Discover the unmatched control and precision that the Lewmar 185TT tunnel thruster brings to your boating adventures. Designed for vessels demanding reliable sideways thrust, this Gen2 model delivers 97 kgf of power through a compact 185mm tunnel, making docking in windy conditions or tight marinas feel effortless. Boat owners swear by its whisper-quiet operation and robust build, turning challenging maneuvers into smooth routines.
Why Serious Boaters Trust the Lewmar 185TT for Superior Maneuverability
Imagine gliding into a crowded slip without breaking a sweat. The Lewmar 185TT 6.0kW Gen2 bow thruster excels in real-world scenarios, from coastal cruisers to larger yachts up to 50 feet. Its 12V system pairs perfectly with standard marine batteries, ensuring instant response when you need it most. Unlike older designs prone to wear, this unit’s innovative engineering minimizes downtime and maximizes thrust symmetry for consistent performance port or starboard.
Crafted with marine-grade materials, it withstands harsh saltwater environments while keeping maintenance off your to-do list. High-integrity seals prevent water ingress, and the self-resetting thermal protection safeguards against overloads during extended use. Whether battling crosswinds or currents, this thruster empowers confident handling, reducing stress and enhancing safety on the water.
Standout Features That Set It Apart
Sealed Gearbox Design: Eliminates the need for hydraulic reservoirs, dodging leaks and service hassles common in traditional systems.
Precision 5-Blade Propellers: Deliver balanced thrust in both directions, with a spline-driven setup that skips fragile drive pins for longer life.
Advanced Black Box Electronics: Includes misuse prevention and motor safeguards, paired with intuitive joystick or touch panel options for seamless control.
Hardened Spiral Bevel Gears: Optimize efficiency for quieter runs and superior torque transfer, even under heavy loads.
Sleek Hub Profile: Reduces water turbulence, boosting overall hydrodynamic performance and propeller efficiency.
Plug-and-Play Connections: Simplified wiring with easy-switch interfaces speeds up setup and troubleshooting.
These elements combine to create a thruster that’s not just powerful but smartly engineered for the demands of modern boating.
Detailed Technical Specifications
Specification
Details
Model
185TT 6.0 Gen2
Hub Material
Stainless Steel
Voltage
12V DC
Power Output
6.0 kW (equivalent to 8 HP)
Tunnel Diameter
185 mm
Max Thrust
97 kgf
Unit Weight
27 kg
These specs make it ideal for mid-sized boats where space and power must balance perfectly.
Streamlined Installation Tips for DIY or Pro Setup
Installing the Lewmar 185TT is straightforward, thanks to its modular design. Start by verifying your hull’s tunnel alignment—ensure at least 110mm clearance fore and aft for optimal flow. The included 2-meter motor cable reaches most battery banks, and the Blue Box ICU simplifies electronic integration. Secure the stainless steel hub with marine sealant, torque bolts to spec, and connect via color-coded plugs. Pro tip: Test in water post-install to confirm zero vibration, a sign of flawless alignment. Most installs wrap up in a weekend, minimizing haul-out time.
Effortless Maintenance for Years of Trouble-Free Use
Forget annual teardowns. The no-reservoir setup and high-seal integrity mean routine checks focus on visual inspections and prop clearance. Flush with fresh water after saltwater exposure, and the self-resetting thermal cutouts handle any heat spikes automatically. Owners report decades of service with basic care, far outpacing competitors vulnerable to seal failures.
Complete Kit for Immediate Deployment
Your package arrives ready to go: the full Lewmar 185TT 6.0kW Gen2 thruster unit, 2-meter motor cable for flexible routing, and the essential Blue Box ICU for electronic smarts. No hunting for extras—just bolt on and boost your boat’s agility.
Frequently Asked Questions
What size boats is the Lewmar 185TT suitable for?
This thruster shines on displacement hulls from 40 to 50 feet, providing ample 97 kgf thrust for safe maneuvering in harbors or rivers.
