Above $1000

SLEIPNER SEP40/125S PROPORTIONAL TUNNEL THRUSTER | 12V | 40KG/88LB | REPLACEMENT MOTOR & GEARLEG ONLY | SEP40/125S

The exact factory replacement core for your existing Sleipner Side-Power 12V proportional setup. The Sleipner SEP40/125S is a "Thruster Only" component package containing the high-performance 12V proportional electric motor, internal relays, and precision gearleg assembly. Delivering a dependable 40 kg (88 lbs) of lateral thrust, this unit is engineered specifically as a drop-in replacement or core component swap for vessels from 26 to 34 feet utilizing a 125mm tunnel system.

⚠️ IMPORTANT NOTE: This is a "Thruster Only" SKU. It does not include the fiberglass/composite tunnel hull mount, motor bracket/mount flange, control panels, wiring harnesses, or S-Link™ digital network cables. It is designed specifically for refits, accidental damage replacement, or custom fabrications where the structural mounting interface is already present on the vessel.

Key Features:

• True Proportional Core: Fully compatible with Sleipner's S-Link™ Digital Bus system and PPC520 speed controllers, enabling smooth, variable-speed throttle command and the single-handed "Hold" function when paired with an appropriate control panel.

• Maintenance-Free Sealed Gearleg: Features a factory-sealed gearhousing pre-filled with specialized lifetime gear oil. Mechanical ceramic-on-carbon seals ensure absolute water tightness, completely eliminating the need for periodic oil changes.

• Compact 125mm Profile: Built specifically to bolt onto existing Sleipner 125mm (5-inch) internal tunnel configurations.

• Intelligent Power Control (IPC): Features Sleipner’s patented smart monitoring firmware built right into the internal relays, protecting the system from instant directional shifts and overheating damage.

• Galvanic Isolation: The gear housing features completely isolated internal bushings, preventing stray currents and electrochemical reactions from causing galvanic corrosion on vital drive components.

Specifications:

• Part Number: SEP40/125S (Core Component / No Mount)

• Thrust Power: 40 kg (88 lbs) at 10.5V / 48 kg (105 lbs) at 12V

• Motor Output: 2.2 kW (3.0 Hp)

• System Voltage: 12V DC

• Required Tunnel Diameter: 125 mm (4.92'')

• Control Interface: S-Link™ Digital Bus (Variable Speed)

• Propulsion Layout: Single 5-Blade Q-Prop™ Compatible

SLEIPNER SRV100/185T VERTICAL RETRACTING THRUSTER KIT | 24V ON-OFF | 100KG/220LB | SRV100/185T-24V

Command heavy-duty docking power without sacrificing an ounce of cruising speed or performance. The Sleipner Side-Power SRV100 (SRV100/185T-24V) is a high-performance, vertically retracting 24V on-off thruster kit designed for mid-to-large-sized vessels. Delivering a massive 100 kg (220 lbs) of lateral thrust, this unit drops straight down for flawless maneuvering in tight marinas and pulls completely flush into the hull when underway, guaranteeing zero underwater drag.

This "component-only" kit features a flange-mounted configuration where the core thruster and motor assembly are enclosed in a bolt-down casing, making it incredibly straightforward for series boat builders or replacement installations.

(Note: This SKU contains the vertical mechanical thruster unit, actuator, and 24V motor assembly; it does not include the installation outer frame or mold-in flange base).

Key Features:

• Vertical Retraction Mechanism: Extends vertically downward to maximize water depth and pushing leverage, then retracts straight up flush with the hull to completely eliminate speed-robbing drag.

• Heavy-Duty 100 kg (220 lbs) Thrust: Provides robust pushing power to easily pivot your bow or stern, giving you complete command even in strong crosscurrents or tight docking slips.

• High-Efficiency 24V Architecture: Designed for serious marine electrical systems, the 24V setup ensures the thruster runs cooler, handles high loads better, and utilizes smaller, lighter wiring runs than 12V alternatives.

• Deep Waterline Leverage: Because a retractable thruster deploys deeper under the waterline than a traditional fixed tunnel thruster, it operates with maximum efficiency and avoids drawing in surface air (cavitation).

• Twin Q-Prop™ Counter-Rotating Propellers: Outfitted with aerodynamically skewed 5-blade twin propellers that deliver maximum thrust efficiency while cutting down cabin vibration and noise by up to 75%.

• Intelligent Power Control (IPC): Sleipner’s patented smart monitoring firmware protects your solenoids and mechanical gears by preventing instant direction changes and automatically cutting power if a fault is detected.

