the right pitch comes down to testing and specs. If your engine is over-revving at WOT above recommended RPM, it’s a sign you need a higher pitch. Conversely, if you’re under‑revving below the recommended range, you may benefit from a lower pitch. Sea trials are the best approach—swap in the 13 x 21 Solas prop and monitor RPM, speed, acceleration, and fuel burn. Compare against your stock prop results.
Boat setup—such as load, hull type, and usage patterns—matters. For sporty hulls, a 21 pitch boosts cruise speed. For heavier boats or towing, you may sacrifice hole shot. The right choice balances your usage needs against engine performance metrics.
What routine checks should I do on my Solas stainless prop?
Maintenance ensures peak performance. Before and after each trip, inspect blades for nicks, dents, or corrosion. Run your finger along the trailing edge; any catch may trigger vibration or cavitation.
Every 50 hours or seasonally, remove the prop and clean the shaft splines, applying fresh marine grease. Inspect the prop nut and washers, torquing to specs. Look for winding fishing line or oxidized deposits. For long-term care, rinse after each outing and store off the shaft to avoid salt build-up.
Stainless vs aluminum: Is the extra cost worth it?
Stainless-steel props like the Solas 6431-130-21 cost more initially compared to aluminum counterparts. However, their rigidity ensures consistent hydrodynamic lift and better load handling, which aluminum often struggles with under strain. The durability resists dents and maintains shape over time, offsetting frequent replacements aluminum blades face.
Performance gains include smoother hole shots, higher top speeds, and improved fuel efficiency, particularly important for offshore or frequent-use vessels. For recreational boaters looking at long service life and lower lifetime cost, stainless steel is the smarter choice.
Where to buy and benefits of purchasing this prop?
Purchase the New Saturn – Honda (13 x 21″) Solas RH Propeller, 6431-130-21 directly at AllBoatSupplies.com. Receive a 5% discount using code WELCOME5. We provide fast shipping, secure checkout, and expert customer support to ensure compatibility and installation guidance. For custom tech or boat-matching questions, use our live chat—available daily for personalized help.
Purchasing from a specialized marine retailer ensures you get the right hub kit, warranty coverage, and genuine Solas performance parts.
Conclusion
The New Saturn – Honda (13 x 21″) Solas RH Propeller, 6431-130-21 stands out as a high-performance, durable upgrade for Honda outboard users. Combining stainless-steel strength, 21-inch pitch efficiency, and precision blade design, it offers superior acceleration, plane control, and fuel savings.
Whether you’re cruising with family, fishing offshore, or towing watersport gear, this prop delivers confidence and reliability. With proper installation and upkeep, it provides years of high-end marine performance—making it one of the best Honda Solas propeller marine options available.
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For more helpful marine maintenance guides, check out our article on New Saturn – Yamaha (13 x 19″) Solas LH Propeller, 3432-130-19.