Buy Seakeeper 3

The Seakeeper 3 is suitable for boats between 36 and 39 feet, runs exclusively on 12V DC power and can be installed virtually anywhere on board. Need more information? Contact us now.

$38,100 ( MSRP 2024)

AVG INSTALL COST $17,500

AVG TOTAL COST $55,600

* Not Including applicable Tax, shipping, potential yard and transport fee’s depending on location.

Not sure if you should buy Seakeeper 3 or a different model?

Check out the information below which should help, but if the Seakeeper 3 doesn’t seem to be the correct model for your needs contact us now for help on making the right choice, or look at information on other Seakeepers on our Seakeeper price page.

Seakeeper 3 Grady 336

This Seakeeper 3 is installed under the Helm on a Grady White.

  • Boat size: 36 to 39 feet and up to 10.5 tons (21,000 pounds)

  • Unit weight: 550 lbs (249 kg)

  • Dimensions: 27 inches length, 27 inches width, and 23 inches height

  • Power: The Seakeeper 3 requires a 12VDC power source to operate

  • Warranty: 2 years or 2000 hours or whichever comes first (with option to extend)

  • Max rated speed: 8,450 RPM

  • Angular momentum at max rated RPM: 3,000 N-M-S

  • Anti rolling torque at max rated RPM: 7,853 N-M

  • Spool-up time to max rated RPM: 50 minutes (8,450 RPM)

  • Spool-up time to stabilization: 36 minutes (7,185 RPM)

  • Power consumption spool-up power: 900 Watts Max @ 12 VDC

  • Spool-up power input: 85 Amps Max

  • Operating power: 400 - 900 Watts (Sea State Dependent)

  • DC power input: 12 VDC @ 30-85 Amps