Does your 90 horsepower Mercury 2-stroke engine feel a little sluggish? Or maybe you’re looking to squeeze every last knot of speed out of your boat? Choosing the right propeller for your Mercury 90hp 2-stroke can make a world of difference, but it’s also a tricky puzzle. There are so many numbers and types of props out there, it’s easy to feel lost.
Getting the propeller wrong means you might not get the best performance. Your boat could be slow to plane, burn too much fuel, or even strain your engine. But don’t worry! We’re here to help you navigate this sea of choices. By the end of this post, you’ll understand what makes a propeller work for your specific boat and how to pick the perfect one.
Let’s dive in and discover how the right prop can transform your time on the water.
Our Top 5 Prop For 90 Hp Mercury 2 Stroke Recommendations at a Glance
Top 5 Prop For 90 Hp Mercury 2 Stroke Detailed Reviews
1. VQPROPs 48-77344A45 OEM 13 1/4 x17 Pitch Upgrade Aluminum Propeller fit Mercury Outboard Engines 60-115 HP
Rating: 8.8/10
Upgrade your Mercury outboard engine with the VQPROPs 48-77344A45 propeller! This aluminum propeller is designed to fit Mercury Outboard Engines from 60 to 115 HP. It features a 13 1/4 inch diameter and a 17 pitch, perfect for improving your boat’s performance. With 15 spline teeth, it’s built for a strong connection. This propeller comes in a sleek black color and includes an interchangeable hub kit, making installation a breeze. Get ready for better speed and efficiency on the water!
What We Like:
- What We Like: Excellent quality with great paint and speed. It’s an OEM replacement for Mercury Outboard Engines 40-140HP. The propeller is made of high-quality aluminum, making it very strong. It helps your engine last longer and saves fuel. You’ll get better speed and save money! The propeller looks exactly like the pictures. It fits your boat well and is simple to install. Quality and performance are guaranteed, and you can return it for free if you’re not happy. They promise to answer any questions within 24 hours.
What Could Be Improved:
- What Could Be Improved: While the propeller offers great performance, some users might prefer more color options. The durability is excellent, but for extreme conditions, some might consider stainless steel.
This VQPROPs propeller is a solid choice for anyone looking to boost their boat’s performance and efficiency. It offers a great balance of quality, price, and ease of use for your Mercury outboard.
2. Rareelectrical New Stainless Steel Propeller Compatible with Mercury 2 Stroke 15 Spline 90 40-150 Hp for Years 1978-2006 by Part Number 1431-140-11 Diameter 14 Pitch 11 Blades 3 Spline Tooth 15 Right
Rating: 9.1/10
Boost your boat’s performance with the Rareelectrical New Stainless Steel Propeller. This propeller is designed for Mercury 2-stroke engines, specifically those with 15 splines and ranging from 40 to 150 horsepower, covering model years 1978 through 2006. Its robust stainless steel construction ensures durability, while the 14-inch diameter and 11-inch pitch offer a good balance for various water conditions. With 3 blades and 15 spline teeth, it’s built for a right-hand rotation, providing efficient power transfer.
What We Like:
- Made from strong stainless steel for long-lasting use.
- Designed for a wide range of Mercury engines from 1978-2006.
- Replaces specific OEM part numbers, ensuring compatibility.
- Offers a good balance of diameter and pitch for various boating needs.
- Compatible with Chrysler/Force and Mariner brands as well.
What Could Be Improved:
- Fitment is crucial; always verify your original part number.
- This is an aftermarket part, so ensure it meets your specific requirements.
This Rareelectrical propeller is a solid option for upgrading or replacing your current boat propeller. Make sure to check your existing part number to guarantee a perfect fit for your Mercury outboard.
3. 13 X 19 Aluminum Propeller Prop w/complete hub 40 60 90 75 115 125 hp bigfoot Mercury Mariner Outboard Marine replaces 48-77346A45
Rating: 8.5/10
Looking for a new propeller for your Mercury or Mariner outboard? This 13 X 19 aluminum propeller is designed to give your boat a boost. It’s a 3-blade prop that fits many Mercury and Mariner engines, from 40 HP all the way up to 125 HP. It’s a great replacement for part number 48-77346A45. Plus, it comes with a complete hub kit, so you have everything you need to get it installed. This kit includes a sleeve, washer, nut, lock washer, and adapter for an easy setup.
