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.
