Lewmar 185TT 4.0 Kw 5.4HP Gen2 24v Bow Thruster
Lewmar 185TT 4.0 Kw 5.4HP Gen2 24v Bow Thruster — Product description
Discover effortless maneuvering with the Lewmar 185TT Gen2 bow thruster, designed for boaters who demand precision and reliability during tight dockings and harbor navigations. This 24V model delivers 65 kgf of thrust through a compact 185mm tunnel, making it ideal for mid-sized vessels where space and performance matter most. Engineered without a hydraulic reservoir, it eliminates leaks and routine upkeep, letting you focus on the water rather than the workshop.
Why Choose the Lewmar 185TT Gen2?
Unlike traditional thrusters that struggle with uneven thrust or noisy operation, the Gen2 series stands out with its innovative 5-blade propeller design. This ensures balanced power in both directions, providing confident control whether porting or starboarding. The spline-driven prop eliminates shear pins, reducing downtime and enhancing durability in saltwater environments. Paired with a hardened spiral bevel gear, it transmits power quietly and efficiently, minimizing vibrations that can fatigue hull structures over time.
Smart black box electronics act as a safeguard, preventing overloads and integrating seamlessly with joystick or touch panel controls. Self-resetting thermal protection on the motors keeps things running cool under prolonged use, perfect for those extended cruising days. The high-integrity seal and stainless steel hub further bolster its resistance to corrosion, ensuring years of trouble-free service.
Performance in Real-World Boating Scenarios
Imagine gliding into a crowded marina with crosswinds challenging your approach. The 4.0 kW (5.4 HP) motor punches through currents, offering responsive bursts that make solo handling feasible. Boaters upgrading from older models rave about the minimum silhouette hub, which optimizes water flow for smoother operation and less drag at speed. Its lightweight 20 kg build simplifies retrofits into existing tunnels, without compromising on the robust construction Lewmar is known for.
Technical Specifications
| Specification | Details |
|---|---|
| Model | 185TT 4.0 |
| Hub Material | Stainless Steel |
| Voltage | 24V |
| Power | 4.0 kW (5.4 HP) |
| Tunnel Size | 185 mm |
| Thrust | 65 kgf |
| Weight | 20 kg |
Easy Installation and What's Included
Installation is straightforward with plug-and-play switch connections and a 2-meter motor cable, reducing wiring headaches. The included Blue Box ICU (Interface Control Unit) handles electronics intelligently, supporting both joystick and touch controls for customizable setups. No specialized tools needed beyond standard marine fittings—many owners complete the job in a weekend.
- Lewmar 185TT 4.0 kW Gen2 Thruster
- 2-Meter Motor Cable
- Blue Box ICU
Maintenance Tips for Longevity
Thriving in demanding marine conditions starts with simple habits. Rinse the unit with fresh water after saltwater exposure to protect the seals. Periodically inspect the tunnel for marine growth, and rely on the self-resetting thermal cutouts to handle heavy use. With no fluids to check or replace, your time stays on the helm, not under it.
Frequently Asked Questions
What makes the Lewmar 185TT Gen2 different from hydraulic bow thrusters?
The Gen2 electric model skips the hydraulic reservoir entirely, avoiding leaks, fluid maintenance, and complex plumbing. It offers instant response with equal thrust in both directions via 5-blade props.
Is the 185TT suitable for boats over 15 meters?
Yes, its 65 kgf thrust excels on displacement hulls up to 18-20 meters, depending on windage and current. Check hull specifics for optimal fit.
How do I control the Lewmar 185TT thruster?
Choose from joystick for tactile precision or touch panel for sleek integration. The black box electronics ensure safe, misuse-proof operation.
Does it require special maintenance?
Minimal— no fluids or reservoir checks. Rinse after use, inspect props annually, and let thermal protection handle overloads automatically.
Can I install this myself?
DIY-friendly with plug-together wiring and included cables. Ensure proper tunnel alignment and battery capacity for 24V systems.
What is the Blue Box ICU?
The Interface Control Unit manages power distribution, protects against faults, and enables easy control connections for reliable performance.
How quiet is the Gen2 compared to older models?
Significantly quieter thanks to the spiral bevel gear and optimized hub, reducing gear noise and water turbulence during operation.
Lewmar 185TT Tunnel Thrusters
Model: 590009- 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 4.0 |
| Hub | Stainless Steel |
| Voltage | 24V |
| Power (kw) | 4.0 |
| Tunnel size (mm) | 185 |
| Thrust(kgf) | 65 |
| Weight (kg) | 20 |
What's in the Box:
- Lewmar 185TT 4.0 Kw 5.4HP Gen Thruster, 2 Meter Motor Cable, and Blue Box ICU
SKU: NVN-1002650
MPN: 590009LEW
UPC: 743683033421
Technical specifications
| Brand | Lewmar |
| Model | Lewmar 185TT 4.0 Kw 5.4HP Gen2 24v Bow Thruster |
| SKU / MFR# | 1002650 |
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