What We Like:
- This propeller fits a wide range of Mercury and Mariner outboard engines, including the popular Bigfoot models.
- It’s a direct replacement for a specific Mercury part number (48-77346A45), making it easy to know if it’s the right fit for your boat.
- The included hub kit has all the necessary parts to install the propeller, saving you a trip to the store.
- The aluminum construction is strong and should hold up well in different water conditions.
What Could Be Improved:
- While aluminum is good, some boaters prefer stainless steel for extra durability.
- The specific fitment details, like “Fits All Years” for the 40-60hp Bigfoot, might need double-checking for older or very specific models.
This propeller offers a good balance of performance and value for many Mercury and Mariner owners. It’s a solid option for those looking to replace their current prop or upgrade.
4. NOVINO 14 X 21” RH Outboard Propeller for Mercury Engine 135-300HP 2 & 4-Stroke & Mercruiser Sterndrives Alpha/Bravo One
Rating: 8.9/10
Rev up your boat’s performance with the NOVINO 14 x 21” RH Outboard Propeller! This 4-blade aluminum beauty is designed to give your Mercury engine a serious boost. It fits a wide range of Mercury outboards from 135 to 300HP, and also works with Mercruiser Alpha/Bravo One sterndrives. If you’re looking to replace your OEM#48-8M0084496, this propeller is a fantastic option.
What We Like:
- This propeller is made from tough, corrosion-proof aluminum, so it will last a long time.
- It helps your boat move faster and use less fuel.
- The propeller makes your boat accelerate quicker and can even increase your top speed.
- Installation is pretty straightforward with the included hub kit.
- It’s a great replacement for damaged or worn-out propellers.
What Could Be Improved:
- It’s super important to double-check your engine’s details (diameter, pitch, rotation, OEM number, year, and HP) before buying to make sure it’s the right fit.
This NOVINO propeller is a solid upgrade for your Mercury engine or Mercruiser sterndrive. It’s built to last and designed to improve your boating experience.
5. YOUNG PROPS 14 X 21 Replace OEM#48-8M0084496 Outboard Boat Propeller for Mercury Engine135-300HP 2 & 4-Stroke & Mercruiser Sterndrives Alpha/Bravo One
Rating: 9.5/10
Upgrade your boat’s performance with the YOUNG PROPS 14 X 21 Outboard Boat Propeller. This 4-blade aluminum propeller is designed for Mercury engines from 135-300HP, including 2 & 4-stroke models, and Mercruiser Sterndrives Alpha/Bravo One. It’s a great replacement for OEM part #48-8M0084496, offering a 14-inch diameter and 21-inch pitch with a right-hand rotation and 15 teeth.
What We Like:
- Excellent Performance: This propeller helps your boat reach better speeds and accelerates smoothly, making your boating trips more enjoyable.
- Durable Build: Made from tough alloy-aluminum, it’s built to last and reduces wear on your engine.
- Fuel Efficiency: It helps your engine run more efficiently, saving you money on fuel.
- Easy Installation: The propeller comes with all the necessary hub kits and hardware, making it simple to install on your boat.
- Quality Guarantee: YOUNG PROPS backs this propeller with a 12-month warranty against blade fracture and bush slipping, giving you peace of mind.
What Could Be Improved:
- Limited Engine Compatibility: While it fits a wide range of Mercury engines, it’s not universal for all boat brands.
- Requires Proper Installation: While the kit is included, incorrect installation could lead to issues, so following instructions is key.
This YOUNG PROPS propeller is a solid choice for Mercury engine owners looking for improved performance and durability. It offers a great balance of quality and value for your marine adventures.
Choosing the Right Prop for Your 90 HP Mercury 2-Stroke: A Buyer’s Guide
Your Mercury 90 HP 2-stroke outboard is a workhorse. To get the most out of it, you need the right propeller. This guide will help you understand what to look for so you can make a smart purchase.
Key Features to Look For
When you’re shopping for a prop, pay attention to these important features:
- Diameter: This is the distance across the circle the propeller makes when it spins. A larger diameter can give you more “bite” in the water. This helps with pushing heavier loads or getting on plane faster.
- Pitch: Pitch is how far the propeller would move forward in one full rotation if it were screwing through a solid. A higher pitch means the prop “grabs” more water. This can lead to higher top speeds. A lower pitch helps with acceleration and lifting heavier boats.
