Seakeeper Gyroscopic Stabilizers
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Series

Open

9 Models • 21' → 40'

Built for families who want serious offshore capability, premium comfort and the freedom to fish, cruise or entertain.

Sportsman 402 center console boat with tower, white hull, and outboard engine in side profile view

Open 402

 White center console fishing boat with hard-top canopy and outboard engine shown in side profile

Open 352

 Blue and white Sportsman center console boat with hard-top, tan seating, and outboard engine shown in profile view

Open 322

 Sportsman 302 center console boat with hard-top and outboard engine in gray and white hull

Open 302

 Sportsman center console boat with hard-top, tan seating, and Yamaha outboard engine shown from starboard side

Open 282

 Light blue Sportsman center console boat with hard-top, tan seating, and Yamaha outboard engine

Open 262

 Sportsman 252 center console boat with turquoise hull, hard-top, and outboard engine in profile view

Open 252

 Sportsman open center console boat with hard-top, outboard engine, and tan seating in blue and white hull design

Open 232

 Blue and white Sportsman center console boat with hard-top, side profile view against white background

Open 212
Series

Heritage

4 Models • 23' → 32'

A refined crossover lineup designed for coastal cruising, ample seating, family days and some fishing when the moment calls for it.

Turquoise and white center console boat with hard-top and outboard motor, shown in side profile

Heritage 321

 Turquoise and white center console fishing boat with hard-top, Yamaha engine, and tan seating viewed from the side

Heritage 261

 Blue and white Sportsman center console boat with hard-top and outboard engine shown in profile view

Heritage 251

 Sportsman Heritage 231 center console boat with hard-top, outboard engine, and tan seating in light blue and white

Heritage 231
Series

Masters

6 Models • 22' → 28'

Shallow-water performance, fishing-focused layouts and everyday comfort built for family life and fishing.

Side profile of a blue and white center console boat with hard-top and outboard engine

Masters 287

 Blue and white Sportsman bay boat with Yamaha outboard engine and T-top against white background

Masters 267

 Blue and white Sportsman center console fishing boat with Yamaha outboard motor and T-top shade structure

Masters 267OE

 SportCraft Masters 247 bay boat with hard-top, Yamaha outboard engine, and tan seating viewed from the side

Masters 247

 Sportsman center console bay boat with hard-top, Yamaha outboard engine, and tan seating viewed from the side

Masters 247OE

 Sportsman 227 bay boat in turquoise and white with T-top, center console helm, and outboard motor in side profile view

Masters 227
Three white Seakeeper gyroscopic stabilization systems in different sizes displayed against gray background

Seakeeper Gyroscopic Stabilizers

Eliminate Boat Roll

At Sportsman Boats, we’ve partnered with Seakeeper to deliver maximum comfort in rough waters. Below, you’ll find details on the Seakeeper models available for our boats. We’ve taken this integration to the next level by designing in a dedicated Seakeeper Pod on models where it’s offered. Please note that while this is a designed-in feature, it is not included as a standard option on any model.

DESIGNED-IN FROM THE START
On models equipped with Seakeeper, we've gone through rigorous engineering to create designed-in pods from the start. We can confidently say we've "designed it in" not "adapted it in." This ensures a seamless fit on every model, verified for optimal placement and the best possible Seakeeper performance.
Installation and maintenance are just as smooth thanks to the large Total Access Compartment.
ELIMINATE BOAT ROLL
The technology inside the Seakeeper system is unlike anything else. It uses a spinning flywheel to create gyroscopic forces that reduce side-to-side boat movement by up to 95%.
This keeps your boat steady, helps prevent seasickness and makes for a more comfortable day on the water for you and your family.
SMALL & LIGHTWEIGHT
The Seakeeper makes a big impact in a compact size. Depending on the Sportsman model you choose, we offer the Seakeeper 1, 2, 3 or 4.5.
All four models are compact and powerful, with the Seakeeper 1, 2 and 3 weighing under 550 lbs and the Seakeeper 4.5 weighing 736 lbs. Each has been carefully accounted for in the boat's center of gravity to maintain peak performance and balance.
Once you feel it, you'll never boat without it.

In Action

SEAKEEPERS FOR YOUR SPORTSMAN

White Seakeeper marine gyroscopic stabilizer system with dimensions and blue interior component visible
Seakeeper 1

The Seakeeper 1 brings advanced stabilization to recreational boats as small as 23 feet. With its flush-mount design, it fits perfectly into your Sportsman and delivers maximum comfort in a compact package.
365 lbs.
26' to 28'
$26,395

Seakeeper 2 marine stabilizer system with dimension specifications showing 20-inch height, 24.8-inch width, and 25.5-inch length
Seakeeper 2

The Seakeeper 3, but smaller. The Seakeeper 2 is 25% lighter and 20% smaller, built to keep your Sportsman steady on the water. It eliminates up to 95% of boat roll so you can relax and enjoy the ride. Ideal for 30’ to 32’ models, the Seakeeper 2 fits perfectly into the designed-in Seakeeper Pod.
414 lbs.
30' to 32'
$43,140

Seakeeper 3 marine gyroscopic stabilizer system with dimensions displayed, showing white housing and mechanical components
Seakeeper 3

The biggest "small" Seakeeper to keep your Sportsman steady on the water. Designed to fit seamlessly into your Sportsman as a built-in feature.
550 lbs.
35'
$61,265

Seakeeper 4.5 stabilization system with dimensions showing 20.98 inches height, 28.05 inches width, and 26.56 inches length
Seakeeper 4.5

Packing even more punch, the Seakeeper 4.5 eliminates roll on boats around 40 to 46 feet in a smaller, lighter package. It delivers 50% more stabilizing power than the Seakeeper 3 and runs on AC power for boats equipped with a generator.
736 lbs.
40'
$88,955

Cutaway view of a spherical gyroscopic stabilization system with internal mechanical components visible

How It Works

Inside the Seakeeper, a vacuum-enclosed sphere, a steel flywheel spins at speeds up to 9,750 rpm. When the boat starts to roll, the Seakeeper tilts, creating powerful gyroscopic torque to port and starboard that counteracts the boat's tilt and roll. Listed below are some of the main features that allow the Seakeeper to operate effectively.

1 - Vacuum Encapsulation

The vacuum enclosure allows the Seakeeper to spin the flywheel three times faster, reduce weight by two-thirds and cut power requirements in half. It also protects the system from the harsh marine environment.

2 - Active Control

The system uses a braking mechanism and smart active control technology to gauge sea conditions and react instantly. You do not need to adjust any settings — the Seakeeper operates fully autonomously.

3 - Cooling System

As heat builds inside the vacuum-enclosed sphere, the Seakeeper uses a proprietary closed-loop cooling system that removes heat through a glycol and seawater combination.

Putting You In Control

The new dash display lets you control your Seakeeper with just the push of a button. Using the dedicated display is simple and easy but it also integrates into your Garmin MFD through the OneHelm app. This will also show important information for maintenance, service, hours and much more.

Seakeeper roll stabilization system displaying -3 degrees roll angle with accompanying wave motion graph
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