About Outboard and Sterndrive Thrusters - Sideshift Bow Thrusters and Stern Thrusters

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Outboard and Sterndrive Thrusters

Sideshift is proud to introduce the marine industry’s first outboard or sterndrive mounted stern thruster! (US Patent 10953974) Finally, an easy-to-install stern thruster solution that attaches directly to any outboard or sterndrive powered boat from singles to multiple engine setups.

Universal Mounting on any Outboard or Sterndrive

The new ST230 Series Stern Thrusters from Sideshift are perfect for any boat up to 40′ in length.  The thruster mounts to the cavitation plate of any outboard motor or I/O for easy in-water installation, and completely eliminates the mounting issues common to most outboard or sterndrive powered boats.  The unique mounting position creates zero drag as the unit rides above water when the boat is on plane. The extreme aft location of the thruster provides a strong pivot point advantage for immediate response in stressful docking situations. When seconds count, Sideshift delivers the performance you need.

No bulky tunnel is required, and our unique universal mounting system requires no holes below the waterline, eliminating the risk of leaks associated with all other types of thruster systems. And when combined with your Sideshift or factory bow thruster, you can add our dual wireless joystick option for easy single-handed operation of both thrusters for true 360 degree control of your boat in any situation.

Did you know that according to BoatUS Insurance, a full 44% of sinkings are a result of failed fittings below the waterline?

Silent and immediate response is provided by our prop-in-water design, 8” aluminum propellers, and heavy-duty water cooled motor. Saltwater proven, our rugged OB Series Stern Thrusters are anti-foul painted and anode-protected to prevent corrosion.

Maneuver with confidence into the tightest slips with a simple touch of the wireless joystick. Step onto the dock while maintaining total control of your boat with our wireless key fob controller.

Shipped as a complete kit with thruster, controller, mounting hardware, wireless joystick, fuse, digital voltage indicator and battery switch, installation takes less than a day.


Features and Benefits

Sideshift ST230 Series Stern Thrusters are perfect for outboard or I/O powered boats up to 40′ in length. Our outboard mounted thrusters have several key advantages and features, including:

  • Universal Mounting On Any Outboard Motor or Sterndrive
  • Easy in-water installation
  • Dual wireless joystick option connects to all existing bow thrusters
  • No Holes Below the Waterline
  • DIY Installation in <1 Day
  • No Space Required Inside the Boat for Tunnel or Motor
  • All Inclusive Kit
  • Rises Out of the Water When Boat Planes – Zero Drag
  • Rugged and Reliable

All-Inclusive Kit

Sideshift ST230 Series Stern Thrusters are sold as a complete kit. Everything you need is included except the power source:

  • Thruster
  • Motor Controller
  • Wireless Joystick
  • Wireless Remote Key Fob
  • Wiring Harness
  • All Mounting Hardware
  • SikaFlex Sealant
  • Fuse/Digital Voltage Indicator
  • Battery Switch

Simply open the box and get started. When you’re finished the installation just connect to a dedicated power source and enjoy a stress-free boating experience!


Sideshift bow and stern thrusters can be installed in less than a day. Conventional thrusters take days to install by a professional. At Sideshift, we make installing your thruster a breeze.

  • Easy, do-it-yourself installation
  • Detailed installation manual, installation videos, and unlimited phone support
  • Can be installed with your boat in the water
  • No holes drilled below the waterline
  • No motor inside the hull
  • Can be installed by any marina or boatyard

Visit our online store to view our full range of thruster products