Struggling with poor boat performance and high fuel consumption with your 90 HP Mercury 2-stroke outboard? Your outboard might not be the problem; the problem is your propeller.
Selecting the best prop for 90 HP Mercury 2 stroke is not only upgrading your vessel but also the ultimate key to unlocking the best speed, excellent fuel efficiency, and smooth rides.
Choosing the wrong propeller holds back your boat’s performance and strains the engine. However, the right propeller unlocks Mercury’s true potential and gives you the perfect balance of power and efficiency.
In this Mercury 90 HP 2-stroke propeller review, we’ve done the hard work for you. We’ve analyzed expert opinions and reviewed real customer experiences to bring you the top-rated propellers that truly deliver results.
Therefore, please keep reading as we reveal the top-rated propellers for the 90 HP Mercury 2-stroke, backed by expert insights and real user reviews!
How to Choose the Best Prop for 90 HP Mercury 2 Stroke?
Selecting the best prop for 90 HP Mercury 2 stroke is one of the most important decisions for improving speed, fuel efficiency, and overall performance.
But with so many factors, choosing the perfect one can feel overwhelming. Don’t worry! We’ll break it down in a way that’s simple and easy to understand.
1. Material: Aluminum vs. Stainless Steel Prop for 90 HP Mercury
One of the first decisions you’ll face is choosing between an aluminum or stainless steel propeller. Here are their features:
Aluminum Propellers
- Lightweight and more affordable.
- Puts less strain on the engine.
- Widely available.
- Easier to repair if damaged.
- Less durable than stainless steel.
- Flex at high speeds.
Stainless Steel Propellers
- Stronger and more durable.
- Better performance at high speeds.
- Smoother acceleration.
- More precise engineering.
- Heavier than aluminum.
- More expensive.
Which one is better?
If you want good performance and speed within a budget, then an aluminum propeller for your 90 HP Mercury 2-stroke is a great choice. However, if you want maximum performance, durability, and top speed, a stainless steel one is worth the investment.
2. Blade Count: 3-Blade vs. 4-Blade – Which Is Right for You?
Another key factor when choosing a propeller replacement for a 90 HP Mercury 2-stroke is the number of blades.
3-Blade Propellers – Best for speed and fuel efficiency
- Faster top-notch speed.
- Less drag improves fuel economy.
- Ideal for lightweight boats and general-purpose boating.
4-Blade Propellers – Best for control and acceleration
- More grip in rough waters.
- Quicker acceleration.
- Ideal for heavier boats, pontoons, or water sports.
Which should you choose?
If you prioritize speed and fuel economy, go with a 3-blade propeller. If you need better acceleration, stability, and rough-water performance, a 4-blade is your choice.
3. Best Pitch for 90 HP Mercury Propeller: Why Diameter Matters
When choosing a Mercury 90 HP 2-stroke propeller, pitch and diameter together determine the speed, acceleration, and prop efficiency.
- Pitch refers to how far the propeller moves in one full rotation.
- Diameter is the total width of the propeller from one blade tip to another.
Lower Pitch (13” – 15”) & Larger Diameter
- Ideal for heavier boats ( big fishing boats or pontoons)
- Faster acceleration.
- Works marvelously in rough water.
Higher Pitch (17” – 19”) & Smaller Diameter
- Fast class speed.
- Excellent for cruising.
- Balances power with fuel economy.
- Ideal for lightweight boats.
- Glides effortlessly on calm water.
Which should you choose?
For most propeller replacements for a 90 HP Mercury 2-stroke, a 17” pitch with a well-matched diameter offers the best balance of speed, efficiency, and performance. However, if you need stronger takeoff power, a 15” pitch with a slightly larger diameter is a great choice.
4. Boat Type Considerations: Finding the Right Fit
The ideal propeller for your 90 HP Mercury 2-stroke depends on the type of boat you own:
Fishing & Bass Boats
- Go with a 3-blade stainless steel propeller.
- Priority: Speed and fuel efficiency.
- Recommended pitch: 17” – 19”
Pontoon Boats & Heavy Boats
- Use a 4-blade aluminum propeller.
- Priority: Stability and power.
- Recommended pitch: 13” – 15”
Speedboats & Recreational Boats
- Best with a 3-blade stainless steel propeller.
