Modulite Protector 5-Way Flat w/ Integrated Circuit and Overload Protection

Modulite Protector 5-Way Flat w/ Integrated Circuit and Overload Protection

Item # 119177

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119177 - Plug and Lead Tekonsha Trailer Connectors
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  • Trailer Connectors
  • Vehicle End Connector
  • 5 Flat
  • Plug and Lead
  • Tekonsha
Modulite Protector with Integrated Circuit & Overload Protection Lowest Prices for the best wiring from Tekonsha. Modulite Protector 5-Way Flat w/ Integrated Circuit and Overload Protection part number 119177 can be ordered online at or call 800-298-8924 for expert service.

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  • Reviews (2)
  • Q & A (11)
  • Videos (1)
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Tekonsha Wiring - 119177

Modulite Protector with Integrated Circuit & Overload Protection


  • Standard 5-Flat connector for backup light or surge brake lockout circuit
  • Works with 2 or 3 wire light systems
  • Works with either LED or incandescent bulbs
  • 7.5 amps for the tail light circuit and 4.2 amps for the turn/stop & backup circuits
  • Blue wire designed to override surge coupler for backing up
  • Will also work with standard 4-flat connector
  • Has integrated re-settable short circuit and overload protection
  • The trailer brakes will override the hazard lamps when the brake is activated
  • Designed not to send feedback through vehicle circuits
  • Upgraded circuitry works with vehicles that use a pulse width modulation (PWM); this gives the trailer lights full brightness
  • Double-sided tape for mounting
  • Draws power directly from the tow vehicle battery; uses less than 5 milliamps of the vehicle circuit

119177 Modulite Protector w/Integrated Circuit & Overload Protection

119177 Installation InstructionsInstallation Details 119177 Installation instructions

California residents: click here

Video of Modulite Protector 5-Way Flat w/ Integrated Circuit and Overload Protection

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Tekonsha Wiring - Trailer Connectors - 119177 Review

Today we're going to review part #119177. This is the Tow Ready ModuLite heavy duty protector with the 5-way flat connector and an integrated circuit and overload protection. This part will provide the 5-way flat trailer connector at the back of your tow vehicle to power your trailer signal lights. Also on a standard 5-way connector it also is designed to provide the backup light or surge brake lockout circuit. The blue wire right here is designed to override your surge coupler for backing up. This will also work with your standard 4-way flat connector.

This is designed to work with a 2 or a 3 wire light system. Basically a 2 wire system has the same bulb for stop and turn signals. The 3 wire will have separate bulbs for the stop and turn signals. This part will work with either LED or incandescent bulbs on both the vehicle and the trailer. This is rated for up to 4.2 amps for the turn and stop circuit, 7.5 amps for the taillight circuit, and the 4.2 amps for the backup circuit. On the inside of this ModuLite it has an integrated re-settable short circuit and overload protection and the trailer brakes will override the hazard lamps when the brake is activated.

This is designed not to send feedback through the vehicle circuit. Does use upgraded circuitry to work with the vehicles that use the PWM or the pulse width modulation system. This gives the trailer lights full brightness. This will draw full power directly from the tow vehicle battery. This black wire right here will connect to your battery of your tow vehicle, and when it's connected it uses less than 5 mA of the vehicles circuit. This part does include everything shown here.

Has a nice set of detailed instructions that tell you how to make your connections and even pictures of where your connections are made. Comes with this 5-way dust cap that goes over the 5-way connector. Comes with a piece of double-sided tape for connecting your ModuLite down to keep it from moving around, 5 wire connectors for connecting your wires to your tow vehicle, a grounding screw if needed, and a fuse because when you connect to your battery you want to make sure you put an in-line fuse before you connect it. Also we do sell, if you want, because when you run your power wire to your battery you're going to need wire to go up to the front in your in-line fuse holder. We do sell an optional install kit which is part #118151. We sell that separately and it's listed on this product page as a related product.

