PROP NS3 EJ 90-300HP 17L

Introduction

The PROP NS3 EJ 90-300HP 17L for marine is a high-performance stainless steel propeller designed to deliver optimal thrust, acceleration, and fuel efficiency for mid to high horsepower outboard and sterndrive marine engines. Whether you’re navigating inland lakes, coastal waters, or offshore conditions, this propeller ensures smooth and dependable propulsion. Built for 90 to 300HP Evinrude and Johnson engines, the 17-inch pitch and left-hand rotation configuration of the NS3 EJ enhances maneuverability while reducing cavitation and vibration. It’s one of the best marine propellers available for boaters seeking unmatched reliability and strength.

Crafted using SOLAS’s premium materials and cutting-edge hydrodynamic engineering, this propeller improves overall boat handling, offering a perfect blend of power and control for recreational and professional boating activities alike.

Overview / What Is PROP NS3 EJ 90-300HP 17L

The PROP NS3 EJ 90-300HP 17L is a marine-grade stainless steel propeller by SOLAS, known for its durability, anti-corrosion properties, and superior performance. Designed specifically for 90-300 horsepower Evinrude/Johnson outboard engines, this 17-inch left-hand (LH) pitch model fits a wide range of boating applications—from family cruising to competitive fishing and water sports.

This propeller features a 3-blade design, precision-balanced blades, and a high-rake cup for better acceleration, improved grip, and enhanced fuel efficiency. The stainless steel construction ensures long-term resistance to saltwater corrosion and physical wear, making it an ideal choice for both saltwater and freshwater use.

Top Features of PROP NS3 EJ 17L for Marine

• Engine Compatibility: Designed for 90-300HP Evinrude and Johnson outboard marine engines
• Material: High-grade stainless steel with anti-corrosive finish
• Rotation: Left-hand (LH) rotation, ideal for dual engine setups or specific hull configurations
• Performance: Enhanced grip in turns, reduced ventilation, excellent thrust in all RPM ranges
• Fuel Efficiency: Optimized blade geometry for better fuel economy

How to Install PROP NS3 EJ 17L on Your Boat

Installing the PROP NS3 EJ 90-300HP 17L is a straightforward process, especially with a Rubex interchangeable hub system. Here’s a quick step-by-step guide to help you with the installation:

1. Safety First: Disconnect the battery and place wheel chocks under the trailer wheels before starting.
2. Remove the Old Prop: Use a prop wrench to loosen the nut and remove the existing propeller.
3. Inspect the Shaft: Clean the splines and check for fishing line, corrosion, or damage.
4. Install the Hub Kit: If your PROP NS3 EJ is part of the Rubex system, install the appropriate hub first.
5. Mount the New Prop: Slide the PROP NS3 EJ onto the shaft, add washers and torque the prop nut to spec.
6. Secure the Nut: Use a cotter pin or tab washer (as applicable) to lock the nut in place.

Consult your engine manual for torque specs and make sure to retighten after initial use.

Common Troubleshooting for PROP NS3 EJ 17L

If your boat experiences unexpected performance issues after installing the PROP NS3 EJ 90-300HP 17L, these are common areas to investigate:

• Vibration: May be caused by damaged blades or incorrect installation.
• Cavitation: Usually due to improper engine height or hull interference. Adjust motor trim.
• Loss of Speed: Check for marine growth on the hull or propeller and confirm the correct pitch is installed.

For optimal performance, regularly inspect your propeller and address any issues promptly.

Maintenance Tips

To prolong the life and efficiency of your PROP NS3 EJ 17L for marine engines, consider these maintenance practices:

• Rinse After Use: Especially after saltwater boating, rinse the propeller thoroughly with fresh water.
• Check for Dings: Regularly inspect for blade damage or cracks. Even minor imperfections can reduce performance.
• Grease the Shaft: Apply marine-grade grease on the shaft before installation to prevent corrosion and ease future removal.
• Winterize: If storing your boat, remove the prop and store it in a dry location. Protect the shaft with a cover or corrosion inhibitor.

