The Lewmar 140TT Tunnel Bow Thruster is a high-performance maneuvering solution designed for larger motorboats and sailing yachts up to approximately 12–13 meters (40–45 ft). With its 2.0kW (2.7HP) motor and larger 140mm tunnel diameter, this model delivers increased thrust and improved control for vessels with higher windage and displacement.
Engineered for reliability and smooth operation, the 140TT features an optimized 5-blade composite propeller and a durable 12V electric motor. It ensures precise handling during docking, even in challenging marina conditions with wind and current.
Key Advantages
Enhanced Thrust for Larger Boats
Provides stronger lateral movement, ideal for heavier vessels and more demanding docking conditions.
140mm Tunnel Diameter
Larger tunnel improves water flow efficiency and maximizes thrust output.
Efficient 2.0kW Motor
Delivers reliable power while maintaining compatibility with standard 12V onboard systems.
Quiet & Low-Vibration Operation
Precision-balanced propeller and high-quality gearing reduce noise and vibration.
Corrosion-Free Composite Design
No anodes required, ensuring minimal maintenance and long service life.
Recommended Applications
- Motorboats up to 12–13 m
- Sailing yachts with higher windage
- Cabin cruisers and family yachts
- Performance cruising vessels
Technical Specifications
| Parameter |
Value |
| Model |
140TT |
| Power Output |
2.0 kW |
| Power (HP) |
2.7 HP |
| Voltage |
12 V |
| Tunnel Diameter |
140 mm |
| Max Boat Length |
up to 45 ft |
| Installation Type |
Tunnel |
| Propeller |
5-blade composite |
Dimensions
| Parameter |
Value |
| A |
123 mm |
| B |
209 mm |
| C |
140 mm |
| D |
71 mm |
Construction & Technology
Lewmar TT Thrusters feature advanced composite construction that:
- provides full corrosion resistance
- reduces system weight
- eliminates the need for zinc anodes
- increases durability and service life
The hardened and ground spiral bevel gears ensure maximum efficiency and smooth power transmission.
Installation & Compatibility
Installation should be carried out by a qualified marine electrician.
The system requires:
- correct cable sizing
- ANL fuse protection
- proper control panel wiring
- compliance with Lewmar installation diagrams
Compatible with:
- Lewmar joystick controls
- dual helm stations
- standard 12V onboard electrical systems
What’s Included
- Thruster unit
- Propeller
- Installation components
- (depending on kit) joystick and wiring
Why Buy from Gaelix Marine Service
- Professional bow thruster selection based on boat size and type
- Technical consultation and installation support
- Compatibility with Lewmar and Max Power systems
- Worldwide supply and delivery
- B2B and project-based solutions
Call to Action
Contact us for expert advice on selecting the right bow thruster for your vessel.
We will calculate the required thrust, recommend components, and provide a complete solution.
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