5 Best Hydraulic Jack Plate for 115 Hp Outboard: Options Compared

If you own a boat with a 115 hp outboard, you know that fine-tuning your motor’s height can make a huge difference in speed, fuel efficiency, and handling. A hydraulic jack plate lets you adjust on the fly, giving you the edge in shallow water or rough conditions.

This guide reviews five top-rated jack plates suitable for 115 hp motors, from electric models to manual options. We’ll break down each product’s features, strengths, and ideal use cases to help you choose the right one for your setup.

Winibo 8" Electric Hydraulic Jack Plate – One-Touch Control

The Winibo JHP1500 is an excellent choice for your 115 hp outboard, offering a generous 6.69-inch stepless vertical lift with simple one-button operation. Its high-strength 7009 aviation aluminum construction ensures durability while keeping weight manageable. The advanced electrophoresis coating and anodic protection provide superior corrosion resistance, making it ideal for both fresh and saltwater use.

With a massive 7055-pound lifting capacity, this plate easily handles motors up to 150 hp, giving you plenty of headroom. The 8-inch setback helps improve boat performance by moving the motor further aft. You’ll appreciate the effortless adjustment that lets you dial in the perfect motor height for different conditions, whether you’re chasing top speed or navigating shallow flats.

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• Easy One-Touch Control: Features a 17cm/6.69" stepless vertical lift, allowing you to effortlessly raise or lower the motor to its ideal height with just a single button press.
• Superior Corrosion Resistance: Treated with advanced electrophoresis coating and anodic protection, this unit ensures exceptional durability and long-lasting performance even in harsh saltwater environments.
• Strong Load-Bearing Capacity: Massive 3200kg/7055lb lifting capacity to easily handle outboard motors ranging from 10 to 150 horsepower, providing reliable and stable support for a wide variety of boats.
• High-Strength Aviation Aluminum: Built from premium 7009 aviation-grade aluminum alloy with a 15mm/0.59" thick plate, delivering outstanding strength and rigidity while remaining lightweight.
• Rapid 8-Second Full Lift: Equipped with a robust motor that lifts the engine from its lowest to highest position in just 8 seconds, ensuring quick and convenient adjustments on the water.

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Bob's Machine Standard Hydraulic Jack Plate – Durable Steel Build

Bob’s Machine 100-106000 is a rugged hydraulic jack plate built from durable steel, designed to handle engines up to 300 hp and 625 pounds. For a 115 hp outboard, this plate offers more than enough strength and reliability. It provides 7.5 inches of smooth lifting travel, allowing you to fine-tune your motor’s height for optimal performance in various water conditions.

The kit includes everything you need for installation: pump, wiring harness, hoses, control switch, and oil. This all-in-one package simplifies the setup process. While steel construction adds weight, it also delivers exceptional longevity and resistance to impacts. If you prioritize durability and don’t mind a bit of extra heft, this plate is a solid workhorse for your boat.

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• Robust Construction: Crafted from durable Steel for long-lasting performance
• Versatile Compatibility: Suitable for various engine types up to 300 HP and 625 lbs weight
• Smooth Lifting: Provides 7.5 inches of lift for easy outboard motor adjustment
• Easy Installation: Comes with all necessary components including pump, wiring harness, hoses, control switch, and oil
• Dry Pump Location: Remote mount pump stays dry and secure in an internal location, reducing wear and tear

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Winibo 8" Electric Hydraulic Jack Plate – High Capacity 350HP

The Winibo JHP3500 is a high-capacity electric hydraulic jack plate rated for motors up to 350 hp, making it overkill for a 115 hp outboard but still a viable option. It offers 7.5 inches of total vertical lift, with 1.5 inches built-in and 6 inches of adjustable travel. The one-touch control lets you raise or lower your motor effortlessly, adapting to changing water depths or load conditions.

Like its smaller sibling, this model features premium 7009 aviation aluminum and advanced corrosion protection. With a 625-pound lifting capacity, it easily supports your 115 hp motor. The 8-inch setback can improve boat handling and speed. If you plan to upgrade to a larger motor later, this plate gives you future-proofing without sacrificing current performance.