Specifications:

• Part Number: SRV100/185T-24V

• Thrust Power: 100 kg (220 lbs) at 21V / 116 kg (255 lbs) at 24V

• System Voltage: 24V DC

• Tunnel Diameter: 185 mm (7.3'')

• Operation Type: Standard Single-Speed (On / Off)

Important Buyer Note: This unit does not include the outer mounting frame or base flange. It is designed as a direct replacement component or for custom yacht building projects where the fiberglass flange base is supplied separately or constructed directly into the hull.

SLEIPNER SRP80/185T RETRACTING PROPORTIONAL THRUSTER 12V | 80Kg/176LB | SRP80/185T-12V

Command total docking control without sacrificing an ounce of sailing or cruising speed. The Sleipner Side-Power SRP80/185T is a premium, 12V retracting thruster engineered specifically for sailing yachts and motor cruisers where a standard tunnel installation is impossible or causes unacceptable hull drag. Delivering a powerful 80 kg (176 lbs) of thrust, this unit folds completely flush into your hull when not in use, preserving your boat's raw speed, fuel efficiency, and hydrodynamic performance.

Equipped with factory-standard S-Link™ Proportional Control, this system replaces old-school, full-blast "on/off" thrusters with smooth, variable-speed control. This allows you to apply precisely the right amount of power to counteract crosswinds and strong currents—making tight marina docking completely stress-free.

Key Features:

• True Proportional Power (S-Link™): Variable speed capability gives you exact, metered power. Feed in a gentle, whisper-quiet nudge for minor adjustments or dial it up to full throttle for maximum command in heavy weather.

• Retractable Flush-Mount Design: Drops down for docking, folds safely up for cruising. Completely eliminates underwater drag, making it the premier choice for racing/cruising sailors and fast motor yachts.

• 12V Drop-In Compatibility: Specially designed to integrate seamlessly into standard 12V electrical setups, providing heavy-duty docking muscle without requiring complex voltage step-up series or independent battery banks.

• Deep Pushing Leverage: By deploying deeper under the waterline than a standard fixed tunnel thruster, it maximizes pushing leverage and eliminates cavitation (drawing in surface air) for highly efficient, quieter operation.

• Intelligent Safety Fail-Safes: Includes an auto-retraction safety timer if the system is left idle at the helm, electronic overload monitoring, and mechanical locking protections.

• Twin Q-Prop™ Counter-Rotating Propellers: Outfitted with aerodynamically skewed composite twin propellers that maximize raw thrust output while drastically reducing cabin noise and vibration.

Specifications:

• Part Number: SRP80/185T-12V

• Thrust Power: 80 kg (176 lbs) at 10.5V / 96 kg (212 lbs) at 12V

• System Voltage: 12V DC

• Tunnel Diameter: 185 mm (7.3'')

• Control System: S-Link™ Digital Bus

• Propulsion Type: Twin Counter-Rotating Q-Prop™

Pro Tip: The 12V version of the SRP80 is the ultimate drop-in safety upgrade for boats with pre-existing 12V electrical systems. Because retractable thrusters drop deeper into the water than a typical tunnel thruster, it achieves maximum leverage and efficiency with significantly less noise.

SLEIPNER SRP80/185T RETRACTING PROPORTIONAL THRUSTER 24V | 80Kg/176LB | SRP80/185T-24V

Take the anxiety out of docking with elite proportional control and zero cruising drag. The Sleipner Side-Power SRP80/185T is a premium, 24V retracting thruster engineered specifically for sailing yachts and motor cruisers where minimizing hull resistance is critical. Delivering a solid 80 kg (176 lbs) of thrust, this unit folds completely flush into your hull when not in use, preserving your boat's raw speed, fuel efficiency, and performance.

Equipped with factory-standard S-Link™ Proportional Control, this system replaces old-school, full-blast "on/off" thrusters with smooth, variable speed control. This allows you to apply precisely the right amount of power to combat strong crosscurrents and wind, making tight slip entries effortless.

Key Features:

• True Proportional Power (S-Link™): Variable speed capability gives you exact, metered power. Feed in a gentle, whisper-quiet nudge or dial it up to full throttle for maximum command in heavy weather.

• Retractable Flush-Mount Design: Deploys down for docking, folds safely up for cruising. Completely eliminates underwater drag, making it the premier choice for racing/cruising sailors and fast motor yachts.

