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4-Pole Hardwire Kit with Circuit Tester

4-Pole Hardwire Kit with Circuit Tester

Item # 18252
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Wiring 18252 - Plug and Lead - Tekonsha
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Hardwire 4-pole trailer connector kit for vehicles with combined wiring - where the turn and brake signals are sent along the same wire. Quick-splice connectors and circuit tester included. Lowest Prices for the best wiring from Tekonsha. 4-Pole Hardwire Kit with Circuit Tester part number 18252 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
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Tekonsha Wiring - 18252

  • Trailer Connectors
  • Vehicle End Connector
  • 4 Flat
  • Plug and Lead
  • 6 - 10 Feet Long
  • Tekonsha

Hardwire 4-pole trailer connector kit for vehicles with combined wiring - where the turn and brake signals are sent along the same wire. Quick-splice connectors and circuit tester included.


Features:

  • Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights
    • Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately)
  • Connects quickly and easily
  • Tail light, stop and turn functions printed on wires
  • Ground wire runs full length of assembly
  • 18-Gauge bonded wires
  • Includes circuit tester and 4 quick-splice connectors


Specs:

  • Harness measures 72" long
  • Maximum amperage:
    • Stop/turn lights: 7.5 amps per circuit
    • Tail lights: 7.5 amps per circuit
  • Limited 1-year warranty


18252 4-Pole Hardwire Kit with Circuit Tester

20252 Alternate

Installation Details 18252 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Video of 4-Pole Hardwire Kit with Circuit Tester

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




Video Transcript for Trailer Wiring Harness Installation - 2013 Smart Fortwo

All right today in this 2013 Smart Car ForTwo, we're going to install part number 18252 from Tow Ready. OK, to start off our install, we need to get access to a wiring harness, so open the back hatch and the tailgate. Then we're going to remove two panels, one on each side. And then the floor panel, the bottom, well lift up as well. Then we'll take our wire harness and route it from underneath the plastic to the inside of the corner panel on the driver's side first. Then we'll go ahead and locate our wire harness. It's going to be the wires plugged directly into the taillight. So we'll go ahead and disconnect the connector from the taillight. Now we'll go ahead and test our wires.

There's a factory ground located nearby on the car, so we'll use that for a tester that comes with the kit. We'll take a clip and ground it, and then we user our tester to test the socket, find out which wire does what. Starting off, we'll look for a running light circuit. Turns out it's a brown wire with a light blue stripe. So we'll use a quick-splice connector that comes with the kit, and we'll go ahead and make our connection. After we make our connection, we'll go ahead and test it real fast to make sure we've got a good connection. Now we'll look for our left turn signal. Testing turned out to be black with a white stripe.

So we'll go ahead and connect our yellow wire to that wire. We'll go ahead and fix our ground for our wire harness. That'll be our white wire. We're going to add a separate ring terminal to it, then we're going to run it down to the factory ground. We'll tuck it behind the plastic and down to the ground. Once that's been attached, we'll go ahead and turn our attention to the green wire in the wire harness.

We'll also pull that underneath the plastic as well, towards the center of our car a little bit. And we're going to have run this over to the passenger side. Now, since this wire is not long enough, we're going to use a simple piece of green scrap wire we have, and we're just going to run it over to the other side. We'll use the buck connector to make our connections. Then we'll go ahead and take our green wire and run that over to the passenger side taillight. Once again, we'll go ahead and disconnect the wire harness going to the taillight and then test it.

Our right turn signal turned out to be black with a green stripe. At this point we can go ahead and tuck our green wire underneath the bulb seal at the very edge of the back door. Once we make our connection, we're good to go. And then re-install our interior panels. Now at this point you have an option. You can take the wire harness and go out to a trailer and hide it underneath floor covering, or you can hide it behind the panel, and that's what we're going to do. We'll go ahead and tuck it behind our panel, then reinstall it. All right, with everything put back together, this is what it looks like. Now when we need to use it, we'll go ahead and open up the panel and pull out our wire harness. We'll pull it out. Instead of going over the top of the tailgate, we'll go ahead and run it out the side and below. Then we can go ahead and shut our tailgate. Our door seal will be thick enough where it won't hurt the wire. Now, it's always a good idea to test it before we try it on a trailer, so we'll go ahead and try it out. We'll take a ground clip and put it to the white wire, and then well test the ground wire for the running light circuit. Then your yellow wire for the left turn signal, then our green for the right turn signal. And our brake signal are going to be a constant signal on the green and yellow wires. OK, with everything working, that'll finish it for our install, part number 18252 from Tow Ready on our 2013 Smart ForTwo. .


Customer Reviews

4-Pole Hardwire Kit with Circuit Tester - 18252

Average Customer Rating:  4.6 out of 5 stars   (162 Customer Reviews)

Hardwire 4-pole trailer connector kit for vehicles with combined wiring - where the turn and brake signals are sent along the same wire. Quick-splice connectors and circuit tester included.

