PROP SST EJ 90-300HP 17L

Introduction

The PROP SST EJ 90-300HP 17L stainless steel propeller is an industry-trusted choice for serious boaters who demand performance, power, and precision. Built to support marine engines ranging from 90HP to 300HP, this left-hand rotation propeller combines high-strength materials with expertly engineered geometry to deliver excellent hole shot, top-end speed, and fuel efficiency. Whether you’re navigating saltwater bays or freshwater lakes, the PROP SST EJ 17L is your go-to upgrade for propulsion enhancement and long-lasting reliability.

This propeller is specifically designed to improve acceleration, reduce cavitation, and optimize engine RPM. With a balanced 17″ pitch and finely tuned blade profile, it ensures smooth handling and greater thrust in challenging water conditions. Boaters who are serious about control and durability will appreciate the stainless steel construction and compatibility with a wide range of marine engine models.

Overview / What Is PROP SST EJ 90-300HP 17L?

The PROP SST EJ 90-300HP 17L is a high-quality stainless steel propeller designed to match the needs of boaters operating outboards within the 90 to 300 horsepower range. It features a 17-inch pitch and left-hand (LH) rotation, making it an ideal solution for twin-engine setups or vessels requiring counter-rotation propellers. Its performance-focused design offers a great balance between acceleration and top speed, especially for heavier boats or those used in sport and recreational applications.

The propeller is built from premium stainless steel, making it more resistant to impacts, corrosion, and flex under stress compared to its aluminum counterparts. Its design includes enhanced cupping and blade rake to improve lift and handling. Additionally, it’s compatible with interchangeable hub systems for easy maintenance and adaptability across multiple engine brands, including Yamaha, Mercury, Honda, Suzuki, and others.

Benefits of Using PROP SST EJ for Marine Applications

One of the biggest advantages of using the PROP SST EJ 17L is the overall improvement in boating performance and reliability. It excels in conditions where strength and efficiency matter most. Here’s how this prop stands out:

• Durable stainless steel material ensures long-term reliability in both fresh and saltwater environments.
• Precision-balanced blades offer smooth acceleration and better fuel economy.
• 17-inch pitch provides an optimal blend of thrust and speed.
• LH rotation ideal for counter-rotating or twin-engine configurations.
• Interchangeable hub compatibility for versatile marine engine fitment.

This propeller not only helps with planing your boat faster but also maintains RPM levels efficiently, which means lower fuel costs and less strain on your engine.

How to Install PROP SST EJ 90-300HP 17L

Installing the PROP SST EJ 90-300HP 17L is a straightforward task if you follow proper guidelines. Here are the steps to safely mount it on your marine engine:

1. Ensure the engine is turned off and the key is removed.
2. Remove the existing propeller by unfastening the prop nut and washer.
3. Inspect the shaft and clean any debris, grease the shaft using marine-grade lubricant.
4. Install the compatible hub kit (if required) onto the propeller shaft.
5. Slide the PROP SST EJ 17L onto the shaft, align the splines properly.
6. Secure it with the thrust washer and nut, and torque to manufacturer-recommended specs.
7. Install the cotter pin or locking tab (depending on your engine setup).

Make sure to rotate the propeller manually to confirm it’s seated properly before launching your boat.

Maintenance Tips

Regular maintenance of your PROP SST EJ 17L will prolong its life and preserve performance. Stainless steel propellers are tough, but even they require attention. Here are the top maintenance practices:

• Rinse after use: Always rinse with freshwater after operating in saltwater to remove salt residue that causes corrosion.
• Visual inspection: Check blades for nicks, cracks, or deformation regularly, especially after running aground or hitting floating debris.
• Shaft lubrication: Reapply marine grease on the shaft every few months to prevent rust and ensure easy removal.
• Torque check: Inspect and tighten the prop nut as needed to maintain optimal performance and prevent wobble.

Additionally, store the prop in a dry environment when not in use for extended periods. These small steps will ensure optimal lifespan and uninterrupted boating fun.

