Monohull Bow + Stern Thrusters - Sideshift Bow Thrusters and Stern Thrusters
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Monohull Bow + Stern Thrusters

Sideshift’s externally mounted bow and stern thrusters are easy to mount, with no holes below the waterline. They’re the ideal solution for any V-hull boat including cruisers, sports boats, wakeboats, sailboats, trawlers, and catamarans.

Powerful and Easy to Install

No matter what weather you’re in, Sideshift is there to help guide your boat home safely and easily, every time. Our pivot point advantage and unique prop-in-water design deliver stronger, more immediate performance for an installed cost of up to 50% lower than conventional tunnel thruster systems. In stressful docking situations where seconds count, Sideshift delivers the performance you need.

Sideshift’s family of Monohull Bow and Stern Thrusters are perfect for all boats from 20’ to 60′ in length. They mount easily on the bow or stern of cruisers, sport boats, sailboats, catamarans, trawlers and more. No expensive 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.

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

Monohull Bow & Stern Thrusters

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 bow and stern thrusters are anti-foul painted and anode-protected to prevent corrosion.

Maneuver with confidence into even 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.

Model # Bow or Stern Boat Length  
SS230 Bow 20′ – 35′ (6.1 – 10.7m) VIEW PRODUCT
SS340 Bow 30′ – 45′ (9.1 – 13.7m) VIEW PRODUCT
SS350 Bow 40′ – 60′ (12.2 – 18.3m) VIEW PRODUCT
ST340 Stern 20′ – 45′ (6.1 – 13.7m) VIEW PRODUCT
ST350 Stern 40′ – 60′ (12.2 – 18.3m) VIEW PRODUCT
ST350D Stern 50′ – 70′ (15.2 – 21.3m) VIEW PRODUCT
ST230-OB Outboard Stern 20′ – 35′ (6.1 – 10.7m) VIEW PRODUCT
ST340-OB Outboard Stern 30′ – 45′ (9.1 – 13.7m) VIEW PRODUCT
ST350-OB Outboard Stern 40′ – 60′ (12.2 – 18.3m) VIEW PRODUCT



Sideshift bow and stern thrusters are perfect for any boat from 20′ – 60′ in length. Our external thrusters have several key advantages and features, including:

  • Lower installed cost than conventional tunnel thrusters
  • Powerful 3500 RPM motor with prop-in-water for instant response
  • Drag-free when your boat is on plane
  • Whisper quiet
  • No tunnel or holes below waterline

All-Inclusive Kit

Sideshift bow and stern thrusters are sold as a complete kit. Everything you need is included except the power source. (Some stern installations require an extension or optional mounting bracket.)

Sideshift thruster kits include:

  • 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