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SXP 100kg external stern thruster 24V (100kg) – Sealed 5-Blade
$11,250.00
SXP 100kg external stern thruster with proportional control and a sealed 5-blade design (SKU SXP100/185T-24V). Built around a 185mm tunnel, it delivers up to 256 lb (116 kg) published thrust at 24V for confident low-speed docking and stern positioning.
SXP 100kg external stern thruster
Designed for close-quarters handling where a conventional internal stern install is impractical, this SXP 100kg external stern thruster delivers proportional, controllable stern authority for docking in wind/current. The unit is configured as an external system (SKU shown as SXP100/185T-24V) and is positioned for boats in the published 40–56 ft range when correctly specified and installed.
electric stern thruster
As an electric stern thruster, the SXP platform uses proportional speed control so thrust can be applied gradually—helpful for controlled docking corrections instead of “all-or-nothing” bursts. It is also described as waterproof and ignition protected (per distributor listings), supporting installation planning for a wide range of powertrain layouts.
outboard stern thruster
For owners considering an outboard stern thruster style solution, the key advantage here is the external installation concept: the thruster is supplied pre-assembled in a rugged casing, and the installation notes emphasize that only small holes in the transom are required for power/control cabling and mounting.
Technical specifications
Identification & configuration
| Spec | Value |
|---|---|
| Product page name | SXP External Stern Thruster 100Kg Thrust Sealed 5 Blade |
| SKU / item code | SXP100/185T-24V |
| Power supply | 24VDC |
| Speed control | Proportional |
| Propulsion system | Twin |
Performance & sizing (manufacturer/distributor-published)
| Spec | Value |
|---|---|
| Thrust @ 21VDC | 220 lb (100 kg) |
| Thrust @ 24VDC | 256 lb (116 kg) |
| Typical boat size | 40–56 ft (12–17 m) |
| Tunnel diameter (I.D.) | 7.3 in (185 mm) |
| Power @ 21VDC | 8.4 hp (6.3 kW) |
Electrical requirements
| Spec | Value |
|---|---|
| Minimum battery capacity | 760 CCA (SAE) |
| Recommended fuse size | 325 A (SMANL325) |
Install geometry & shipping details
| Spec | Value |
|---|---|
| Min depth to top of tunnel | 5.47 in (139 mm) |
| Min depth to center of tunnel | 10.90 in (277 mm) |
| Approx. ship weight | 88 lb |
| Listed package dimensions | 45 × 45 × 45 in |
external stern thruster for motorboat
This external stern thruster for motorboat applications is commonly selected when interior stern structure limits a traditional tunnel install. Distributor listings highlight an external GRP casing, waterproof/ignition-protected design, and serviceability when the boat is lifted (O-ring refit), which helps reduce lifecycle friction for owners maintaining the unit over time.
bolt on stern thruster for boats
As a bolt on stern thruster for boats, the install concept focuses on external mounting with small transom penetrations for routing cables and securing the assembly. This supports cleaner retrofit planning compared with more invasive stern modifications—especially when the goal is reliable docking control without reworking internal stern compartments.
Compatibility & requirements to plan upfront
| Planning item | What to verify before purchase |
|---|---|
| Voltage & current planning | Confirm a 24VDC system designed for high-current thruster loads, including correct fuse sizing. |
| Battery capability | Minimum 760 CCA (SAE) is listed; also plan cabling to minimize voltage drop. |
| Tunnel geometry & clearances | System is specified around a 185 mm (7.3″) tunnel and published minimum depth geometry. |
| External installation fit | Ensure transom/sterndrive layout supports external placement and mounting points. |
Proof of confidence (why this platform is trusted)
Sleipner’s SX/SXP external stern thruster platform is described with system-level features such as sealed drive lubrication, galvanic separation, twin propellers, and a Q-PROP™ five-blade concept aimed at reducing noise while maintaining efficiency. The “PRO™” concept is positioned around applying only the power needed via variable/proportional control.
Why buy this external mount stern thruster
If an external mount stern thruster is the right architecture for the vessel, the value case is straightforward: proportional control for finer docking corrections, published thrust up to 116 kg (256 lb) at 24V, and an external, pre-assembled concept that simplifies retrofit planning. For many boats, that makes it a practical external mounted stern thruster upgrade to reduce stress and improve confidence in tight marinas.
| Weight | 171 lbs |
|---|---|
| Speed Control | Proportional |
| Power Supply | 12V |
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