Best PROP SST EJ Options for Twin Engines

For boaters with dual-engine setups, choosing the correct pair of left-hand and right-hand propellers is crucial for balanced handling and effective performance. The PROP SST EJ 90-300HP 17L serves as the LH side of your configuration. To complement it, you’ll need the matching RH version from the same EJ series. Together, they improve tracking, reduce torque steer, and give better response while navigating tight turns or docking.

Here’s why the PROP SST EJ 17L is a great choice for twin rigs:

• Offers counter-rotation balance with a matched RH prop
• Reduces steering load at higher speeds
• Enhances cruising stability for larger boats

Pairing LH and RH versions from the same product family ensures consistent pitch, diameter, and hydrodynamic performance across both sides of your vessel.

Expert Advice and Pro Recommendations

Marine experts consistently recommend the PROP SST EJ 90-300HP 17L for boaters seeking an upgrade in both performance and reliability. It’s well-suited for anglers, sport boaters, and leisure cruisers alike. The 17-inch pitch works exceptionally well for heavier boats that require strong mid-range torque without sacrificing top-end performance.

For best results:

• Match the propeller pitch with your engine’s operating RPM range.
• Use the appropriate hub kit recommended by the manufacturer.
• Consult a marine professional if switching from a 3-blade to a 4-blade configuration or vice versa.

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PROP SST EJ 90-300HP 17L

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Detailed FAQ Section

What makes the PROP SST EJ 90-300HP 17L suitable for high-horsepower engines?

This propeller is engineered with a durable stainless steel body that resists flex and damage, even under high loads. The 17-inch pitch and specific blade geometry help optimize power transfer from high-horsepower engines (90–300HP), resulting in smooth acceleration and improved fuel efficiency. Its LH rotation also caters to counter-rotating engine setups, making it highly suitable for twin-engine rigs.

How do I choose the right pitch for my propeller?

Pitch selection depends on your engine’s recommended RPM range and intended boating activity. A 17-inch pitch like the PROP SST EJ offers a balance between acceleration and top speed—ideal for moderate to heavy boats. If your RPMs are too low, a lower pitch prop is better; if your RPMs are too high, consider a higher pitch. Always consult your engine manual or a marine technician when making changes.

How does left-hand rotation benefit twin-engine boats?

In twin-engine configurations, having one engine rotate left and the other right helps balance out torque effects. This results in more stable steering, improved maneuverability, and reduced helm effort. The PROP SST EJ 90-300HP 17L provides the LH rotation necessary to pair with a right-hand version, offering symmetrical thrust and better control, especially in docking or sharp-turn scenarios.

Is stainless steel really better than aluminum for props?

Yes, stainless steel propellers are far superior in strength and longevity compared to aluminum. Stainless props like the PROP SST EJ 17L can handle higher engine horsepower without bending or losing shape. They’re also more resistant to corrosion, impacts, and cavitation. Though pricier upfront, stainless steel options often outperform and outlast aluminum, making them more cost-effective long term.

What should I do if my propeller gets damaged?

If your propeller suffers a nick, crack, or bend, stop using it immediately. Running a damaged prop can cause engine strain, vibration, or lower unit damage. Light damage may be repairable by a propeller repair shop, especially with stainless models like the PROP SST EJ 17L. However, severely damaged blades or imbalances usually warrant full replacement. Always keep a spare propeller onboard in case of emergencies.

Conclusion

The PROP SST EJ 90-300HP 17L is more than just a propeller—it’s a power upgrade for your boat. With its robust stainless steel design, optimal 17″ pitch, and compatibility with a wide range of marine engines, it offers unmatched reliability and performance. Whether you’re upgrading from a stock aluminum prop or enhancing a twin-engine setup, this model is designed to deliver better control, fuel efficiency, and speed on the water. Equip your vessel with the PROP SST EJ 17L and take command of every boating adventure with confidence.

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