Tekonsha® 3040 - 2-Plug Brake Control Wiring Adapter

51 reviews / Item # mpn2412219
Tekonsha® - 2-Plug Brake Control Wiring AdapterTekonsha® - 2-Plug Brake Control Wiring AdapterTekonsha Authorized Dealer
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Tekonsha Accessories

2-Plug Brake Control Wiring Adapter (3040) by Tekonsha®. Comes in Bagged package. Wire up your tow vehicle and trailer with whatever it takes to get your trailer lights on, the electric brakes slowing down, and the trailer battery charging. From simple wiring connectors, to connectors and harness that lets you plug directly into your tow vehicle harness, to adapters that let your 3-wire car turn signals successfully operate your 2-wire trailer lights, we have the electrical solutions for your towing needs. One-year warranty.



  • Plug and Play T-harnesses to connect to vehicle wiring
  • Trailer wiring connectors, for both truck and trailer
  • 4- 5- 6- and 7-pin trailer connectors
  • Adapters for almost any permutation of mismatched connectors
  • Premade trailer harnesses
  • 2-wire to 3-wire lighting adapters for vehicles with separate turn and brake indicators
  • Power modules and converters to avoid overtaxing vehicle circuits on PWM or multiplexed systems requiring 2, 3 or 4 wire hookup

Wiring for your trailer can be as simple as plugging in a premade harness to your truck's rear lights, totally brainless. If you aren't fortunate enough to have a truck that we have a t-harness for, well, you may have to splice some wires, no big deal. It seems there are a bewildering number of different trailer connection plugs, from simple flat 4- wire plugs to 7-blade plugs as big as an apple. We have adapters to let you plug almost any trailer into any truck that's wired for a trailer.

Next problem: your car or truck has separate turn signals and brake lights. Trailers almost always use integrated brake/turn signals. Fortunately, we have adapters that intercept the signals to the trailer lights and make everything blink when it's supposed to.

Intelligent trailer braking is the key to the success of the Tekonsha family of braking products. Established in 1964, Tekonsha technology can be found in some of North America's leading vehicle manufacturers… a testimony to it's superior performance history when it comes to stopping trailers. Smooth, predictable stopping at all speeds has made Tekonsha’s Prodigy®, Primus® and Voyager® trailer brake controls "best of class" and the most popular available today. As the industry leader in electric trailer brake controls and breakaway systems remember… "No matter what you are towing, Tekonsha can help you stop it".

Part Number:

Vehicle Fitment

This part is compatible with 82 vehicle(s)
Year Make Model Fitment Notes:
2015 Lexus GX
  • Base
2015 Lexus LX
2015 Toyota Land Cruiser
  • Base
2015 Toyota Sequoia
2015 Toyota Tacoma
  • Base
2014 Lexus GX
  • Base
2014 Lexus LX
2014 Toyota Land Cruiser
  • Base
2014 Toyota Sequoia
2014 Toyota Tacoma
  • Base
2014 Toyota Tundra
2013 Lexus GX
  • Base
2013 Lexus LX
2013 Toyota 4Runner
2013 Toyota Land Cruiser
  • Base
2013 Toyota Sequoia
2013 Toyota Tacoma
  • Base
2013 Toyota Tundra
2012 Lexus GX
  • Base
2012 Toyota 4Runner
2012 Toyota Sequoia
2012 Toyota Tacoma
  • Base
2012 Toyota Tundra
2011 Lexus GX
  • Base
2011 Lexus LX
2011 Toyota 4Runner
2011 Toyota Land Cruiser
  • Base
2011 Toyota Sequoia
2011 Toyota Tacoma
  • Base
2011 Toyota Tundra
2010 Lexus GX
  • Base
2010 Lexus LX
2010 Toyota 4Runner
2010 Toyota Land Cruiser
  • Base
2010 Toyota Sequoia
2010 Toyota Tacoma
  • Base
2010 Toyota Tundra
2009 Lexus GX
2009 Lexus LX
2009 Toyota 4Runner
2009 Toyota Land Cruiser
  • Base
2009 Toyota Sequoia
2009 Toyota Tacoma
  • Base
2009 Toyota Tundra
2008 Lexus GX
2008 Lexus LX
2008 Toyota 4Runner
2008 Toyota Land Cruiser
  • Base
2008 Toyota Sequoia
2008 Toyota Tacoma
  • Base
2008 Toyota Tundra
2007 Lexus GX
2007 Lexus LX
2007 Toyota 4Runner
2007 Toyota Land Cruiser
2007 Toyota Sequoia
2007 Toyota Tacoma
  • Base
2007 Toyota Tundra
2006 Lexus GX
2006 Lexus LX
2006 Toyota 4Runner
2006 Toyota Land Cruiser
2006 Toyota Sequoia
2006 Toyota Tundra
2005 Lexus GX
2005 Lexus LX
2005 Toyota 4Runner
2005 Toyota Land Cruiser
2005 Toyota Sequoia
2005 Toyota Tundra
2004 Lexus GX
2004 Lexus LX
2004 Toyota 4Runner
2004 Toyota Land Cruiser
2004 Toyota Sequoia
2004 Toyota Tundra
2003 Lexus GX
2003 Lexus LX
2003 Toyota 4Runner
2003 Toyota Land Cruiser
2003 Toyota Sequoia
2003 Toyota Tundra
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Product Reviews


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Tekonsha® - 2-Plug Brake Control Wiring Adapter
Tekonsha® 3040 - 2-Plug Brake Control Wiring Adapter
Average Rating: 5 of 5
5 of 5
Tekonsha® 3040 Brake Control Wire Adpt.
2003 Toyota 4Runner / Posted by (Yakima, WA) /

I purchased this adapter to ease my installation of the Tekonsha® 90885 Prodigy™ P2 Electronic Brake Control. Not wanting to cut and splice wires in my new 4Runner, I was happy to find that CARiD had this in stock. Installation was a snap. Once I found the pre-wired female connector that Toyota puts into their 4Runners now, all I had to do was plug this adapter into my vehicle and plug the other end into the brake controller and I was all set. No cutting, no splicing, plus, everything worked!

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Tekonsha® - 2-Plug Brake Control Wiring AdapterTekonsha® 3040 - 2-Plug Brake Control Wiring Adapter    
51 reviews
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