Rubex NS3 (13.5 x 15″) Solas LH Propeller, 9432-135-15

Introduction

The Rubex NS3 (13.5 x 15″) Solas LH Propeller, 9432-135-15 is a game-changing marine propeller designed for serious boaters who demand peak performance, long-term durability, and precision control. Built with stainless steel and Solas’ advanced propeller technology, this left-hand rotating prop is tailored for dual-engine applications or boaters requiring specific handling characteristics. Whether you’re fishing offshore, cruising the coastline, or towing watersport enthusiasts, the Rubex NS3 LH delivers consistent thrust, fuel efficiency, and reduced cavitation for a smoother ride.

Its stainless steel construction makes it ideal for both freshwater and saltwater environments, ensuring long-term resistance against corrosion and wear. With a pitch of 15 inches and a 13.5-inch diameter, it strikes the perfect balance between torque and top speed for outboard marine engines.

Overview / What Is the Rubex NS3 (13.5 x 15″) Solas LH Propeller?

The Rubex NS3 LH 9432-135-15 is part of Solas’ high-performance stainless steel series designed to deliver exceptional performance and reliability for outboard boats. This specific model is engineered for left-hand (counter-clockwise) rotation, making it perfect for dual-engine configurations or specialized single-engine applications that require torque balancing or improved steering control.

Its 3-blade design provides fast acceleration and high efficiency while the pitch and diameter combination ensures optimal performance across a variety of boating speeds. The Rubex hub system allows for easy installation and interchangeability, reducing maintenance costs and making it an excellent choice for marine enthusiasts who frequently adjust or upgrade their setups.

Understanding Left-Hand Rotation and Its Advantages

Left-hand rotation propellers, such as the Rubex NS3 (13.5 x 15″) LH, are essential for boats with twin-engine setups where one engine must spin in the opposite direction to the other. This balance reduces torque steer and improves handling, particularly during docking, turning, or rough water conditions.

For certain single-engine configurations, especially on pontoon boats or catamarans, a left-hand propeller can enhance directional stability and offer smoother operation. The NS3 LH’s hydrodynamic efficiency means less fuel burned per nautical mile—something every serious boater appreciates.

Rubex NS3 Stainless Steel Propellers: Key Benefits

• Durable Construction: High-quality stainless steel resists corrosion, chips, and impact damage in all water conditions.
• Advanced Blade Geometry: Designed to minimize cavitation and maximize thrust, resulting in smoother acceleration and cruising.
• Fuel Efficiency: Reduced drag and optimized pitch improve engine efficiency, saving fuel on long rides.
• Replaceable Hub Kit: Uses Solas’ interchangeable hub system for easy swap-outs and installations.
• Precision Manufacturing: Consistent blade pitch ensures even load distribution and better balance under high RPMs.

How to Install the Rubex NS3 (13.5 x 15″) LH Propeller

Installing your new Rubex NS3 propeller is a simple task, especially when using the Solas interchangeable hub system. Here’s a quick guide:

1. Remove the existing propeller by loosening the cotter pin and propeller nut.
2. Clean the prop shaft thoroughly and inspect for any debris or fishing line.
3. Insert the compatible Rubex rubber hub into the NS3 propeller housing.
4. Slide the propeller onto the shaft, making sure the splines align correctly.
5. Secure with the prop nut and reinstall the cotter pin to lock everything in place.

This process can be completed in under 30 minutes with basic tools and is an essential part of how to install Rubex NS3 LH propeller properly.

Best Rubex NS3 LH Marine Propeller Options for Outboards

The NS3 series includes several options tailored to various engine types and boating needs. However, the 13.5 x 15″ model is a standout for mid-range outboards (90–140 HP) offering balanced performance across RPM ranges.

Its pitch delivers strong low-end torque and top-end speed, making it ideal for fishing boats, runabouts, and pontoons. The 13.5-inch diameter helps maintain consistent flow and minimizes cavitation even under heavy load conditions. Boaters looking for the best Rubex NS3 LH marine propeller options should consider this model for its versatility and long-term performance.

Maintenance Tips

Keeping your Rubex NS3 (13.5 x 15″) LH propeller in optimal condition ensures extended service life and top-notch performance. Follow these maintenance tips regularly:

• Rinse After Use: Especially after saltwater exposure, rinse the propeller and shaft with fresh water to remove salt deposits.
• Grease the Shaft: Apply marine-grade grease during installation or after extended use to prevent seizing.
• Check for Damage: Inspect the blades and hub area for nicks, cracks, or dings that may affect performance.
• Remove Fishing Line: Periodically check for and remove any line wrapped around the shaft which can damage seals.

