Rubex HR3 (13.9 x 19″) Solas RH Propeller, 9451-139-19
Introduction
When performance matters, the Rubex HR3 (13.9 x 19″) Solas RH Propeller, 9451-139-19 delivers the power, efficiency, and smooth handling marine enthusiasts demand. Designed for mid-to-high horsepower outboards, this 3-blade stainless steel propeller combines high rake and aggressive cupping to enhance acceleration, top-end speed, and fuel economy. Whether you’re into weekend cruising, watersports, or offshore fishing, this prop provides the durability and thrust required to take your marine adventures further.
Built by industry-leading manufacturer Solas, the Rubex HR3 series is known for precision, corrosion resistance, and a modular hub system that reduces vibration and simplifies maintenance. The 13.9-inch diameter and 19-inch pitch configuration are optimized for balance and speed across a wide variety of boats and load conditions.
Overview / What Is Rubex HR3 (13.9 x 19″) Solas RH Propeller, 9451-139-19?
The Rubex HR3 9451-139-19 is a high-performance, right-hand rotation stainless steel propeller designed for outboard engines in the 90–140 horsepower range. It’s part of the Rubex 3 series, featuring three precisely designed blades that maximize water grip and minimize slippage. The blade geometry incorporates a high-rake angle and advanced cupping for powerful thrust and enhanced lift, making it ideal for heavier boats or those needing quicker planing and better top-end speed.
This propeller is built using Solas’ proprietary squeeze-casting process, which ensures tighter grain structures and a smoother surface for greater strength and reduced drag. It’s designed to work with the Rubex interchangeable rubber hub system, making installation and replacement quick and user-friendly.
Design Advantages of Rubex HR3 (13.9 x 19″)
Compared to traditional aluminum props, the Rubex HR3 (13.9 x 19″) offers greater resilience and superior hydrodynamic performance. The stainless steel composition resists flexing under heavy loads and maintains blade shape even after prolonged usage in high-speed and high-pressure scenarios.
The high-rake design lifts the boat’s bow, reducing hull resistance and improving planing speed. This results in better fuel efficiency and enhanced control in choppy waters. The 19″ pitch is well-suited for boats aiming for higher cruising speeds without over-revving the engine, making it ideal for offshore fishing boats, center consoles, and performance hulls.
How to Install Rubex HR3 13.9 x 19 Solas Propeller
Installing the Rubex HR3 9451-139-19 is simple, especially with its user-friendly interchangeable hub system. Follow these steps for optimal installation:
- Remove the cotter pin and propeller nut from your existing prop.
- Slide the old propeller off the shaft and clean the propeller shaft thoroughly.
- Insert the appropriate Rubex hub kit into the new HR3 propeller.
- Align the splines and gently slide the prop onto the shaft.
- Tighten the propeller nut to manufacturer specifications and secure it with a cotter pin or locking tab.
Tip: Always grease the shaft with marine-grade lubricant before installation to avoid future corrosion and ensure easy removal.
Rubex HR3 Propeller Cost and Durability Considerations
While the initial investment for a stainless steel Rubex HR3 propeller may be higher than for aluminum options, the long-term value is unmatched. Its corrosion-resistant structure and squeeze-cast build drastically reduce the risk of blade deformation and cavitation damage. This means fewer replacements and repairs, even in saltwater conditions.
In terms of performance-to-cost ratio, the Rubex HR3 9451-139-19 stands out. It offers smoother rides, increased engine efficiency, and greater top-end control. When compared to other premium stainless props, the Rubex HR3 is competitively priced while still delivering exceptional durability and thrust consistency.
Maintenance Tips
Keeping your Rubex HR3 13.9 x 19″ propeller in peak condition requires only a few proactive steps. Regular maintenance not only extends its lifespan but also helps avoid performance dips caused by damage or debris buildup.
- Rinse thoroughly after use: Especially in saltwater, use fresh water to wash away corrosive residues.
- Inspect for damage: Check for nicks, dings, or wrapped fishing lines after each trip.
- Grease the shaft: Prevent seizing or rust by applying marine grease during prop installation.
- Check hub condition: Periodically remove the prop and inspect the rubber hub for signs of wear.
- Balance and alignment: Have your propeller balanced annually by a marine prop shop if you notice vibration.
Adhering to these maintenance tips ensures your Rubex HR3 continues to provide optimal performance season after season.
Expert Advice and Pro Recommendations
For boaters looking to optimize their mid-to-high HP outboard setup, the Rubex HR3 (13.9 x 19″) is frequently recommended by marine mechanics and performance specialists. Its ability to maintain consistent RPM and torque even under load makes it a reliable choice for both recreational and commercial applications.
It’s also an excellent upgrade for those switching from aluminum to stainless steel, offering measurable improvements in acceleration, top-end speed, and fuel efficiency. Pro installers often point to its interchangeable hub design as a major advantage when adapting to different engine brands or swapping props quickly.
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Detailed FAQ Section
What type of boats are best suited for the Rubex HR3 9451-139-19?
The Rubex HR3 13.9 x 19″ is an ideal match for boats equipped with 90–140 HP outboard motors, particularly those that prioritize higher cruising speeds, fast planing, or heavy loads. This includes center consoles, sportfishers, pontoon boats, and deck boats. If your vessel demands high thrust with minimal slippage, this propeller is designed to deliver exactly that. Be sure to verify pitch and rotation requirements for your specific setup.
How does the interchangeable hub system work?
The Rubex HR3 utilizes Solas’ unique interchangeable rubber hub system, which allows you to adapt the same propeller to multiple engine brands simply by swapping the hub kit. This design not only simplifies installation and future upgrades but also helps reduce vibration by cushioning the drivetrain. If the hub wears out, you can replace just that component without needing to buy a new propeller—saving money over time.
What makes this propeller more durable than aluminum props?
The HR3 9451-139-19 is made from squeeze-cast stainless steel, which is denser and more resistant to impact damage than aluminum. This material resists flex under high RPM and load conditions, helping maintain blade geometry and reducing cavitation. It also withstands saltwater corrosion better, making it suitable for offshore and coastal operations. If longevity is a concern, stainless steel is a must-have upgrade.
Is a 19” pitch suitable for my engine?
Pitch directly affects engine RPM and boat speed. A 19” pitch like the one in this HR3 model is ideal for engines that are over-revving with lower-pitch props or for boats that aim to improve top-end cruising speed. Before switching, check your engine’s WOT (Wide Open Throttle) RPM range and current pitch. If you’re unsure, consult your owner’s manual or a marine mechanic to ensure proper pitch selection for your specific application.
How often should I replace the hub or propeller?
Under normal conditions and with proper maintenance, the stainless steel Rubex HR3 propeller can last for many years without needing replacement. The rubber hub, however, should be checked annually or if you experience slipping or vibration. Always inspect after impact or excessive cavitation. Keeping a spare hub in your tool kit is a smart move, especially for long trips or offshore runs where marine service may not be immediately available.
Conclusion
The Rubex HR3 (13.9 x 19″) Solas RH Propeller, 9451-139-19 is a proven performer in the world of stainless steel marine propulsion. With enhanced durability, aggressive blade design, and excellent fuel efficiency, it’s a dependable upgrade for any boater seeking speed, control, and thrust without compromise. Whether you’re cruising, towing, or navigating offshore waters, this propeller stands up to the task.
When paired with the right engine and proper maintenance, this Rubex HR3 model will deliver season after season of reliable performance.
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For more helpful marine maintenance guides, check out our article on Rubex HR3 (13.9 x 17″) Solas RH Propeller, 9451-139-17.