New Saturn – Mercury (12 x 9″) Solas RH Propeller, 5331-120-09
Introduction
The New Saturn – Mercury (12 x 9″) Solas RH Propeller, 5331-120-09 is an exceptional marine propulsion solution tailored for performance, efficiency, and durability. Designed for Mercury outboards, this right-hand rotating propeller is built from high-quality stainless steel and is part of the popular Solas New Saturn series, making it ideal for recreational boating, fishing, and light commercial use. If you’re looking for a propeller that delivers optimum thrust, long-lasting performance, and reliable operation in various marine conditions, the Solas 12 x 9″ RH propeller is a premium choice.
Whether you’re upgrading or replacing an existing prop, this model provides excellent fuel efficiency, minimal vibration, and improved handling. It’s specifically engineered to reduce slippage, increase top speed, and enhance your vessel’s overall responsiveness on the water.
Overview / What Is New Saturn – Mercury (12 x 9″) Solas RH Propeller?
The Solas New Saturn series is renowned for delivering consistent performance, and the 5331-120-09 model is no exception. Measuring 12 inches in diameter with a 9-inch pitch, this propeller is designed for Mercury outboard engines that require right-hand (RH) rotation. The propeller’s three-blade configuration and stainless steel construction offer a powerful combination of strength and precision. It’s built to resist corrosion and endure high torque loads, even in saltwater environments.
This Solas 12 x 9″ RH propeller is ideal for applications where improved low-end torque and acceleration are crucial. It’s perfect for boats that carry heavy loads, tow water sports equipment, or operate in shallow or weed-filled waters. Whether you’re a weekend angler or a water enthusiast, this prop ensures smooth, controlled movement with enhanced fuel economy.
Key Features of the Solas 12 x 9″ RH Propeller
The Solas 5331-120-09 propeller comes packed with features that make it one of the top-performing options for Mercury outboard engines:
- Durable Stainless Steel: Resistant to corrosion, ideal for freshwater and saltwater use.
- 3-Blade Design: Optimized for balance, thrust, and smooth acceleration.
- Right-Hand Rotation: Perfect for standard Mercury outboards with RH setup.
- 12″ Diameter x 9″ Pitch: Great for increased hole shot and low-end torque.
- Part Number: 5331-120-09 – engineered to Solas’ stringent quality standards.
Each blade is finely crafted to reduce cavitation and improve water grip, resulting in improved throttle response and top-end performance. This propeller also has a rubber hub to dampen vibration and reduce stress on your lower unit.
Performance Benefits of a 12 x 9 Propeller
The 12 x 9 size configuration makes this Solas propeller particularly effective in delivering thrust and maintaining control at lower speeds. Boats that prioritize towing, trolling, or maneuvering in tight spaces benefit immensely from this pitch-diameter combo.
Performance advantages include:
- Better Acceleration: Enhanced hole shot helps boats plane faster.
- Increased Load Handling: Works well under heavier loads without bogging down.
- Reduced Slippage: More consistent contact with water even during aggressive turns.
- Fuel Savings: Efficient thrust means reduced engine strain and better mileage.
Maintenance Tips
Maintaining your Solas 12 x 9″ RH propeller ensures its performance remains optimal for years. Follow these maintenance tips to extend its life and protect your marine investment:
- Rinse After Use: Especially after saltwater outings, rinse the propeller with fresh water to remove salt and debris.
- Inspect for Damage: Check blades for dents, cracks, or signs of corrosion regularly.
- Grease the Shaft: Apply marine-grade grease to the prop shaft to prevent seizing or corrosion.
- Check for Fishing Line: Remove any fishing line or debris wrapped around the shaft immediately.
Regular inspection not only improves efficiency but also helps avoid unexpected failures during a trip. Periodic removal and reinstallation of the prop allow for a full inspection of the hub and key components.
