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Side Power SR80 24v Bow Thruster
The SR80 185 retractable bow thruster 24v is a retracting thruster kit built for owners who want a marine bow thruster feel at the dock, while keeping the hull profile cleaner when the unit is stowed. It is designed for a 185 mm (7.3″) tunnel and is positioned for boats in the published ~35–48 ft range, with fast deployment/retraction and Plug & Play S-Link™ control wiring.
Retractable bow thruster for 40 ft boat
As a retractable bow thruster for 40 ft boat setups, SR80/185T-24V is typically selected when low-speed control matters most (tight marinas, wind/current) and the owner wants to reduce unnecessary drag when cruising. The retract format is specifically positioned as a solution for performance-minded boats where even small drag penalties matter.
Bow thruster for 40 boat
If a bow thruster for 40 boat handling is the objective, the key fit points are simple and predictable: 24VDC supply, 185 mm tunnel match, and an electrical system sized for high-current thruster duty. In practice, this is the kind of setup that helps reduce repeated throttle corrections and improves confidence during final docking alignment.
Features & benefits
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Plug & Play S-Link™ two-way communication control wiring
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Compact format designed around the retract casing concept
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Fast deployment and retraction for responsive docking use
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Designed to be fitted as bow and/or stern thruster (layout dependent)
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Twin propeller concept (high thrust in small tunnel diameters)
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A practical path to a 24v bow thruster motor solution when 24V systems are already on board
Technical specifications
Performance & sizing
| Spec | Value |
|---|---|
| Thrust @ 21VDC | 176 lb (80 kg) |
| Thrust @ 24VDC | 212 lb (96 kg) |
| Typical boat size (published) | 35–48 ft (10–15 m) |
| Tunnel diameter (I.D.) | 7.3 in (185 mm) |
| Thrust range (manufacturer positioning) | 80–96 kg |
Electrical requirements
| Spec | Value |
|---|---|
| Voltage | 24VDC |
| Recommended fuse size | 250 A (SMANL250) |
| Minimum battery capacity | 570 CCA (SAE) |
Dimensions & shipping
| Spec | Value |
|---|---|
| Dimensions (listed) | 21″ (W) × 16″ (H) × 30″ (L) |
| Approx. ship weight (listed) | 68 lb |
If this is being evaluated as a bow thruster boat for sale upgrade, the main decision driver is simple: retractable geometry for reduced drag when stowed, plus published thrust (up to 96 kg / 212 lb) for controlled docking on mid-size boats
Why choose SR80/185T-24V
SR80/185T-24V is a smart pick when the priority is strong low-speed docking control without leaving permanent drag in the water. The retract design keeps the hull cleaner when stowed, while the 185 mm tunnel format and published thrust range are sized for confident maneuvering on boats in the typical 35–48 ft class.
| Weight | 68 lbs |
|---|---|
| Dimensions | 30 × 21 × 16 in |
| Speed Control | On/Off |
| Power Supply | 24V |
| Boat Size | 35-48 ft |
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