- Number of Blades: Most Mercury 90 HP 2-stroke outboards come with a 3-blade propeller. These are a good all-around choice. Some boats might benefit from a 4-blade prop. Four blades can offer better acceleration and a smoother ride.
- Cup: This is a small lip on the trailing edge of the propeller blades. A cup helps the prop “grip” the water better. It can reduce “slippage” (when the prop spins without moving the boat forward effectively). This can also help with steering.
- Material: Propellers are usually made of aluminum or stainless steel.
Important Materials
The material of your propeller affects its strength, durability, and price.
- Aluminum: This is the most common material for propellers. Aluminum props are affordable and lighter. They can bend or break if they hit something hard, which can protect your engine’s lower unit.
- Stainless Steel: Stainless steel props are much stronger and more durable than aluminum. They are less likely to bend or break. This makes them a better choice for rough conditions or if you often run in shallow water. However, they are more expensive.
Factors That Improve or Reduce Quality
Several things can make a propeller perform better or worse.
- Blade Design: The shape and rake (the angle of the blades) of the propeller matter. A well-designed prop can improve efficiency and performance. Poorly designed props can cause vibration and reduce speed.
- Balance: A balanced propeller spins smoothly. An unbalanced prop can cause vibrations. Vibrations can damage your engine over time and make your ride uncomfortable.
- Condition: A damaged propeller, even with nicks or bent blades, will not perform well. It can reduce speed, hurt fuel economy, and cause vibrations. Always check your prop for damage.
User Experience and Use Cases
The best propeller for you depends on how you use your boat.
- Cruising and Light Loads: If you enjoy leisurely cruising or carrying light loads, a standard 3-blade aluminum prop with a moderate pitch is often a good choice.
- Skiing and Tubing: For pulling water skiers or tubers, you need good acceleration. A prop with a lower pitch or a 4-blade prop can help get your boat on plane quickly and keep it there.
- Heavy Loads or Rough Water: If you often carry heavy loads or boat in rough water, a stainless steel prop can offer better durability and performance. A larger diameter can also help push heavier loads.
- Top Speed: If your main goal is top speed, a higher pitch prop might be what you need. However, you should make sure your engine can handle the higher RPMs.
Frequently Asked Questions (FAQ)
Q: How do I know what size prop my Mercury 90 HP 2-stroke needs?
A: Check your boat’s owner’s manual or the propeller currently on your engine. It will usually have the diameter and pitch listed.
Q: Can I use a different pitch prop than what I have now?
A: Yes, you can. Changing pitch affects your boat’s performance. A higher pitch increases top speed but reduces acceleration. A lower pitch improves acceleration but lowers top speed.
Q: What’s the difference between a 3-blade and a 4-blade prop?
A: A 3-blade prop is common and offers a good balance. A 4-blade prop usually gives better acceleration and a smoother ride, but might have a slightly lower top speed.
Q: Is stainless steel really better than aluminum?
A: Stainless steel is much stronger and more durable. It resists damage better, but it costs more. Aluminum is cheaper and can protect your engine if it hits something.
Q: How often should I replace my propeller?
A: Replace your propeller if it’s damaged, bent, or has significant nicks. A damaged prop hurts performance and can harm your engine.
Q: Will a different prop affect my fuel economy?
A: Yes, it can. The right prop can improve fuel economy by letting your engine run at its most efficient speed. The wrong prop can decrease it.
Q: What does “cupped” mean on a propeller?
A: A cupped propeller has a small lip on the edge of the blades. This helps the prop grip the water better, reducing slippage and improving steering.
Q: Should I buy a prop online or from a local dealer?
A: Both have advantages. Online can offer more selection and better prices. Local dealers can offer expert advice and help with installation.
Q: Can I change the propeller myself?
A: Yes, changing a propeller is a common DIY task. You’ll need a wrench and possibly a prop nut wrench. Make sure the engine is off and in neutral.
Q: How do I find the right propeller if I don’t know the specs?
A: Consult your Mercury outboard manual. You can also ask a marine mechanic or experienced boaters for recommendations based on your boat type and how you use it.
In conclusion, every product has unique features and benefits. We hope this review helps you decide if it meets your needs. An informed choice ensures the best experience.
If you have any questions or feedback, please share them in the comments. Your input helps everyone. Thank you for reading.