Routine care like this can help avoid costly repairs and ensure your boat runs efficiently across all water conditions.

Troubleshooting Performance Issues with NS3 LH Propellers

Even the best marine propellers can run into performance issues due to improper installation or wear and tear. If you notice issues like unusual vibration, reduced speed, or poor fuel efficiency, consider the following:

• Inspect for Cavitation: Small pitting on blades may indicate excessive cavitation, reducing thrust.
• Check Pitch Accuracy: Ensure the pitch suits your engine’s RPM range—using the wrong pitch can cause over- or under-revving.
• Examine the Hub: A worn or cracked hub insert can lead to slippage under load.

Learning proper Rubex NS3 LH marine propeller troubleshooting ensures you diagnose issues quickly and keep your boat performing at its best.

Expert Advice and Pro Recommendations

Marine pros agree: the Rubex NS3 (13.5 x 15″) Solas LH Propeller is a top-tier upgrade for serious boaters who want a blend of power, control, and resilience. Its left-hand rotation supports specialized setups and delivers real improvements in handling and fuel economy.

If you’re upgrading from aluminum or worn-down stainless steel, the NS3 LH offers unmatched consistency across all water types. For best results, pair it with a matching Rubex hub kit for your specific engine brand and horsepower.

Buy now: Rubex NS3 (13.5 x 15″) Solas LH Propeller, 9432-135-15 and use coupon code WELCOME5 at checkout for 5% off.

Detailed FAQ Section

What are the advantages of a left-hand rotation propeller like the NS3 9432-135-15?

Left-hand (LH) propellers spin counter-clockwise and are most commonly used in twin-engine setups to counteract torque steer and improve directional control. In boats with specific hull designs or unique steering needs, an LH prop like the Rubex NS3 can enhance handling, especially in docking situations or when navigating tight turns. The 9432-135-15 model, with its stainless steel build and performance-focused geometry, is perfect for maintaining stability and acceleration in such configurations.

How does the Rubex hub system work with this propeller?

The Rubex NS3 LH propeller is designed to use Solas’ interchangeable rubber hub kit. This means you can install the same propeller body across different engines by simply swapping out the hub insert. This system reduces the cost of ownership and simplifies repairs or upgrades. It also absorbs vibrations, enhancing overall ride quality. Always ensure you use the correct hub kit for your engine make and model when installing the propeller.

Can I install the Rubex NS3 (13.5 x 15″) propeller myself?

Yes! Installation is simple and can typically be done in under 30 minutes with standard tools. You’ll need to remove your existing prop, clean the shaft, insert the appropriate hub into the NS3 housing, and secure the propeller using the prop nut and cotter pin. Make sure to apply marine grease during installation to prevent shaft corrosion and future removal difficulties. Refer to your engine’s manual for torque specs and hub compatibility.

What kind of performance can I expect with this model?

The Rubex NS3 LH 13.5 x 15″ propeller offers strong low-end acceleration and respectable top-end speed for mid-sized outboards. It’s especially effective when paired with engines from brands like Yamaha, Mercury, Suzuki, and Honda in the 90–140 HP range. You’ll notice reduced cavitation, better fuel economy, and improved handling. Many boaters report quicker hole shots and smoother transitions at cruising RPMs with this setup.

How often should I inspect or replace the propeller?

Inspect your propeller visually after every trip for damage or fishing line entanglement. A more thorough inspection every 20–30 hours of engine time is recommended, especially in rocky or shallow areas. Stainless steel props like the NS3 last longer than aluminum, often surviving multiple seasons with minimal wear. However, if you detect increased vibration, reduced speed, or unusual engine load, check the propeller immediately for signs of damage or imbalance.

Conclusion

The Rubex NS3 (13.5 x 15″) Solas LH Propeller, 9432-135-15 is an industry-leading choice for boaters seeking a stainless steel upgrade that combines performance, efficiency, and durability. With left-hand rotation for enhanced torque control and a rugged stainless steel build, it’s built to handle both freshwater and saltwater conditions with ease.

Whether you’re navigating challenging currents, cruising with family, or heading offshore for sportfishing, this propeller will deliver smooth, efficient propulsion and long-term value. Backed by Solas engineering and precision, it’s an investment every serious boater should consider.

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For more helpful marine maintenance guides, check out our article on Rubex L3 Plus (15.75 x 21″) Solas LH Propeller, 9572-158-21.