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Modulite Circuit Protected Power Converter w/ 5-Way Flat, Hardwire Kit, and Tester

Modulite Circuit Protected Power Converter w/ 5-Way Flat, Hardwire Kit, and Tester

Our Price: $74.91
Custom Fit Vehicle Wiring
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Shipping Weight: 1.94 lbs
Tekonsha Custom Fit Vehicle Wiring - 119177KIT
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Modulite Protector with Integrated Circuit & Overload Protection, Hardwire Kit and Tester 1-833-496-1390 to order Tekonsha custom fit vehicle wiring part number 119177KIT or order online at Free expert support on all Tekonsha products. Great prices and Fastest Shipping for Modulite Circuit Protected Power Converter w/ 5-Way Flat, Hardwire Kit, and Tester. Custom Fit Vehicle Wiring reviews from real customers.
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Tekonsha Custom Fit Vehicle Wiring

  • Universal Fit
  • Trailer Hitch Wiring
  • 5 Flat
  • Powered Converter
  • Tekonsha

Modulite Protector with Integrated Circuit & Overload Protection, Hardwire Kit and Tester


  • 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

Included with Hardwire Kit:

  • Modulite Wiring Harness (119177)
  • Modulite Install Kit (118151)
    • 20' of 12-gauge wire, ring terminals, and inline fuse for battery connection
  • Circuit tester
    • To help find wires behind vehicle tail lights to gather signals
  • (5) Quick splice wiring connectors
    • Makes tapping into wires quick and easy
  • LED 5 Pole Cover
    • Protects 5-pole connector from the elements

119177KIT Modulite Protector w/Integrated Circuit & Overload Protection, Hardwire Kit and Tester

Item # 119177KIT

Installation Details 119177KIT Installation instructions

California residents: click here

Customer Satisfaction Score:

Customer Reviews

Modulite Circuit Protected Power Converter w/ 5-Way Flat, Hardwire Kit, and Tester - 119177KIT

Average Customer Rating:  4.5 out of 5 stars   (2 Customer Reviews)

Modulite Protector with Integrated Circuit & Overload Protection, Hardwire Kit and Tester


Nice product. Works as intended. Only problem is the lack of a mounting bracket. The plastic case has a slot molded in for a bracket - but no bracket is included! A couple of adhesive mounting tabs and cable ties might hold it, but I wouldn't risk the consequences of dragging it down the road when it falls off. I made up the aluminum bracket that should have been included.


Works great. I have a very tricky install due to a large bundle of wires and finding the right connections. Tailgate lights function differently between being open and closed. Had no issues once installed.


