Lewmar

Lewmar 185TT 6.0Kw 8HP Gen2 12v Bow Thruster

SKU: 1000860 · UPC: 743683033346 · MPN: 590012
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02 · Overview

Lewmar 185TT 6.0Kw 8HP Gen2 12v Bow Thruster — Product description

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.

Does it require a separate hydraulic system?

No, its electric design skips hydraulics entirely—no reservoirs, pumps, or fluid maintenance needed.

How noisy is the Lewmar 185TT during operation?

Exceptionally quiet, thanks to hardened bevel gears and smooth-flow hub, often inaudible from the helm.

Can I control it with a standard joystick?

Yes, compatible with Lewmar joysticks or touch panels, featuring plug-together connections for quick setup.

What protections does it have against overheating?

Built-in self-resetting thermal switches on motors cut power if needed, then resume automatically once cooled.

Is the propeller reversible for equal thrust?

Precisely—five-blade props ensure identical power both ways, spline-driven without shear pins.

LEWMAR 185TT Tunnel Thrusters

Model: 590012
  • No reservoir to install, no leaks and no maintenance
  • High performance 5 blade propellers give equal thrust in both directions
  • High integrity seal
  • Spline driven propeller, no drive pin required
  • Black box electronics prevents misuse and protects motor
  • Hardened and ground spiral bevel gear for maximum efficiency and quiet power transmission
  • Self resetting thermal protection on all motors
  • Choice of Joystick or Touch Panel controls
  • Easy plug together switch connections
  • Minimum silhouette hub for smooth water flow

185TT Tunnel Thrusters

Specifications
Model 185TT 6.0
Hub Stainless Steel
Voltage 12V
Power (kw) 6.0
Tunnel size (mm) 185
Thrust(kgf) 97
Weight (kg) 27

What's in the Box:
  • Lewmar 185TT 6.0Kw 8HP Gen Thruster, 2 Meter Motor Cable, and Blue Box ICU


"Lewmar \u00b7 8 hpGreat care and attention to detail goes into the design and manufacture of every Lewmar thruster. High performance, ease-of-use and reliability are Lewmar's priorities. In order to achieve that, every thruster they make includes the features below. If you choose a Lewmar thruster, one thing is certain; you need never worry about a tricky docking maneouvre again."
SKU: NVN-1000860
MPN: 590012
UPC: 743683033346
03 · The numbers

Technical specifications

BrandLewmar
ModelLewmar 185TT 6.0Kw 8HP Gen2 12v Bow Thruster
SKU / MFR#1000860

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04 · Before you buy

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05 · Customer voices

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