SLEIPNER SX35 EXTERNAL STERN THRUSTER | 12V | 35-43KG THRUST | FOR TRANSOMS UP TO 150MM

SLEIPNER SX35 EXTERNAL STERN THRUSTER | 12V | 35-43KG THRUST | FOR TRANSOMS UP TO 150MM

The ultimate ultra-compact external stern thruster engineered for smaller vessels or tight hulls—no extensive fiberglass work required. The Sleipner Side-Power SX35 (150mm Version) is a highly versatile, self-contained external pod thruster designed specifically for motorboats and cruising sailboats up to 32 feet. Outfitted with an extended 150mm (5.9") mounting shaft structure, this model is explicitly built to effortlessly pass through extra-thick transoms and deep cored hulls up to 150mm in thickness.

The SX35 packs an impressive punch for its compact size, yielding a reliable 77 lbs (35 kg) of continuous thrust at a 10.5V nominal load, and ramping all the way up to 95 lbs (43 kg) of peak thrust at a full 12V charge.

Key Features:

• Extended 150mm Transom Capability: Engineered with a specialized long-reach mounting thread layout, this unit securely clamps through deep-cored fiberglass, reinforced transoms, and heavy-timber backings up to 150mm (5.9 inches) thick without requiring hull thinning.

• No Complex Glasswork / Easy Installation: Eliminates the need for traditional internal fiberglass tunneling. Installation only requires drilling small, clean mounting holes for the securing bolts and the main power cable entry sleeve.

• Patented Intelligent Power Control (IPC): Sleipner’s advanced microprocessor-controlled safety system provides a protective millisecond delay when switching drive directions to eliminate mechanical drivetrain shock. It actively monitors solenoid function and automatically kills power if a solenoid lock-in is detected.

• Whisper-Quiet Single Q-Prop™ Propeller: Features a state-of-the-art 5-blade composite skew propeller running inside a highly optimized 140mm (5.5") integrated tunnel. Paired with vibration-absorbing hull connection sleeves, this setup drops cabin noise and stern vibrations by up to 75%.

• Ignition Protected (ISO 8846) & Hermetically Sealed: Certified under ISO 8846 and UL 1500 standards. All electrical components are isolated inside a watertight composite casing, making it 100% safe to install on gasoline-powered boats or near fuel vapor lockers.

• Enhanced Hydrodynamic Water Cooling: Because the entire aluminum pod sits completely submerged outside the hull, it benefits from constant, rapid water-jacket cooling, resulting in significantly longer continuous runtimes per cycle than internal DC alternatives.

• Complete Galvanic Separation: Immersed aluminum and drive components are thoroughly isolated from the vessel's onboard 12V electrical ground network, terminating the threat of stray-current galvanic corrosion. Includes factory-installed anodes for immediate underwater protection.

• Zero Maintenance Sealed Lubrication: Features a lifetime-lubricated gearhousing running a heavy-duty ceramic-on-carbon mechanical seal face, guaranteeing total protection against saltwater intrusion.

Specifications:

• Product Line: SX35 (Extended Shaft Variant)

• Thrust Power (at 10.5V Nominal): 35 kg (77 lbs)

• Thrust Power (at 12V Peak): 43 kg (95 lbs)

• Motor Output (at 10.5V): 1.8 kW (2.4 HP)

• Typical Vessel Size Class: Up to 32 Feet (9.5 meters)

• System Voltage: 12V DC

• Max Transom/Hull Thickness: Up to 150 mm (5.91'')

• Internal Tunnel Diameter: 140 mm (5.51'')

• Nominal Current Draw: 250 Amps

• Recommended Fuse Size: ANL 150

• Net Weight: 15.3 kg (33.7 lbs)

• Propulsion System: Single 5-Blade Q-Prop™

• Control Signaling Type: Analog Plug-and-Go

Pro Tip: For vessels experiencing heavy water-flow friction at cruising speeds, or for sailboats looking to minimize drag to zero, the SX35 can be retrofitted with an optional Hydropod low-drag cowl kit. This seamlessly covers the pod assembly to ensure smooth hydrodynamic tracking while under way.

SX35/140-12V-150MM-2