That makes the installation a lot easier because it'll include all the wires and connectors and the in-line fuse holders that you need. Just real quickly, to show you how this would install is you'll mount this to the back of your vehicle with the double-sided tape. The bonded wire right here that the 5-way is connected to would be made to run out the back of the vehicle and plug into your trailer. When it's not being used you can just store it in the back. Take your 5-way or the dust cover and that'll just attach to the 5-way itself. Just stretch it on like that and then when you're not connected to the trailer you can just put your dust cap over the 5-way and that'll protect those terminals from any damage or from the elements. When you go to make your connections, what you'll want to do is the wires right here connecting to your tow vehicle, the green wire, the extra length of wire is what's for the passenger side, so you'll run this all the way over to the passenger side. Use a wire connector, tap this into your passenger side right turn signal. The yellow wire is for the drivers side left turn signal. Again using a wire connector you'll tap into the drivers side turn signal. The brown wire is for your taillight connection. Again you'll tap this into the taillight connection. The red wire is for the, if it's on a 3 wire system and it'll say right here on here, it's a 3 wire system it'll attach to the stop light circuit. If it's only on a 2 wire system, you just have to ground this red wire. Then your remaining wires here, the white wire with the islet on it is connected to a good clean ground. If you can't find one they include a grounding screw that you can drill a hole and make a good clean ground. Again the blue wire we had mentioned earlier, this is what is designed to attach to override your surge coupler for backing up or if you're just using it for reverse light circuit connect it to that. The remaining wire with the butt connector on it is for the power wire. Again you'll run this all the way to the front. You'll use a length of wire, run this to the battery, run it through an in-line fuse holder and that'll supply the power to the ModuLite. That should do it for the review on part #119177. This is the Tow Ready ModuLite heavy duty protector with the 5-way flat connector and integrated circuit and overload protection. .

Customer Reviews

Modulite Protector 5-Way Flat w/ Integrated Circuit and Overload Protection - 119177

Average Customer Rating:  5.0 out of 5 stars   (2 Customer Reviews)

Modulite Protector with Integrated Circuit & Overload Protection

- 119177

Still working perfectly, with zero issues to date. 669729

- 119177

After another store botched my SUV wiring installation leading to a short circuit and a need to rewire, I found this item for a great price. I wired it myself. It was simple and has worked perfectly with my LED lights and new trailer wiring. Very happy. 249774


Ask the Experts about this Tekonsha Wiring

Do you have a question about this Wiring?

  • How To Convert a Euro 13-Pin to a US 5-Way Trailer Connector
  • If the trailer has reverse lights then you will want to use the Modulite Protector 5-Way Flat part # 119177 instead of the Upgraded Tail Light Converter part # 119130 on your 2011 Volkswagen Jetta. Then in order to make an adapter that attaches the Euro 13-Pin connector on your trailer to the US 5-Way connector on your vehicle you will need the following: Hopkins Wiring Harness with 5-Pole part # HM37918 Curt 2-To-3-Wire Tail Light Converter part # C56196 Vehicle Side Euro 13-Pin Connector...
    view full answer...

  • Recommendation to Install 5-Way Connector on 2008 Honda Ridgeline
  • The Tekonsha Modulite Protector 5-Way Flat # 119177 referenced in your question is a universal harness that can be installed on your 2008 Honda Ridgeline. This hardwire kit will require you to splice in all of the wires to the tail light wires on your Honda Ridgeline to give you the needed 5-Way to connect with your boat trailer. With this in mind, an easier option will be to simply install the Tekonsha T-One Vehicle Wiring Harness # 118400. This custom-fit, 4-Way harness will connect...
    view full answer...

  • Availability of 5-Pin Flat Connector That Retains Separate Stop and Turn Signals for 2016 VW Golf
  • Since pretty much every trailer has the stop signal integrated with the left and right turn signals it has just become the standard wiring configuration and that is why it can be difficult to find something. Despite this, we actually do have the solution you are looking for. Tekonsha has their Modulite Protector 5-Way Flat w/ Integrated Circuit and Overload Protection # 119177 which will work in the same manner as the wiring kits that you see are a fit for your 2016 Volkswagen Golf....
    view full answer...

