SX50 Compact Stern Thruster, 12V, 50kg Thrust Up to 50mm Transom Thickness

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The SX50 Compact Stern Thruster is a 12V stern thruster that provides 50 kg (110 lbs) of thrust. Designed for a transom thickness of up to 50 mm, it offers a compact and efficient solution to enhance maneuverability and control of the vessel. Approximate weight of the thruster: 48 lbs.

SX50 Compact External Stern Thruster, 12v 50kg/110lb Thrust On-Off, up to 2″ (50mm) transom thickness

Use the Hydropod Kit #SM150536 for installation as a Bow thruster or in water flow

The SX50/140 is the perfect choice for boats where the inside configuration of the boat’s stern makes a standard thruster installation impractical. When fitted with the optional cowls, the stern thruster assembly is perfect for boats with twin stern drives. The special cowls enable good performance by diverting the waterflow past the stern drive legs which normally blocks the waterflow and the thrust.


Other items to consider when purchasing a new thruster:

  • Control Panels and Remote Controls
  • AutoMainswitch, Battery Disconnect, Fuse & Fuseholder
  • 4-Wire Harnesses (when not using AutoMainswitch)
  • 5-Wire Harnesses (for use with AutoMainswitch)
  • For use between Outboards, Stern Drives, or other shallow applications like Ski Boats, consider adding the Cowls SM130773, or Grates SM130789.
  • For Isolation on Aluminum/Steel hulls or for spacing, consider an Isolation Block,  SM148170 50mm or SM148171 10mm.


  • Simple external installation with no GRP work necessary.
  • Compact unit, energy efficient and long run times
  • Requires only small holes in the boat’s transom for power/control cables and mounting.
  • Serviceable when boat is lifted (refitted with new O-ring seal).
  • Available in PRO version with variable speed control

50MM, 150MM

Thrust @ 10.5VDC

110 lbs (50kg)

Approximate Ship Weight (lbs)

48 lbs

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