Hydrofoil Boat Stabilizer - Skeg-Mounted Shield for Motors with Marine Grade Mounting Bracket - Available in 4 Options - Improve Performance, Shield Your Propeller, Protect Marine Life
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Availability:
In Stock.
Arrives
Thursday, Dec 4
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Style: L35
Features
- L35 Compatibility - L35 fits outboards and sterndrives from 100HP-425HP. It is compatible with all Evinrude, Honda, Johnson, MerCruiser, Mercury, Suzuki, Tohatsu, and Yamaha sterndrives on boats over 18 feet. Four different sizes available. Check chart for compatibility. Note: Select the R-size hydrofoil for pontoons up to 26 feet and 115HP.
- Improve Performance - The skeg-mounted L-35 hydrofoil for outboard engines and inboard/outboard sterndrives gets your boat on plane faster, enables it to remain on plane at lower speeds and RPM settings which translates to improved fuel economy at the low & mid RPM settings. Improved handling and enhanced helm control are additional benefits aside from protection for the prop, skeg and lower unit gearing.
- Shield Your Propeller - Our high quality, energy-absorbing thermoplastic compound is designed to reduce damage and costly repairs due to underwater impacts at low and moderate speeds. The included bracket system provides added skeg protection.
- Protect Marine Life - Prevent wildlife death or injury due to propeller strikes. Hydro-Shields attachment to the bottom of your motor leaves manatees, sea turtles, and aquatic grass beds unscathed in the case of contact.
- Easy Installation - This simple, two-step process can be completed in 20 25 minutes. The kit is Made in the USA and includes all of the hardware you need, including marine-grade Stainless Steel bracket system with bolts and lock nuts.
Brand: Hydro-Shield
Color: Black
Material: Stainless Steel
Engine Type: 2 Stroke, 4 Stroke
Recommended Uses For Product: For Outboards or Sterndrives
Brand: Hydro-Shield
Color: Black
Material: Stainless Steel
Engine Type: 2 Stroke, 4 Stroke
Recommended Uses For Product: For Outboards or Sterndrives
Mounting Type: skeg mount
Fuel Type: Gasoline
Maximum Horsepower: 425 Horsepower
Manufacturer: Hydro-Shield
UPC: 196852124244
Item Package Dimensions L x W x H: 15.94 x 10.24 x 2.64 inches
Package Weight: 1.26 Kilograms
Brand Name: Hydro-Shield
Style: L35
Size: L35
Date First Available: September 3, 2022
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Dec 4
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Style: R45
Made a huge difference in my boat. On plane much easier and porpoising has stopped.
Reviewed in the United States on July 4, 2025 by Ronald Lewis
Style: R35
easy to install comes with drillbit, strong material worth every penny, protect your lower end of the boat motor.
Reviewed in the United States on June 26, 2025 by peace an quiet
Style: L35
I must say that I find myself rating only the best or the worst products everything else is just kind of expected when you’re ordering from Amazon. But this product deserves a positive review! First of all I have never had such superior customer service from any company. Dale (I think he may be the owner and/or maybe the inventor or, at minimum, a A++ vested employee) was literally on the phone with me at 7pm on a random Thursday night answering my questions and texting with me so he could review photos of the placement of my install. In a world that begs not to be bothered with trivial questions about products or any extra help after the initial purchase, Dale was a breath of fresh air. He knew exactly what I was asking, exactly how to help and then he even followed up to make sure I was good with everything! 😲😲🤯 So all of that and I haven’t even gotten to how awesome the product is! So I was a little skeptical going in. After all there is a few bad reviews about this thing. I purchased it because I live on a river that has some fluctuations in water level. It’s not bad but it is enough that I have had to replace more than my fare share of props over the last 5 years. I’m not blowing them up daily, but after buying my 4th prop for the boat in 5 years I felt like I should at least look at my options. After having this on my boat for only a week (and probably 16 hours of run time) I can say without a doubt that is working. Obviously the prop is still pristine but that is just the half of it. My boat also has a noticeably faster hole shot, I gained 2-3 mph on my wot without any issues in rpm or cavitation. I can only say good things about this product. If that changes I will repost but for now know that I am thoroughly impressed by this product and the company. And no I was not paid or given this product for this review. Boat info: 1998 Rinker Captiva 232 powered by a 7.4l Mercruiser Thunderbolt with a Bravo 1 outdrive running a 14.5 17p 4 blade prop.
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Reviewed in the United States on July 6, 2024 by George T George T
Style: L35
This was an easy enough install and helped my deckboat with an alpha one throw a better wake for surfing, however, I bumped it into the shore once and now the mounting brackets are bent so that its leaning to the right and it caused the tip of the skeg to snap off where the hole was drilled. The plastic is also very rough now as if someone has taken sand paper to it. It has also robbed about 5mph of top speed from the boat. I need to get new brackets since mine are bent and I dont know what to do about the rough texture of the plastic. Ill probably end up going with a traditional whale tale and stainless skeg protector from here.
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Reviewed in the United States on August 19, 2023 by Cameron P.
Style: R35
I have a 16' boat with 50hp four stroke. With two people a touch heaver nature, the boat had trouble planning out. My brother would have to move to the bow before it would plane out. I installed the Hydro Sheild fairly easily. I used a framing square and 12" ruler to more accurately measure the correct placement. Once mounted we took the boat out and much to my surprise, the boat planed out quicker with both my brother and I than it does that when I'm by myself. Works awesome, I would recommend this to anyone. As for running the boat slower while remaining planed out or fuel saving, I don't know about that. I haven't had e chance to evaluate that yet. Great product!
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Reviewed in the United States on April 29, 2025 by Ryan
Style: R35
Installed it 06/21/25 and went out on 06/22/25. It destroyed my $800.00 prop, $4000.00 gear box, $40 anode and not to mention the nearly $200.00 Hydro-Shield. Not to mention the labor, fluid and whatever else once I start the repair. Do not purchase this thinking it is going to benefit in any way. The least the company should do is reach out to me and try to make things right but I’m not holding my breath. Never even finished the day on the water before disaster struck.
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Reviewed in the United States on June 25, 2025 by Tracy W. Boggs Tracy W. Boggs
Style: R45
The media could not be loaded. I literally cannot believe the change this made in the performance and speed I’m seeing out of my engine! - I had already been impressed with the incredibly durable, quality feel of the shield itself, (not to mention how much better it looks after completely hiding my ugly, scraped up skeg!) but after seeing and experiencing the proof first hand, I’m hands down a believer that this one is going to revolutionize the outboard game! - Install was as simple as you expect! My skeg had a curve to its shape, so I used my clamps to squeeze the middle of the brackets with a wrench between the top of them to “fan” them out just a touch - Measure and Measure again!! - Ensure the front and the back are equal distance from the cavitation plate! And if you need to, use a couple clamps to hold things still! - They instruct you to drill your top rear hole first which is a HUGE help to keep your self on track as you measure one more time before committing to the position! (Totally grateful for that foresight in the design process!) - I hit 18mph with an 8hp four-stroke (to be fair it has a ”9.9” carb) but the fastest I’ve EVER been on that dinghy was MAYBE 10mph for about half a second - (Don’t get me wrong, I love my dinghy, but the planing speed has always been horrible!) - Aside from the speed increase, the smoothness and stability of my turns can’t be given any justice from the video, as it just feels so much better to me than before with the slip being all but gone - I couldn’t begin to praise this one enough! - 15/10 take my money again and again!!
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Reviewed in the United States on August 28, 2024 by Monte
Style: R35
Countersunk bolt- heads is better.
Reviewed in the United States on May 5, 2025 by Bob