• High-Efficiency 24V Architecture: Operating on a 24V system ensures the thruster runs cooler, draws fewer amps, and uses lighter wiring runs compared to traditional 12V models.

• Deep Leverage Advantage: By deploying deeper under the waterline than a standard fixed tunnel thruster, it maximizes pushing leverage and eliminates cavitation (drawing in surface air) for a quieter operation.

• Intelligent Safety Fail-Safes: Includes an auto-retraction safety timer if the system is left idle at the helm, electronic overload monitoring, and mechanical locking protections.

• Twin Q-Prop™ Counter-Rotating Propellers: Outfitted with aerodynamically skewed composite twin propellers that maximize thrust output while drastically reducing cabin noise and vibration.

Specifications:

• Part Number: SRP80/185T-24V

• Thrust Power: 80 kg (176 lbs) at 21V / 96 kg (212 lbs) at 24V

• System Voltage: 24V DC

• Tunnel Diameter: 185 mm (7.3'')

• Control System: S-Link™ Digital Bus

• Propulsion Type: Twin Counter-Rotating Q-Prop™

Pro Tip: The SRP80 24V model is highly recommended for modern yachts with dedicated 24V house or thruster banks. The lower current draw means less voltage drop over long cable runs from the battery bank to the bow or stern compartment.

SLEIPNER SRV80/185T VERTICAL RETRACTING THRUSTER | 12V ON-OFF | 80KG/176LB | SRV80/185T-12V

Master tight docking slips without sacrificing an ounce of cruising speed or fuel efficiency. The Sleipner Side-Power SRV80 (SRV80/185T-12V) is a high-performance, vertically retracting 12V on-off thruster engineered for performance sailboats, shallow-draft motor yachts, and vessels between 35 and 48 feet. Delivering a dependable 80 kg (176 lbs) of lateral thrust, this unit drops straight down to pivot your bow or stern, then retracts completely flush into the hull when underway for zero cruising drag.

This model features a flange-mounted configuration where the core thruster and motor assembly are securely enclosed in a bolt-down casing. It is an exceptional drop-in safety upgrade or replacement component that integrates seamlessly with your boat's existing 12V house or thruster battery banks.

(Note: This SKU contains the vertical mechanical thruster unit, actuator, and 12V motor assembly; it does not include the installation outer frame or mold-in flange base).

Key Features:

• Vertical Retraction Mechanism: Deploys straight down to maximize deep-water leverage when maneuvering, and pulls straight back up into the hull to preserve your boat's raw speed and hydrodynamic profile.

• 80 kg (176 lbs) of Pushing Power: Provides robust, reliable docking assistance to easily pivot your vessel against stubborn crosswinds or tight marina currents.

• 12V Drop-In Compatibility: Connects directly into standard 12V marine electrical systems, providing heavy-duty docking muscle without the need for complex voltage converters or independent 24V battery banks.

• Deep Waterline Leverage: Because a retractable thruster deploys deeper under the waterline than a traditional fixed tunnel thruster, it operates with maximum efficiency and avoids drawing in surface air (cavitation).

• Twin Q-Prop™ Counter-Rotating Propellers: Outfitted with aerodynamically skewed composite twin propellers that maximize thrust output while reducing cabin noise and vibration by up to 75%.

• Intelligent Power Control (IPC): Sleipner’s patented smart monitoring firmware protects your solenoids and mechanical gears by preventing damaging, instantaneous direction changes.

Specifications:

• Part Number: SRV80/185T-12V

• Thrust Power: 80 kg (176 lbs) at 10.5V / 96 kg (212 lbs) at 12V

• Typical Vessel Size: 35 to 48 Feet (10 to 15 meters)

• System Voltage: 12V DC

• Tunnel Diameter: 185 mm (7.3'')

• Operation Type: Standard Single-Speed (On / Off)

Important Buyer Note: This unit does not include the outer mounting frame or base flange. It is designed as a direct replacement component or for custom yacht building projects where the fiberglass flange base is supplied separately or constructed directly into the hull by the builder.

SLEIPNER SRL80 RETRACTABLE THRUSTER | 90° LOW-PROFILE MOTOR | 24V ON-OFF | 80KG/176LB | SRL80/185T-24V

Maximize your docking maneuverability without compromising vertical cabin or locker space. The Sleipner Side-Power SRL80 (SRL80/185T-24V) is a robust, 24V retractable on-off thruster kit specifically engineered for vessels between 35 and 48 feet. Featuring a specialized 90-degree angled motor design with custom bevel gears, this "Low-Profile" model fits into tight vertical compartments where traditional straight-vertical thruster housings simply cannot clear.