- Priority: Top speed and smooth handling.
- Recommended pitch: 17” – 19”
The Top 4 Best Propellers for 90 HP Mercury 2-Stroke
After extensive research, real customer reviews, and expert opinions, we’ve compiled the best aftermarket propellers for Mercury 90 HP.
1. Turning Point Hustler Aluminum Propeller 14 X 13 3-Blade– Best Overall
The Turning Point Hustler Aluminum Propeller is a high-performance propeller for Mercury 90 HP. It’s designed to maximize speed and efficiency.
Built with tuned venting and precision engineering, this propeller delivers faster acceleration and stronger mid-range power. It’s an excellent choice for boaters looking for an affordable yet powerful option.
Performance
The Turning Point Hustler Aluminum propeller offers strong all-around performance, combining excellent acceleration, top-end speed, and fuel efficiency.
Its squeeze-cast aluminum build ensures better stiffness and durability than standard cast props, while the tuned blade geometry enhances lift and reduces slip.
Ideal for 40 – 150 hp engines, it performs well across various hull types. It’s especially effective in improving hole shot and mid-range handling without the higher cost of stainless steel.
Key Features
- Durable aluminum construction for long-lasting performance
- High rake blade design for improved speed
- Tuned venting system for quicker acceleration
- Ideal for lightweight boats
- Compatible with both Mercury 90 HP 2-stroke & 4-stroke outboards
Why We Picked It?
This propeller offers the best balance of price, durability, and performance. It’s a fantastic option for boaters wanting a reliable upgrade without breaking the bank.
2. Mercury BlackMax Propeller 12.3 x 21 – Best OEM Choice
The Mercury BlackMax Propeller is an OEM (Original Equipment Manufacturer) propeller. It’s made specifically for Mercury 90 HP 2-stroke and 4-stroke outboards.
With a classic 3-blade aluminum design, it offers smooth performance, great fuel economy, and easy installation.
Performance
The Mercury Black Max is a well-balanced aluminum propeller designed for reliable performance across a wide range of recreational boats.
Ideal for lighter vessels and moderate conditions, it’s a cost-effective option that includes the Flo-Torq II hub for easy installation.
However, being aluminum, it’s less suited for heavy loads or rough water compared to stainless steel. Overall, it’s a dependable choice for everyday boating needs at a competitive price.
Key Features
- 3-blade aluminum design for balanced speed and acceleration
- Lightweight yet durable for fuel-efficient performance
- OEM Mercury propeller for perfect fit and compatibility
- Reduces engine strain
Why We Picked It?
It’s perfect for general-purpose boating and one of the top-rated choices for Mercury 90 HP owners for the ultimate balance between power and performance.
3. SOLAS Amita 4-Blade Aluminum Propeller 14.8 x 15 – Best for Stability & Power
The SOLAS Amita 4-Blade Aluminum Propeller is built for boaters who need better stability, low-end torque, and rough-water performance.
This high-performance and best prop for a 90 HP Mercury 2-stroke features 4 blades for extra grip. It’s ideal for pontoons, heavy boats, and choppy waters.
Its four‑blade design improves low‑ and mid‑speed torque, enhancing control during turns and wake sports.
However, as an aluminum prop, it doesn’t match stainless steel in durability, so it’s less suited for repeated high‑stress, rough‑water, or heavy‑load conditions.
Performance
The SOLAS Amita 4-Blade propeller is built for stability, control, and reliable mid-range power. Its squeeze-cast aluminum construction delivers improved rigidity over standard cast props.
The 4-blade design offers strong stern lift and better handling, especially useful when towing or operating under load. It also provides smoother shifting and reduced vibration thanks to its rubber hub.
However, as with most aluminum props, it’s less suited for heavy loads or rough water compared to stainless steel.
Key Features
- 14.8″ diameter and 15” pitch for faster hole shot and enhanced low-speed control.
- 4-blade design for extra grip and better control in rough water
- Provides smooth acceleration with strong low-end power
- Durable aluminum construction for longevity
- Optimized for heavy boats, pontoons, and stability-focused vessels
Why We Picked It?
This propeller is the best pick for more control, power, and better acceleration in tough conditions. If you often boat in choppy water or need extra power for pontoons and loaded boats, this is an excellent upgrade.