How to Install the Solas 5331-120-09 Propeller
Installing this Solas propeller is straightforward, especially if you’re replacing an older Mercury RH model. Here’s how:
- Turn off the engine and disconnect the battery for safety.
- Use a wrench to remove the prop nut and washers from the old propeller.
- Slide the old prop off the shaft carefully.
- Grease the shaft with marine lubricant.
- Install the Solas 12 x 9″ propeller, placing washers and nut back in position.
- Tighten securely and reinstall the cotter pin.
Make sure the prop rotates freely before reconnecting the battery and testing in the water. If you’re unsure, consult your Mercury engine manual or hire a professional marine technician.
Expert Advice and Pro Recommendations
Marine experts often recommend the New Saturn – Mercury (12 x 9″) Solas RH Propeller, 5331-120-09 for boaters who need high torque performance and responsive maneuverability. It’s especially useful for:
- Small fishing boats
- Inflatables or tenders with Mercury outboards
- Boats operating in narrow, obstacle-prone waters
- Recreational users seeking better fuel economy
Pro Tip: Combine this propeller with regular outboard servicing and the use of high-grade fuel to maximize both power output and lifespan.
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Detailed FAQ Section
What boats are compatible with the Solas 12 x 9 RH propeller?
The Solas 12 x 9 RH propeller is ideal for a wide range of Mercury outboard-powered boats, especially those in the 25-70 HP range. It’s commonly used on aluminum fishing boats, inflatables, skiffs, and lightweight cruisers. The 12″ diameter allows for higher torque and better control in shallow or weed-filled waters, while the 9″ pitch offers powerful acceleration. Before purchase, always cross-reference your engine’s recommended propeller specs or consult your marine mechanic to ensure compatibility.
How does this propeller improve fuel efficiency?
This Solas propeller is designed for optimal water displacement, meaning less energy is wasted. The blade geometry and stainless steel material allow for cleaner slicing through water, which reduces resistance and lowers fuel consumption. For boats operating at low to medium speeds, this translates into better miles per gallon and less frequent refueling. Combined with regular engine maintenance, the 5331-120-09 can significantly improve overall fuel economy.
Can I replace my aluminum propeller with this stainless steel one?
Yes, you can replace an aluminum propeller with the stainless steel Solas 12 x 9. Stainless steel props are more durable, resistant to dings and bends, and offer better long-term performance. However, because stainless steel is heavier and stiffer, the engine may respond slightly differently. It’s advised to stick with the same pitch and diameter as your aluminum version unless you’re seeking a performance upgrade. Always verify with a marine technician if changing materials.
What maintenance is required for stainless steel marine propellers?
Stainless steel propellers are low-maintenance but still require attention. After every use, especially in saltwater, rinse with fresh water. Periodically remove the prop to check for fishing line around the shaft and apply waterproof grease to the spline. Inspect blades for damage from submerged objects or corrosion. Store your boat properly during off-season months to protect the prop from freezing and impact. Following these practices will keep your propeller performing optimally for years.
How do I know if I need a 12 x 9″ pitch propeller?
Pitch selection depends on how you use your boat. A 9-inch pitch is lower and ideal for boats that need fast acceleration, better towing ability, and quick planing. If your current prop causes the engine to struggle under load or fails to get on plane efficiently, switching to a 12 x 9″ propeller might help. Use a tachometer to monitor RPM at full throttle—if you’re below the recommended RPM range, a lower pitch prop like this is likely the solution.
Conclusion
The New Saturn – Mercury (12 x 9″) Solas RH Propeller, 5331-120-09 is a robust and efficient option for Mercury-powered boats needing reliable low-speed thrust and maneuverability. Its stainless steel construction, balanced design, and precision engineering make it a valuable upgrade or replacement for serious boaters. Whether you’re angling, cruising, or enjoying water sports, this propeller delivers performance that speaks volumes on the water.
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For more helpful marine maintenance guides, check out our article on New Saturn – Mercury (11 x 15″) Solas RH Propeller, 1331-110-15.