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Lewmar Legacy Thruster Converter (Molex)Upgrading your boat's thruster system doesn't have to mean ripping out old wiring or starting from scratch. The Lewmar Legacy Thruster Converter steps in as the perfect bridge, seamlessly adapting newer Gen 2 controllers to your existing Gen 1 thruster wiring. Whether you're maneuvering a sailboat in tight marinas or fine tuning position on a power yacht, this converter ensures precise, responsive control without the headaches of a full retrofit.
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Upgrading your boat's thruster system doesn't have to mean ripping out old wiring or starting from scratch. The Lewmar Legacy Thruster Converter steps in as the perfect bridge, seamlessly adapting newer Gen 2 controllers to your existing Gen 1 thruster wiring. Whether you're maneuvering a sailboat in tight marinas or fine-tuning position on a power yacht, this converter ensures precise, responsive control without the headaches of a full retrofit.

Designed specifically for Lewmar TT thrusters, it works across blue box and black box models, letting you mix generations effortlessly. Boat owners love how it preserves their current setup while unlocking modern controller features like improved tactile feedback for single or dual thruster installs.

Why Boat Owners Choose the Legacy Thruster Converter

  • Seamless Compatibility: Pairs Gen 2 controllers with Gen 1 wiring, fitting all Lewmar TT thrusters—blue box current models or older black box units. No need for multiple converters; just one per thruster does the job.
  • Minimal Disruption: Leverages your boat's existing wiring, slashing installation time and costs. Mount it right next to the controller for a clean, professional setup.
  • Enhanced Control: Delivers the superior tactile response of Lewmar's latest controllers, making docking smoother and more intuitive, even in wind or current.
  • Future-Proof Upgrade: Ideal for replacing outdated controllers on black box thrusters, bringing them up to speed with black box advancements without overhauling your system.

Simple Installation for Real-World Boating

Getting this converter up and running is straightforward, even if you're handling it DIY during a weekend haul-out. Position it adjacent to your thruster controller—typically in the helm station or engine room for easy access. Connect via the Molex plug system for secure, weather-resistant links that stand up to marine environments.

Pro tip: Before installing, double-check your thruster model's box color (blue for newer TT series, black for legacy) and test connections with a multimeter to avoid electrical gremlins. It's plug-and-play for most setups, but consulting your thruster manual ensures perfect alignment. Once connected, calibrate the controller for optimal thrust response tailored to your hull size and load.

Common Pairings

  • Bow thrusters on mid-size cruisers (12-50 ft)
  • Stern thrusters for twin-engine setups
  • Dual thruster systems on larger vessels needing precise handling

Maximizing Performance and Longevity

Beyond the basics, this converter shines in demanding conditions. It handles the power demands of thrusters from 50kgf to 250kgf thrust, maintaining efficiency without voltage drops. Saltwater exposure? The rugged Molex connectors resist corrosion, but a yearly rinse with freshwater keeps things pristine.

For heavy users, pair it with Lewmar's joysticks for proportional control—think variable speed for gentle nudges versus full bursts. Owners report fewer battery drains and crisper maneuvers post-upgrade, especially when retrofitting older black box thrusters that felt sluggish.

"Swapped my old controller without touching the wiring—docking my 40-footer feels like a new boat now." – Experienced yacht owner

Frequently Asked Questions

What does the Lewmar Legacy Thruster Converter do?

It converts Gen 2 thruster controllers to work with Gen 1 thruster wiring, enabling compatibility between newer controllers and older Lewmar TT thrusters with blue or black boxes.

Is one converter enough for dual thruster setups?

Yes, but you'll need one converter per thruster. For dual installations, install two for independent control on bow and stern.

Can I use my existing boat wiring with this converter?

Absolutely—it's designed for easy retrofitting, reusing your current wiring to minimize installation effort.

Where should I install the Legacy Thruster Converter?

Mount it next to the thruster controller, such as at the helm or in the thruster compartment, for straightforward connections.

Does it work with both blue box and black box Lewmar thrusters?

Yes, it bridges the gap, allowing new Gen 2 controllers on blue box thrusters or upgrading black box models without rewiring.

Is the Molex connection suitable for marine environments?

Definitely—Molex connectors provide secure, waterproof seals that withstand vibration, salt spray, and humidity common in boating.

Will this improve thruster control responsiveness?

Yes, pairing with Lewmar's latest controllers enhances tactile feedback and precision, making maneuvers more intuitive.

Legacy Thruster Converter (Molex)

Lewmar’s new range of thruster controllers provides superior tactile control of single or dual thruster installations. 

Converts Gen 2 Thruster Controllers to Gen 1 Thruster Wiring.  The controllers can be fitted to all Lewmar TT thrusters (Blue box) and to the previous generation TT thrusters fitted with a Black box, using this controller converter. 

Only one legacy converter is required per thruster.

Features:

  • Upgrade kit allows replacement of the previous generation controller with the new Black box thrusters 
  • Easy-fitting - Existing boat wiring can be used 
  • Needs to be installed next to the controller 

*Sold as an Individual

Lewmar Black ox Converter

Model: 589842
  • Upgrade kit allows replacement of the previous generation controller with the new in thrusters with black box
  • Easy-fitting / Existing boat wiring can be used
  • Needs to be installed next to the controller

The controllers can be fitted to all Lewmar TT thrusters fitted with a blue box and to the previous generation TT thrusters fitted with a black box using a controller converter.



"Lewmar Black ox Converter. The controllers can be fitted to all Lewmar TT thrusters fitted with a blue box and to the previous generation TT thrusters fitted with a black box using a controller converter."
SKU: NVN-94262
MPN: 589842
UPC: 743683033117

Lewmar Legacy Thruster Converter (Molex)

Item no : 91154690947
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US$ 175.79
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