Pro L3 (15 x 21″) Solas LH Propeller, 9576-150-21
Introduction
The Pro L3 (15 x 21″) Solas LH Propeller, 9576-150-21 stands out as a high-performance marine propulsion component, specially crafted for serious boaters demanding precision, durability, and superior efficiency. Made with polished stainless steel and engineered with Solas’ cutting-edge design philosophy, this left-hand rotation propeller is ideal for various outboard marine engines. Whether you’re cruising inland waters or taking on offshore excursions, the Pro L3 provides the thrust, control, and responsiveness your boat needs for a smooth ride.
This propeller is part of the Pro L3 stainless steel series, known for enhanced acceleration and outstanding mid-range performance. With a blade diameter of 15 inches and a pitch of 21″, it delivers optimal performance for boats seeking both speed and torque without sacrificing fuel economy or engine longevity. Boaters worldwide trust the Solas brand for its robust construction and hydrodynamic efficiency.
Overview / What Is Pro L3 (15 x 21″) Solas LH Propeller, 9576-150-21?
The Pro L3 (15 x 21″) Solas LH Propeller is a premium, stainless steel marine propeller designed specifically for high-performance boating. Its left-hand rotation (LH) configuration makes it compatible with select marine engines that require counter-rotating props, which are often used in twin-engine setups for better balance and steering control.
Its part number, 9576-150-21, corresponds to its unique Solas design – a 15″ diameter, 21″ pitch, and a precise fitment for multiple outboard models. Its progressive pitch and aggressive rake angle contribute to better acceleration and higher top-end speeds, while also allowing for smoother planing and better cornering control.
Why Choose a Left-Hand (LH) Propeller?
Choosing a left-hand propeller like the Solas Pro L3 9576-150-21 ensures compatibility with marine engines designed for counter-clockwise rotation. LH props are particularly important for dual-engine configurations, as they work in tandem with right-hand props to eliminate torque steering effects, balance thrust, and enhance maneuverability.
In solo-engine setups, LH props are used when the gearbox dictates counter-clockwise rotation. This Solas LH Propeller delivers exceptional control in such configurations, especially when navigating tight docks, reversing, or turning at high speeds.
Top Features of the Pro L3 (15 x 21″) Solas LH Propeller
- Material: Premium stainless steel construction ensures rust-resistance, strength, and long-term durability in saltwater and freshwater environments.
- Diameter & Pitch: 15-inch diameter with 21-inch pitch for optimized speed and acceleration balance.
- Blade Design: High rake angle and aggressive cupping provide better lift and cornering.
- Application: Suitable for high-horsepower outboards and stern drives with LH configuration.
- Performance: Great for high-speed boats, offshore fishing vessels, and sport boats demanding quick response and minimal slip.
Compatible Marine Engines
The Pro L3 9576-150-21 is designed for select outboard engines from major manufacturers like Yamaha, Mercury, Honda, and Suzuki. The hub kit system ensures a perfect fit for:
- Yamaha 150HP to 300HP outboards (with LH configuration)
- Mercury EFI and Verado models
- Honda BF Series 200HP+
- Suzuki DF series with LH lower units
Always check your engine’s shaft specifications and rotation direction before purchasing to ensure compatibility.
How to Install Pro L3 LH Propeller on Your Outboard
Installing the Solas LH Propeller is a straightforward process, especially when using the correct hub kit. Here’s a general guide:
- Ensure the engine is off and in gear.
- Remove the old prop by loosening the prop nut.
- Inspect the prop shaft for debris or damage.
- Slide on the thrust washer, hub kit (if required), and the new Solas propeller.
- Tighten the prop nut and secure it with a cotter pin or locking tab.
Note: Always refer to your engine manual or consult a certified marine mechanic for specific torque requirements and compatibility.
Maintenance Tips
Regular maintenance of your Pro L3 Solas LH Propeller will extend its life and preserve optimal performance. Here are some essential maintenance tips:
- Inspect Monthly: Check for dents, cracks, or bent blades, especially after heavy use or hitting debris.
- Grease the Shaft: Apply marine-grade grease to the propeller shaft to prevent corrosion and seizing.
- Clean the Blades: Remove barnacles, weeds, or corrosion deposits using a non-abrasive cleaner.
- Store Properly: When not in use, remove the propeller and store in a dry, protected place to avoid corrosion or theft.
Following these Pro L3 propeller maintenance tips ensures long-lasting functionality and reliability across seasons.
Expert Advice and Pro Recommendations
Boating professionals frequently recommend the Pro L3 9576-150-21 for vessels that require a strong balance between torque and speed. Its blade geometry allows your boat to plane faster while maintaining top cruising speeds without excessive RPM strain. The stainless steel build provides resistance to flex and distortion under load, giving superior durability compared to aluminum propellers.
Whether you’re fishing offshore or navigating through variable tides, this propeller’s performance characteristics shine through. Consider pairing it with a digital trim system or hydraulic jack plate to maximize thrust and control.
Buy now: Pro L3 (15 x 21″) Solas LH Propeller, 9576-150-21 — Use code WELCOME5 for 5% off.
Detailed FAQ Section
What is the difference between LH and RH propellers?
Left-hand (LH) and right-hand (RH) propellers refer to the direction in which the blades spin. RH props spin clockwise, while LH props spin counter-clockwise. Single-engine boats typically use RH props, but LH props are necessary for certain engines or dual-prop setups to reduce torque steer and improve balance. The Solas Pro L3 9576-150-21 is a LH prop designed for counter-rotating shafts or port-side installations in twin engines.
How do I know if the Pro L3 9576-150-21 fits my engine?
To confirm fitment, check your engine’s rotation direction (LH), shaft size, and horsepower compatibility. The Pro L3 fits most 150–300HP engines with compatible hub systems. Cross-reference your outboard’s make, model, and year with Solas’ compatibility chart or consult with your dealer or All Boat Supplies support for confirmation.
How does a 15 x 21″ pitch affect performance?
The 15-inch diameter gives substantial thrust, while the 21-inch pitch determines how far your boat travels per revolution. A 21″ pitch prop is excellent for higher speeds while maintaining control and fuel efficiency. It’s ideal for mid to large-sized boats needing a balance of acceleration and cruising capabilities. If your RPMs are too high, consider moving to a higher pitch; if too low, shift to a lower pitch.
Can I install the Solas LH propeller myself?
Yes, with basic tools and the right hub kit, most boaters can install the Solas LH propeller themselves. Ensure you have a marine wrench, torque specs, and locking hardware. However, if unsure, it’s wise to have a marine technician install it to avoid shaft damage or misalignment, which could affect performance or safety.
Is stainless steel worth it over aluminum props?
Absolutely. Stainless steel propellers like the Solas Pro L3 offer superior strength, reduced flex under load, and longer lifespan than aluminum. While more expensive upfront, they deliver better performance, especially in high-horsepower and high-speed scenarios. They’re also less susceptible to damage from debris or sandbanks. For serious boaters, stainless steel is a worthwhile investment.
Conclusion
The Pro L3 (15 x 21″) Solas LH Propeller, 9576-150-21 is a stellar upgrade for serious boaters seeking enhanced performance, durability, and control. With its advanced blade design, corrosion-resistant stainless steel build, and compatibility with major marine engines, it delivers where it counts — on the water. Whether you’re upgrading from aluminum or replacing an older LH prop, the Pro L3 offers unmatched value and reliability.
Don’t compromise on performance — choose Solas and navigate with confidence.
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For more helpful marine maintenance guides, check out our article on Rubex L3 Plus (16 x 13″) Solas LH Propeller, 9572-160-13.