Routine inspections every 25-50 operating hours will keep your prop performing at its peak.

Expert Advice and Pro Recommendations

When choosing the right propeller for your engine, professionals often consider several variables including engine horsepower, hull design, desired RPM, and typical load. The PROP NS3 EJ 90-300HP 17L stands out as a versatile choice for many mid to high HP boats. It offers the perfect balance of acceleration, top speed, and fuel efficiency.

Whether you’re a competitive angler or a recreational cruiser, you’ll benefit from the prop’s durable stainless steel construction, optimized blade geometry, and consistent thrust delivery.

Buy now: PROP NS3 EJ 90-300HP 17L and use code WELCOME5 for 5% off your first purchase.

Detailed FAQ Section

What is the expected lifespan of the PROP NS3 EJ 17L?

The lifespan of a PROP NS3 EJ 90-300HP 17L largely depends on usage frequency, water conditions, and maintenance. In general, a well-maintained stainless steel propeller can last 5–10 years or more. Factors like hitting underwater debris, lack of corrosion protection, or improper installation may reduce longevity. Many users report over a decade of reliable service when adhering to proper care and maintenance practices. Always check the blades for signs of wear, pitting, or cracks after each season to ensure safe operation.

Is the PROP NS3 EJ 17L compatible with other engine brands?

This propeller is specifically engineered for Evinrude and Johnson 90–300HP outboard motors. While similar pitch and diameter models may work with other brands like Yamaha or Mercury, the hub system and spline count are likely different. To ensure compatibility, check your engine model’s propeller specs or consult a propeller fitment guide. Always prioritize matching the hub type and spline alignment to prevent performance loss or damage.

How does a left-hand propeller improve performance?

Left-hand (LH) rotation propellers, like the PROP NS3 EJ 17L, are typically used in dual-engine setups to counteract torque and improve balance. In single-engine boats, LH props can be used when replacing an existing left-hand model or if hull design calls for it. In twin-engine configurations, pairing a LH and RH propeller enhances straight-line tracking, reduces steering effort, and improves overall stability. This counter-rotation setup is especially beneficial for offshore and high-speed vessels that require precise handling in all conditions.

How can I identify pitch issues after installation?

If your boat underperforms after installing a new propeller, you may be dealing with pitch mismatch. Signs include a significant drop in top-end speed, over-revving or under-revving the engine, and poor acceleration. A 17-inch pitch like the PROP NS3 EJ 17L is suitable for general-purpose boating with balanced load and speed. To fine-tune pitch performance, conduct sea trials under normal load conditions and compare RPM against manufacturer-recommended operating ranges. Adjust pitch by 2 inches up or down if needed to correct under- or over-revving.

What are the main benefits of stainless steel over aluminum props?

Stainless steel propellers like the PROP NS3 EJ 90-300HP 17L offer several advantages over aluminum alternatives. They’re significantly more durable, offering better resistance against impact and corrosion. They also provide higher performance due to less flexing at high RPMs. This translates to more responsive throttle control, better fuel efficiency, and faster planing. Although more expensive initially, stainless steel props have a longer lifespan and deliver superior value over time. If you’re boating frequently or in rough conditions, stainless is the premium choice.

Conclusion

The PROP NS3 EJ 90-300HP 17L for marine engines is a top-tier choice for boaters demanding superior performance, durability, and smooth handling. Its stainless steel construction, precision blade geometry, and compatibility with high-horsepower Evinrude/Johnson motors make it a go-to solution for upgrading your boat’s propulsion system. Whether you’re cruising, fishing, or enjoying water sports, this prop delivers uncompromised thrust and fuel efficiency. Don’t settle for less—upgrade to SOLAS quality and experience marine propulsion at its best.

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For more helpful marine maintenance guides, check out our article on New Saturn – Evinrude/Johnson/OMC (14.5 x 15″) Solas LH Propeller, 2532-145-15.