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Sideshift ST350 Stern Thruster

Sideshift ST350 Stern Thruster


Part Number:  ST350-W
Brand:  Sideshift
Type:  Stern Thruster


Estimated Delivery Time: 4 to 6 weeks

Sideshift ST350 Stern Thruster

  • Boat size 40'-60'
  • Horsepower 7.5hp
  • Voltage 24 V DC
  • Current 400 Amps
  • Layout Dual Prop

Sideshift’s family of Stern Thrusters are perfect for boats from 20’ to 60 in length. They mount easily to the underside of a horizontal surface like a swim platform, or to a vertical surface such as a transom. They are perfectly suited for trawlers, cruisers, sport boats, yachts, houseboats, pontoon boats, catamarans, and more. No expensive tunnel is required.

Mounted externally to the boat, the rearmost location maximizes turning power and responsiveness for easy maneuvering of narrow waterways and tight corners. Back confidently into a berth with the simple touch of the joystick.

Offering an immediate response with its water-cooled motors, the heavy-duty, 8 aluminum propellers provide quiet and smooth operation. Saltwater proven, the rugged stern thrusters are anode protected to prevent corrosion. They are finished with anti-fouling paint over epoxy primer.

All mounting locations are above the waterline. As a result, the stern thruster can be fitted without the need to take the boat out of the water. Shipped as a complete kit with thruster, controller, hardware and joystick, installation takes around 5-6 hours.

The ST350 External Stern Thruster from Sideshift is perfect for boats up to 60 in length; 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 rugged aluminum and stainless steel thruster is anode protected to prevent corrosion. It is finished with anti-fouling paint over epoxy primer. Shipped as a complete kit with thruster, motor controller, wireless joystick, wiring harness and mounting hardware, installation usually takes around 5-6 hours.

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


Typical Boat Size                              Boats from 45’(12.5m) to 60’(15m) in length
Motor Voltage                                   24 VDC
Motor Amperage                               400 Amps
Motor Horse Power                            7.5 HP
Motor Revolutions per Minute             3000 RPM
Motor Duty Cycle                              Run time 30sec Cool down 10 sec
Propulsion System                            Two 8” Aluminium Propellers
Joystick Voltage                               12V or 24V
Exterior Finish                                  Interlux Protect 2000 Epoxy Primer and Tri-Lux 498 Anti-Fouling Paint
Battery Requirements                       Two 12V 850CCA Starting Type or Gel Cell Battery


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