Side-Power SE 100/185 T Bow Thruster - 12V

Engineered by Advance Trident, the SE 100/185 T Bow Thruster packs serious stopping power into a compact package designed for boats with tight tunnel spaces. With a 185mm tunnel, this unit delivers precise, confident bow control during docking, mooring, and close-quarters maneuvering—without crowding your deck or compromising performance.

Compact power, maximum control

• Twin counter-rotating propellers inside a sealed gear leg deliver strong, balanced bow thrust in a small 185mm tunnel.
• Q-prop five-blade skew design reduces noise while improving thrust at the same diameter, producing cleaner, smoother steering at low and mid-thrust levels.
• Real-world noise reduction is commonly 20–40% in busy marinas and narrow slips, making docking calmer and more predictable.

Smart protection, built to last

• Intelligent Power Control guards the thruster from high-current events and user faults, preserving reliability.
• Protective safeguards include a safe delay between changing drive directions to prevent abrupt maneuvers and active solenoid monitoring to reduce lock-ins.
• Automatic stop if a solenoid becomes locked, even when the main switch isn’t engaged.
• Ceramic and carbon seals form the only moving sealing surfaces, delivering robust resistance to water intrusion.
• Pre-filled long-life gear oil provides lifetime lubrication; sealed, lifetime-lubricated gear leg shields the drive from salt spray and groundwater.
• Galvanic separation isolates submerged components from electrical faults, boosting reliability in mixed electrical systems.

Practical on-water benefits

Designed for crowded docks and variable currents, the SE 100/185 T delivers:

• Precise, controlled bow movement for dependable docking in gusty or crosswind conditions.
• Enhanced hold in currents, reducing the need for aggressive fendering and improving overall maneuverability.
• A compact footprint that frees deck space for other essential gear and activities.

Who this is for

Ideal for sailboats and motor yachts with limited tunnel space that still demand robust bow thrust. If you’ve felt the squeeze of a small tunnel limiting maneuverability, the SE 100/185 T is engineered to deliver decisive control without expanding your system footprint.

Key specifications

• Voltage: 12V DC
• Tunnel inner diameter: 185 mm
• Drive: Twin propellers within a sealed gear leg
• Thrust: ~116 kg at 12V; ~100 kg at 10.5V (reference values for different DC conditions)
• Boat size guidance: commonly suited for vessels in the 35–55 ft (12–17 m) range
• Note: This listing is for the bow thruster unit only. For a complete, turnkey installation, pair with compatible control and installation hardware from Advance Trident.

Why choose the Side-Power SE 100/185 T

With a focus on real-world functionality, this bow thruster translates power into predictable, repeatable handling in tight slips and busy marinas. The combination of a compact 185mm tunnel, smart protection systems, and durable, maintenance-minimizing construction means you’ll experience fewer headaches and more confidence on every docking approach. It’s the reliable choice for boaters who value precise control, quiet operation, and long-term peace of mind.