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• Easy One-Touch Control: Features 7.5" total vertical lift (1.5" built-in + 6" adjustable travel), allowing you to effortlessly raise or lower the motor to its ideal height with just a single button press.
• Superior Corrosion Resistance: Treated with advanced electrophoresis coating and anodic protection, this unit ensures exceptional durability and long-lasting performance even in harsh saltwater environments.
• Strong Load-Bearing Capacity: Massive 625 lbs lifting capacity to easily handle outboard motors up to 350 horsepower, providing reliable and stable support for a wide variety of boats.
• High-Strength Aviation Aluminum: Built from premium 7009 aviation-grade aluminum alloy with a 15mm/0.59" thick plate, delivering outstanding strength and rigidity while remaining lightweight.
• Rapid 8-Second Full Lift: Equipped with a robust motor that lifts the engine from its lowest to highest position in just 8 seconds, ensuring quick and convenient adjustments on the water.

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T-H Marine CMC PL-65 Hydraulic Jack Plate – Compact & Versatile

The T-H Marine CMC PL-65 is a compact hydraulic jack plate designed for V-6 motors and smaller, making it a perfect match for your 115 hp outboard. It offers 5 inches of vertical travel, plus 1.5 inches of adjustment on both the motor bracket and transom bracket, giving you a total of 8 inches of potential height change. This flexibility allows you to fine-tune your motor position precisely.

Built without welds or castings, the PL-65 is exceptionally strong and resistant to breakage. It’s suitable for both fresh and saltwater use, thanks to its corrosion-resistant materials. The compact design keeps weight low and installation straightforward. If you value adjustability and a proven design from a trusted brand, this plate delivers reliable performance without unnecessary bulk.

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• Ideal for fresh and salt water use
• No welds or castings to break
• The PL-65 is rated for V-6 motors and smaller
• 5" of vertical travel with 1.5" of adjustment on the motor bracket and 1.5" of adjustment on the transom bracket

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On The Fly Manual Jack Plate – Quick Adjust for Small Motors

The On The Fly Manual Jack Plate is a fast, manual option designed for outboards up to 30 hp, so it’s not directly suitable for a 115 hp motor. However, it’s worth mentioning for those with smaller auxiliary engines or lighter setups. It allows on-the-water adjustability, letting you raise or lower your motor in seconds without tools.

Made from high-grade marine aluminum, this plate is built to last and comes with a 3-year warranty on the housing. While it won’t handle the weight of a 115 hp outboard, it’s an excellent choice for smaller boats or kicker motors. If you need a budget-friendly, lightweight solution for a secondary engine, this manual plate is a great fit.

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• Fastest manual jack plate on the market – Raise and lower your motor in seconds with quick and easy adjustments to make your boating experience effortless.
• On-the-water adjustability – Make changes to your motor position at any time, even while on the water. Quickly adapt to any situation and make the most of your time on the water.
• Ideal for a wide range of boats – Supports up to 30hp motors without factory trim and tilt.
• Durable design – Made with high-quality materials and construction, this jack plate is built to last. Enjoy peace of mind with a 3-year warranty on the housing and 1-year warranty on the jack.
• Simple installation – With included DIY instructions, installation is quick and easy. Whether you're a seasoned boater or a DIY enthusiast, this jack plate is designed for effortless installation.

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Buyer’s Guide: What to Consider

Choosing the right hydraulic jack plate for your 115 hp outboard involves a few key factors. Here’s what to consider to make an informed decision.

• Lift Capacity: Ensure the jack plate's lifting capacity exceeds your motor's weight. For a 115 hp outboard, look for at least 300-400 lbs capacity for safety and reliability.
• Setback Distance: Setback moves the motor further from the transom, improving handling and speed. Common setbacks are 6-8 inches. Choose based on your boat's design and performance goals.
• Vertical Travel: More vertical travel gives you greater adjustment range. For most 115 hp setups, 5-7.5 inches of lift is sufficient to optimize motor height for different conditions.
• Material & Corrosion Resistance: Aluminum is lightweight and corrosion-resistant, ideal for saltwater. Steel is stronger but heavier. Look for coatings like anodizing or electrophoresis for extra protection.
• Ease of Installation: Some jack plates come as complete kits with pumps, hoses, and switches. Others require separate purchases. Consider your mechanical skill level and available tools before choosing.

Conclusion

Selecting the best hydraulic jack plate for your 115 hp outboard depends on your priorities. If you want electric convenience and corrosion resistance, the Winibo JHP1500 is a top pick. For rugged durability, the Bob’s Machine steel plate is hard to beat.

For most 115 hp owners, the Winibo JHP1500 or T-H Marine PL-65 offer the best balance of features and performance. Consider your boat type, typical water conditions, and budget to make the right choice. Any of these options will help you get the most from your outboard.