See what our Experts say about this Tekonsha Custom Fit Vehicle Wiring

  • 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...
  • Installing Tow Ready Modulite Power Converter, 5-Way Flat on 2012 Mercedes Sprinter
    The Tow Ready Modulite Power Converter 5-Way Flat and Circuit Protection # 119177KIT is a universal installation application, so we do not have specific installation instructions for a 2012 Mercedes-Benz Sprinter. You will want to splice the wiring harness into the Sprinter's factory wiring using the included quick-splice connectors. When we installed a similar wiring harness on a 2013 Sprinter, the wiring connections were made a couple of inches before the taillight connector at the...
    view full answer...
  • Will the 5 pole Wiring Harness Fit on a 2004 VW Touareg V8 with No Electrical Problems
    The Universal Power Converter 5-Way Flat and Circuit Protection with Hardwire Kit and Tester, item # 119177KIT, is compatible with your Toureg. This wiring harness will install the same as the wiring harness that is recommended for your vehicle, item # 119176KIT, with the exception of the extra blue wire that is connected to the vehicle reverse light circuit for locking out surge brakes on boat trailers. The reverse light circuit is also circuit protected to protect your vehicles sensitive...
    view full answer...
  • Trailer Wiring Needed to Tow a Boat Trailer with a 2011 Land Rover
    You are not being mislead. The line of Land Rover vehicles have European wiring, sensitive circuitry and computers that require a circuit protected and converted wiring system for towing American made trailers with combined trailer lighting. Since you mentioned a 5-Way connector, you would also need to protect the circuit coming from your vehicles reverse light circuit. The only wiring harness that we stock that provides protection for the reverse light circuit is the Tow Ready 5-Way Wiring...
    view full answer...
  • 5-Way Trailer Wiring Recommendation for a 2004 Mitsubishi Montero Sport
    The Modulite Power Converter 5-Way Flat # 119177KIT would be exactly what you would need. You will be able to hardwire this kit to your 2004 Mitsubishi Montero Sport taillight wiring and you will have a fully functional 5-way. Check out the install instructions I attached for more info.
    view full answer...
  • 5-Pole Flat Modulite Wiring Harness for 2006 Infiniti G35
    We do indeed offer a 5-pole flat connector Modulite wiring harness for your 2006 Infiniti G35, Tow Ready part # 119177KIT. That item is an all-inclusive installation kit with connectors, circuit tester and everything needed for complete installation. This harness works with both standard incandescent and LED-type trailer lighting and it is compatible with both 5-pole and 4-pole trailer-side connectors. Written instructions are linked for your review.
    view full answer...
  • Troubleshooting Trailer Running Lights Not Functioning on a 2009 Honda Pilot
    Depends on the amperage draw of your trailer running lights and what the license plate light circuit or running light circuit of your 2009 Honda Pilot is rated for. If the taillight circuit of your Pilot can handle the additional draw of your trailer running lights you might be okay for a temporary situation like getting back home so that you can fix it. But I would not recommend this as a permanent solution as you could blow some fuses or damage wiring. You might first check the trailer...
    view full answer...
  • How to Find the Reverse Light Circuit for 5 Way Install on a Toyota Sienna 2014
    I can help you figure out which wire you will need to use, but I do not know which color wire you would need. Since your reverse lights are in the rear hatch of your 2014 Toyota Sienna you will want to find test the wires that are in the rubber wire loom that should be at the top of the hatch between the door and the threshold for the door. In that loom there should be the circuit that has the reverse light circuit. Once you find it there you can then take apart the inside interior pieces...
    view full answer...
  • Troubleshooting New Tail Light Not Working on Trailer
    If your new tail light isn't working on your trailer you will just want to make sure you have it wired correctly with a secure ground. I am not sure what type of tail light assembly you installed but you will need to make sure that its power wire is connected to the running light wire on the trailer. A lot of lights will have a separate wire for ground (usually white) but many simply ground through their mounting hardware. In either case you will need to make sure it is connected to a...
    view full answer...
  • Is Tekonsha Trailer Wiring 119177KIT Compatible with 2021 Volkswagen ID 4
    Yes, the Tekonsha trailer wiring kit part # 119177KIT that you have now will work on your 2021 Volkswagen ID 4 as this is a universal style of trailer wiring that Tekonsha recommends for your vehicle.
    view full answer...
  • Recommended 5-Pole Trailer Wiring Harness for 2004 Volkswagen Jetta Wagon
    I do have a solution for you, however we do not currently have a wishbone harness available for the vehicle side. For your 2004 Volkswagen Jetta Wagon, I instead recommend using the Tekonsha Circuit Protected ModuLite Kit # 119177KIT. This is a hardwire kit that will provide a new 5-Flat connector at the rear of your vehicle. This is not a wishbone harness, however you can simply splice the two tail light wires on the vehicle to the brown wire on this harness and it will work the same...
    view full answer...
  • Powered Tail Light Converter for a 2008 BMW X3 and Trailer with Separate Brake and Turn Lights
    The # 119177KIT could be used on your 2008 BMW X3. However, in addition to the 5 wire converter, you will need another converter, # 118158. The reason is the 5 wire converter will combine the brake and turn signals. Since your trailer has separate turn and brake lights, the second converter is needed. The running light circuit will bypass the second converter. Only the ground, right turn/brake and left turn/brake will going into the converter. What I would do is cut off the 5-Way connector...
    view full answer...
  • Adding a 5-Way Trailer Connector to a 2012 Audi Q5 to Tow a Trailer with Electric Reverse Lockout