4. Max Motosports Aluminum Propeller 13.25 x 17 – Best Budget Option
Are you hunting for an affordable propeller replacement for a 90 HP Mercury 2-stroke? Then, the Max Motosports Aluminum Propeller is a fantastic budget-friendly choice.
It offers solid durability, smooth operation, and a great fit for Mercury outboards.
Performance
The Max Motosports Aluminum Propeller is designed for outboards in the 50 – 140 hp range. It offers decent acceleration and planing performance, particularly on lighter boats, and comes pre-fitted with a hub for straightforward installation.
However, as a die-cast aluminum prop, it may show variability in quality and is less durable under high stress compared to stainless steel. Best suited for light-duty use in calm to moderate conditions.
Key Features
- 3-blade aluminum design for decent acceleration
- Compatible with Mercury 90 HP 2-stroke & 4-stroke outboards
- Budget-friendly alternative to OEM Mercury propellers
- Easy-to-install direct replacement for the stock propeller
- Great value for casual boating and weekend use
Why We Picked It?
We aimed to pick one affordable yet effective propeller for your Mercury 90 HP, and that’s why we picked Max Motosports Prop. This is a solid choice for casual boating. This product is famous for its exceptional functionality and ensures reliable performance in various conditions.
Quick Comparison Table
Below is a quick comparison of top-rated propellers for your help:
| Propeller Name | Best For | Top Speed | Price |
| Turning Point Hustler Aluminum Propeller | – Speed – Acceleration | High | Check on Amazon |
| Mercury BlackMax Propeller 12.3 x 21 | – General Boating – Replacement | High | Check on Amazon |
| SOLAS Amita 4-Blade Aluminum Propeller | – Stability – Heavy Loads | Moderat | Check on Amazon |
| Max Motosports Aluminum Propeller | – Speed – Fuel Efficiency | High | Check on Amazon |
FAQs
What’s the best pitch for a 90 HP Mercury 2-stroke?
The ideal pitch for a Mercury 90 HP 2-stroke typically falls between 13 to 19 inches. A lower pitch (13-15″) provides better acceleration and hole shot, ideal for heavier boats. A higher pitch (16-19″) increases top speed but may reduce acceleration. Choosing the right pitch depends on your boat type and desired performance.
How do I know when it’s time to replace my propeller?
If you notice visible damage, dents, loss of speed, excessive fuel consumption, and excess vibration, then it’s high time to replace your propeller. A worn-out propeller affects the engine and overall performance.
How do I install a new propeller on my Mercury 90 HP?
Installing a new propeller is simple. The procedure is:
- Remove the old propeller by loosening the nut with a wrench.
- Slide the old propeller off carefully. Make sure to keep the thrust washer in place.
- Apply marine grease to the propeller shaft to prevent corrosion.
- Align and install the new propeller. Make sure the hub fits correctly.
- Tighten the nut securely.
- Test the installation by spinning the propeller by hand before running the engine.
What is the best stainless steel propeller for Mercury 90 HP 2-stroke?
The Boatman 13×19 Stainless Steel Outboard Propeller is an ideal stainless steel propeller for Mercury 90 HP 2-stroke. This propeller offers a good balance between speed and fuel efficiency, providing better durability and performance compared to standard aluminum props.
Final Thoughts
Selecting the right propeller for your Mercury 90 HP 2-stroke is crucial for enhancing speed, fuel efficiency, and overall performance on the water. In this guide, we’ve outlined the top-performing propellers that strike the perfect balance between acceleration, top speed, and durability.
For everyday boating and all-around performance, the Mercury Black Max Aluminum Propeller is the best choice. If you prioritize speed and acceleration, the Turning Point Hustler Aluminum Propeller is ideal for lightweight boats.
For those who need heavy load capacity and stable performance, the SOLAS Amita 4-Blade Aluminum Propeller offers excellent durability and control. Lastly, if you’re searching for the best budget-friendly option, the Max Motosports 3-Blade Aluminum Propeller provides reliable performance at a great value.
Ultimately, choosing the right Mercury 90 HP 2-stroke propeller, considering size, pitch, and material, will upgrade your boating experience. Explore the best options available today and give your boat the upgrade it deserves. Stay safe and enjoy your time on the water!