Designed for flange-mounting, the thruster unit sits securely inside a structural casing that bolts easily to a base. This setup simplifies series production and makes installation straightforward across a wide variety of hull materials.

(Note: This SKU contains the mechanical thruster unit and motor assembly; it does not include the installation outer frame or mold-in flange base).

Key Features:

• 90-Degree Low-Profile Design: Angled motor assembly with high-grade bevel gears significantly reduces overall installation height, making it ideal for shallow hull sections, tight floorboards, or under-berth lockers.

• Flange-Mounted Configuration: The core thruster unit is enclosed in a bolt-down casing, making installation simpler on steel, aluminum, fiberglass, or wood hulls.

• Zero-Drag Hydrodynamics: Deploys rapidly with a powerful, fast-acting single actuator when docking, and pulls completely flush into the hull when underway to eliminate water resistance and maximize boat speed.

• High-Efficiency 24V Architecture: Built for performance hulls, operating on 24V means the unit draws fewer amps (280A nominal), runs cooler, and allows for smaller, lighter cable routing.

• Twin Q-Prop™ Counter-Rotating Propellers: Outfitted with aerodynamically skewed 5-blade twin propellers that deliver up to a 75% reduction in cavitation noise while maximizing lateral pushing power.

• Intelligent Power Control (IPC): Sleipner’s patented smart monitoring system provides a minimal delay between drive directions to protect mechanical gears and automatically cuts power in the event of a solenoid fault or lock-up.

Specifications:

• Part Number: SRL80/185T-24V

• Thrust Power: 80 kg (176 lbs) at 21V / 96 kg (212 lbs) at 24V

• Typical Vessel Size: 35 to 48 Feet (10 to 15 meters)

• System Voltage: 24V DC

• Tunnel Diameter: 185 mm (7.3'')

• Operation Type: Standard Single-Speed (On / Off)

Important Buyer Note: This unit does not include the outer mounting frame/base flange. It is designed as a direct replacement component or for custom projects where the flange base is supplied separately or constructed by the boat builder.

SLEIPNER SX100/185T-12V EXTERNAL STERN THRUSTER | 12V | TWIN PROPS | 220-255LB THRUST

The perfect external stern thruster solution for boats with restricted internal space, shallow drafts, or single-battery bank configurations. The Sleipner Side-Power SX100/185T-12V is a self-contained, externally mounted pod thruster designed for vessels from 35 to 55 feet. By mounting directly to the outside of the transom, the SX100 eliminates the need for extensive internal hull tunneling or complex engine room re-routing, making it a favorite for both retrofits and demanding modern builds that utilize a standard 12V electrical system.

The SX100 generates a formidable 220 lbs (100 kg) of thrust at a 10.5V nominal load, ramping all the way up to 255 lbs (116 kg) of thrust under a full 12V peak load to seamlessly square your stern up against tricky crosscurrents and heavy dockside winds.

Key Features:

• Hydrodynamic, Space-Saving External Pod: Positioned entirely outside the hull on the transom, the SX100 frees up vital internal storage and engine room volume. Its hydrodynamic casing ensures negligible drag and zero impact on sailing or cruising performance when under way.

• Patented Intelligent Power Control (IPC): Sleipner's advanced microprocessor-controlled system protects your thruster from mechanical wear and operator error. It enforces a minimal safety delay when switching drive directions, monitors solenoid function, and automatically halts the thruster in the rare event of a solenoid lock-in.

• Twin Counter-Rotating Q-Prop™ Propellers: Outfitted with dual, 5-blade composite skew propellers spinning in opposite directions. This twin-prop configuration packs maximum thrust density into a narrow 185mm (7.3") integrated tunnel while dropping noise and cavitation vibrations by up to 75%.

• Ignition Protected (ISO 8846) & Hermetically Sealed: Structurally sealed to meet rigorous ignition protection standards, making it completely safe for installation on the sterns of gasoline-powered vessels, near fuel ventilation paths, or in harsh saltwater environments.

• Complete Galvanic Separation: The internal drive components and motor elements are entirely isolated from the vessel's onboard electrical grounding system, completely removing the threat of stray-current galvanic corrosion eating away your underwater gear.

• Zero Maintenance Sealed Lubrication: Features a lifetime-lubricated gearhousing protected by a heavy-duty ceramic-on-carbon mechanical seal interface. This creates a definitive barrier against seawater intrusion, completely eliminating the need for periodic gear oil changes.