    The best option to add a fifth pin for the reverse light circuit on your 2012 Audi Q5 will be to install the Modulite Wiring Harness, # 119177KIT. The reverse light circuit on your vehicle likely uses pulse width modulation (PWM) like your other tail light circuits and would require a wiring harness with a powered converter box that can detect PWM. Since you already have a PWM wiring harness installed on your vehicle, you could just cut the wires from the input side of the converter box...
    view full answer...
  • Availability of 5-pole Flat Trailer Connector for 1994 Toyota Land Cruiser
    Although it's not a plug and play option, there is a hardwired option available, part # 119177KIT. This is a universal application, the inputs would wire into the right turn, left turn, brake, running light and reverse light circuit. The converter would ground to the vehicle frame and would be powered by its fused connection to the vehicle battery. The wiring harness includes a basic circuit tester, so you can probe the taillight wiring harnesses feeding the taillight assemblies to determine...
    view full answer...
  • Needing Trailer Wiring Harness to Operate Reverse Lamps on Trailer
    The Tow Ready T-One Vehicle Wiring Harness you referred to, part # 118640 will feed the trailer running lamps, brake lamps and right and left directional signals, but not reverse lamps. We do not have a plug and play wiring harness option that would provide a 5-pole, but you could hardwire one using part # 119177KIT. You would use the tester included in the kit to test the wires feeding the factory taillight assemblies to locate which wire carries the right turn, left turn, brake lamp,...
    view full answer...
  • Availability of a Taillight Converter With a 5-Pole Flat Trailer Connector for 2008 BMW X3
    Tow Ready offers a Modulite taillight converter with a 5 pole, part # 119177KIT. The converter is compatible with your X3, and provides the circuit tied in with the vehicle taillight to activate the lock-out on your surge coupler. I've linked you to an install video showing a different wiring harness being installed on an older X3. The procedure might be a bit different on your vehicle, but the video should give you a pretty good idea of what the installation involves. The blue wire from...
    view full answer...
  • Towing Trailer with 5-Pole Flat Trailer Connector Using Vehicle with European 7-Way
    We don't have an adapter available, but you can easily install a 5 pole connector to your vehicle using part # 119177KIT. The kit includes a circuit tester that you can use to probe the wires in the vehicle's taillight assemblies to determine which wire carries which circuit. The inputs of the converter would install as follows: Yellow wire to left turn signal circuit Green wire to right turn signal circuit White wire to ground Brown wire to running light circuit Blue wire to reverse...
    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 then...
    view full answer...
  • Comparing the ZCI Wiring Harness 119250KIT and the Modulite Harness 119177KIT on a BMW X5
    The difference between the Modulite Power Converter 5-Way Flat part # 119177KIT and the ZCI Circuit Protected Vehicle Wiring Harness part # 119250KIT is that the ZCI kit has clamp on sensors that receive signal from the tail light wires without actually splicing into them whereas the Modulite kit will need to physically splice into the wires in order to receive a signal from the tail lights. The ZCI kit also has a 4-way trailer connector and the Modulite has a 5-way trailer connector. However,...
    view full answer...
  • Recommended Trailer Wiring Harness for 2016 Toyota Highlander Towing Boat Trailer w/ Surge Coupler
    There are two different options available. You can use a plug and play wiring harness like the Tow Ready # 118449 along with an adapter like part # 47515. The 'extra' blue wire from the adapter would tap into the circuit feeding the reverse lights on the rear of the vehicle. This would be the easier installation, but it involves using an adapter. The other alternative would be a powered converter, part # 119177KIT. You'd access the taillight wiring harnesses behind the taillight assemblies...
    view full answer...
  • Availability of 5-Pole Trailer Wiring Harness for 2006 Ford Escape
    I'm assuming your trailer has surge, not electric brakes. When the tow vehicle brakes, the coupler compresses, which actuates the hydraulic brakes on the trailer. Some of these surge couplers have an electric lock-out, which releases the brakes when the vehicle backs up. Otherwise, if you were backing up an incline the trailer brakes would apply as you were trying to back up because the weight of the trailer would be compressing the surge coupler. There are two different ways of providing...
    view full answer...
  • Adding a 5-Way Trailer Connector to a 1999 Toyota 4Runner
    I am not sure why the 4-Way on your 1999 Toyota 4Runner does not have the brake light circuit already. Normally on a 4-Way flat trailer connector, the brake light signal is combined with the turn signals for each side. If your wiring harness does not have this set up then you do not want to splice in a wire from the brake light circuit because that would cause both trailer lights to blink with either turn signal on. I have the perfect solution for you. You can install a 5-Way flat converter,...
    view full answer...
  • Wiring Stop Tail and Turn Signal Lights on a Motorcycle with Separate Turn Signals and Brake Lights
    So it sounds like on the motorcycle you have working turn signals, brake lights, and tail lights. So you just need the proper converter to go from the separate signals to combined. You can use converter # RM-732. This is a non-powered converter that will take the separate brake and turn signals and combine them. You would attach the bike brake light wire to the red wire on the harness. Attach the motorcycle left turn signal wire to the harness yellow wire. Connect motorcycle right turn...
    view full answer...
  • 2011 VW Touareg 5-Way Trailer Wiring Recommendation
    It sounds like your 2011 Volkswagen Touareg doesn't have any trailer wiring and you are looking for the correct part to install a 5-way on it. We have exactly what you need. You would want the Tow Ready Wiring Harness part # 119177KIT. This comes with everything needed to install a fully functional 5-way trailer harness on your vehicle. You can also plug a 4-way into this 5-way. I attached a set of installation instructions for you to check out as well.
    view full answer...

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