The ST350 Stern Thruster is perfect for monohull style boats up to 60' in length, houseboats up to 80' in length, and up to 30 tons in displacement; the unit mounts to the underside of a horizontal surface like a swim platform, or to a vertical surface such as a transom. No tunnel or motor inside the hull is required. All mounting holes are above the waterline. Mounting to a vertical surface like a transom can easily be done with the optional stern mounting bracket. Offering an immediate response with its powerful water cooled 24V motor, the heavy-duty 8" aluminum propellers quickly pull the boat quietly and smoothly.Saltwater proven, the thruster is anode protected and finished in acrylic enamel paint over epoxy primer to prevent corrosion.
And for boats with existing bow thrusters, you can add our dual wireless joystick option for easy single-handed operation of both thrusters, providing true 360 degree control in any situation.
Sideshift stern thrusters are sold as a complete kit. Everything you need is included except the power source. Our stern thruster kits include:
Stern Thruster with Motor & Props
Installation Kit with all Hardware
10’ Motor Wiring Harness
Installation Manual
Motor Controller
Wireless Joystick
Key Fob
Sideshift ST350 Stern Thruster 24v DC - Black Frequenty Asked Questions:
Q. Are Sideshift thrusters suitable for UK boats and marinas? A. Yes. Sideshift thrusters are ideal for UK coastal and inland waterways, especially in tight marina berths and tidal harbours. Whether you're docking in the Solent or navigating narrow canals, their responsive control and wireless joystick make manoeuvring stress-free. Q. What boat sizes are compatible with Sideshift thrusters? A. Sideshift offers solutions for boats ranging from 20 to 60 feet: SS230 / ST230: 20 Q. Can I install a Sideshift thruster myself? A. Absolutely. Sideshift thrusters are designed for DIY installation with basic mechanical and electrical skills. Each kit includes: Thruster unit, Wireless joystick, Motor controller, Mounting hardware, Fuse, voltage indicator, and sealant. Installation typically takes 6 Q. Do Sideshift thrusters affect boat performance or drag? A. No. When your boat is on plane, the thrusters rise out of the water, creating zero drag. On displacement hulls, they remain submerged but have no measurable impact on speed or handling. Q. How are Sideshift thrusters powered and controlled? A. Sideshift thrusters operate on 12V or 24V DC, depending on the model. Control is via a wireless joystick or key fob, using 2.4GHz ISM band for reliable signal. No internal wiring runs are needed, saving hours of installation time. Q. Are Sideshift thrusters suitable for saltwater use? A. Yes. All Sideshift units are saltwater-proven, featuring: Epoxy primer + anti-foul paint, Anode protection, Rugged aluminium and stainless steel construction. They're built to withstand UK coastal conditions and require minimal maintenance. Q. What maintenance is required for Sideshift thrusters? A. Maintenance is minimal: Replace anodes annually, Inspect shaft seals every 3 Q. What are common troubleshooting tips for Sideshift thrusters? A. If your thruster isn't responding: Check battery voltage under load, Inspect fuse and motor controller, Ensure no obstructions (ropes, debris) around props, Confirm wireless pairing with joystick or key fob. Sideshift offers detailed manuals and unlimited phone support for UK customers. Q. Is there a warranty and UK-based support for Sideshift thrusters? A. Yes. Sideshift offers a 2-year limited warranty, with extended support available via authorised UK dealers like CactusNav. We provide expert advice, installation guidance, and after-sales service to ensure your thruster performs flawlessly.