  • Trailer Wiring Harness For 2006 Toyota Sienna
  • Sounds like you have your work cut out for you. First, you said you want to buy the Tow Ready Custom Fit Vehicle Wiring, part # 118304, and change the converter to a powered converter. You can use the Tow Ready Modulite Protector 5-Way, part # 119177, and splice the converter into the wires for the connectors that are used on the # 118304. You would need to run the wires from the # 119177 as shown in the attached drawing. Any modification to the wiring kits will void the manufacturer's...
    view full answer...

  • 5-Way Trailer Wiring Harness Recommendation for a 2008 BMW X5
  • Since all of the trailer wiring options we have for your 2008 BMW X5 are hardwire options the best solution will be to use the # 119177 which is also a hardwire option but it comes with a 5-way that you can wire the reverse light circuit to. This way you wouldn't have to deal with any adapters.
    view full answer...

  • Can a 5-Way Hardwire Trailer Wiring Harness be Installed on a 2004 BMW X5
  • Yes, you can use a 5-Way hardwire trailer wiring harness on your 2004 BMW X5 but I recommend # 119177KIT since it comes with the additional wiring and other parts you will need to complete the installation.
    view full answer...

  • Which Trailer Wiring Harness Kit Will Provide a 5-Way Flat Trailer Connector on a 2010 Ford Escape
  • We have a couple different options that will work to give you the 5-way connector on your 2010 Ford Escape for your reverse LED lights or reverse lockout solenoid circuit. The easiest route may be to get the T-One Vehicle Wiring Harness, # 118551, and the 4-way to 5-way Adapter, # 20036. There is minimal splicing involved with this application. The wiring harness will not have to splice into the vehicle wires, but the additional blue wire from the adapter will have to splice into the...
    view full answer...

  • 2017 Nissan Armada 5-Way Trailer Wiring Harness Recommendation
  • The Tekonsha Modulite Protector 5-Way Flat # 119177 is what you are going to need to install a 5-way in your 2017 Nissan Armada. This will require you to splice into your vehicle's wiring for all the circuit including the reverse light. Since the reverse light is in the rear hatch of your vehicle you'll have to find the wiring harness up near the hatch hinge that has all of the taillight wiring and test all of the wiring there till you find the circuit that has power only when the vehicle...
    view full answer...

  • 4-Way to 5-Way Adapter for 2013 Chevy Malibu
  • The adapter you need is the part # 20036 which will convert your vehicle's 4-way to a 5-way. The 5th pin will get ran to the reverse light circuit of your vehicle.
    view full answer...

  • Will Trailer Wiring Harness # 119177 Fit a 2007 Dodge Ram 2500
  • You could use trailer wiring harness # 119177KIT if you needed a 5-Way flat trailer connector. However the 5th function is not for trailer brakes it is made for use with a trailer that has an electric reverse lock out on a surge coupler. When the vehicle is put in reverse it sends power to the solenoid which does not allow brake fluid to go back to the trailer brakes so the trailer can back up without the brakes engaging. If your truck did not come with any kind of trailer wiring...
    view full answer...

  • Tow Ready Wiring Kit # 119177 Recommendation for 1995 Volvo 850 Pulling a Trailer with Surge Brakes
  • For your 1995 Volvo 850 I would recommend that you install a Tow Ready Wiring Harness Kit, part # 119177, like the one you referenced. This product has a 5-way connector that would provide you with a reverse lockout solenoid circuit and would work well for you. I attached installation instructions below for you to check out also.
    view full answer...

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Info for this part was:

Expert Research:
Michael H
Expert Research:
Jameson C
Installed by:
Jeff D
Updated by:
Adele M
Updated by:
Laura H
Updated by:
Alexander C
Updated by:
Isabelle B

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