Specifications:

• Part Number: SX100/185T-12V

• Thrust Power (at 10.5V Nominal): 100 kg (220 lbs)

• Thrust Power (at 12V Peak): 116 kg (255 lbs)

• Motor Output (at 10.5V): 6.3 kW (8.4 HP)

• Typical Vessel Size: 35 to 55 Feet (11 to 17 meters)

• System Voltage: 12V DC

• Tunnel Inner Diameter: 185 mm (7.28'')

• Propulsion Type: Twin Counter-Rotating 5-Blade Q-Prop™

• Certifications: ISO 8846 (Ignition Protected), CE

Installation Advantage: Because the pod sits low on the transom, the SX100 achieves excellent water depth even on shallow-draft boats or vessels with limited transom height, maximizing thrust efficiency and preventing the propellers from sucking air (cavitation) during operation. Optional cowls are available to redirect waterflow or shield the unit from sterndrive interference.

SLEIPNER E120 eVision PROPORTIONAL TUNNEL THRUSTER | 48V | 120KG/264LB THRUST | 215MM TUNNEL

Command mid-sized hulls with commercial-grade endurance, zero performance fade, and high-efficiency 48V brushless power. The Sleipner Side-Power E120/215T-48V is an advanced marine electric thruster engineered explicitly for motorboats, cruisers, and sailboats from 38 to 54 feet. This premium eVision series unit packs a precise 120 kg (264 lbs) of continuous variable thrust into a compact 8.46-inch (215mm) tunnel diameter.

At the heart of the E120 is a revolutionary 6-phase PMSM (Permanent Magnet Synchronous Motor) with an integrated motor inverter drive. By completely eliminating legacy mechanical brushes, this state-of-the-art system runs significantly cooler, draws minimal amperage at peak 48V operation, and is up to 50% lighter and 40% more compact than traditional DC motors in its class.

Key Features:

• Next-Gen Brushless PMSM Technology: Moving away from standard brushes to an automotive-grade, 6-phase Permanent Magnet Synchronous Motor means a near-infinite lifespan, zero carbon dust buildup, and maximum electrical-to-mechanical efficiency.

• Extended Runtimes & Active Cooling: Traditional DC thrusters overheat and force an automatic shutdown within a few minutes. The E120 utilizes an integrated smart inverter and an active air-cooling system to safely stretch runtimes. If thermal boundaries are pushed, it seamlessly derates power slightly rather than shutting down completely.

• True Proportional Power (S-Link™ Ready): Replaces harsh, loud on/off blasting with fluid variable speed control via a CAN-bus network. Apply a quiet, metered 10% nudge to counter light harbor drift, or leverage the automated "Hold" function to single-handedly pin the boat against the slip while you safely handle mooring lines.

• Ultra-Quiet Twin Propellers: Outfitted with twin, aerodynamically skewed 5-blade composite Q-Prop™ propellers. This dual configuration packs maximum thrust density into a tight 215mm footprint while dropping cabin noise and hull vibrations by up to 75%.

• Ignition Protected (ISO 8846) & Splash-Proof: Completely hermetically sealed, making it safe for installation in gasoline engine bays, fuel lockers, or moist bilge spaces where standard open-frame motors present safety hazards.

• Complete Galvanic Separation: The immersed drive gearleg is entirely isolated from the vessel's onboard 48V electrical grid. This breaks the electrical circuit, completely removing the threat of stray-current galvanic corrosion eating away your underwater gear.

• Zero Maintenance Sealed Lubrication: Features a lifetime-lubricated gearhousing protected by a heavy-duty ceramic-on-carbon mechanical seal interface, completely eliminating periodic gear oil changes.

Specifications:

• Part Number: E120/215T-48V

• Thrust Power: 120 kg (264 lbs) variable speed output (consistent at both 42V and 48V)

• Typical Vessel Size: 38 to 54 Feet (11 to 16 meters)

• System Voltage: 48V DC

• Tunnel Inner Diameter: 215 mm (8.46'')

• Net Weight: 24 kg (53 lbs) — up to 50% lighter than traditional DC units in its class

• Control System: S-Link™ Digital CAN-Bus

• Certifications: ISO 8846 (Ignition Protected), CE, UKCA

Pro Tip: Operating on a 48V architecture means the E120 draws exceptionally low current. This allows for significantly thinner, lighter, and more flexible battery cables over longer installation runs throughout the boat, maximizing engine space and minimizing rigging costs.