- 18252
by:
2014 Smart fortwo

Thanks to the video I did not have a problem installing the trailer wiring on my 2014 Smart Fortwo. Thanks


Comments
Just fine.
Vincent D - 05/31/2020


- 18252
by:

The instructions for this product didn’t match the vehicle I had. When I called to asked questions I waited for 45 min and hung up. I figure out how to make it work but, what have been nice to have instruction that matched my vehicle.



- 18252
by:
1990 Dodge Van

Took me almost a year to actually get to installing this on the van, but wanting to use the trailer was a strong motivator. Its just a basic wiring set with quick connect clips in a bag. The fact that I was installing this on an extended camper version of the van this was designed for complicated the install, but "fortunately" there were enough rust holes that I could drill where I need to drill. Wires were long enough for the job (exactly the length needed) and the clips came pre-filled with silicone grease. Nice. Came with no instructions, but the on-line installation video is *excellent* and guided me thru the entire process. Overall, it was a convenient way to buy and install a wiring harness on my older van. Only two minor complaints: * Did NOT include a weather-proof cap for the plug, which hangs outside by the hitch. I took the one included with the wiring kit for my Suburu (from etrailer) since that plug is stored inside the vehicle. * The 12v circuit tester did NOT work. Fortunately I had my own tester.



- 18252
by:
1995 Chevrolet Camaro

Easy to wire in with the etrailer video. Good quality wires and connector.



- 18252
by:

Awesome product never any issues use along easy install practically don’t need instructions



- 18252
by:

Worked great. Simple instructions. Will buy from etrailer again.



- 18252
by:

First thing I noticed were the online videos that can be saved to a file. nice! also noticed the instructions for assembly of the tow bar was small and difficult to read, (my mechanic was crying throughout the installation) There were no instructions on the wiring kit installation, even a photo of the wire to wire color placement would have helped, but my mechanic went on line and got the photo from an outside source - thus the 4 stars, not five. - other than that it worked out very well, the products are solid, well made, and superbly engineered. everything was inside! thanks !


Comments
We have a link to the installation instructions as well as some install videos on the product description page.
-- Etrailer Expert Mike L - 03/15/2019


- 18252
by:
Ford

Wired up very easily and the wire colors even matched what was in my Ford E350 van. I saved the test light and have used it for a bunch of other projects.



- 18252
by:

Montrell M was very professional and helpful with both the trailer hitch and hardwire kit purchases. If you have questions, he's got simple and correct answers Made the buying experience nice. He's customer oriented.



- 18252
by:
1984 Jeep CJ-7

I got a 4-wire harness to connect my jeep to a utility trailer. The harness worked perfectly. The connectors were good--surprisingly, they were stuffed with noncorroding gel so that the jeep's wires are protected. There were no specific instructions for the hookup, but simply removing the taillight lenses showed which color wires to splice. The supplied tester failed to function, but that wasn't a problem at all--I didn't really wish to poke additional holes into the wires anyway. Took a half hour to complete.



- 18252
by:

I purchased the Draw-Tite Receiver and wiring kit. All parts were easily identified. Good printed instructions. Everything assembled easily and fit perfectly. It took about 1.5 hrs to complete. It will be used to tow a small utility trailer. Highly recommend this equipment and etrailer.com. Thanks.



- 18252
by:
2007 Ford Focus

This was a pain in the rear end. Wires were not labeled and the tester was useless. Had to go to online for some instructions (none included with kit). Took a long time to get it wired to the car.


Comments
On the product page, we have a link to the instructions as well as a couple of install videos.
-- Etrailer Expert Mike L - 12/17/2018


- 18252
by:
1998 Chevrolet Blazer

Only thing that needed to be changed was wire connectors. Type included with the plug are easy to install (no insulation stripping, just clamp) but are not reliable. Throw those away and use standard crimp butt splices. Plenty of wire included, so I cut to more convenient length, spliced, and taped 8 inches on both side of splice. Tester is a nice touch, save in your tool box after installation.



- 18252
by:

I needed a hitch and wiring harness to pull a small trailer for hauling lumber. The harness was easy to install and has worked without any problems over the past year.



- 18252
by:
2006 Ford Focus

The installation documentation, along with the video aid, was very helpful and easy to understand. It helped a lot, and made the installation fast and easy. I like it a lot, and I appreciate the support I got on a minor issue which was easily and quickly taken care of.


Comments
The products I purchased work beautifully! I haven’t experienced a single issue with anything.You guys are terrific!
Russell - 04/04/2018



- 18252
by:

Product as described and very easy to install. In my case it didn't work, because the original wiring on my truck apparently is bad and I couldn't figure out what was faulty, so I ended up getting another harness that plugs into existing tail light harness, which worked great.



- 18252
by:

It was the correct harness for the car and was easily installed. It worked correctly the first time.



- 18252
by:
2005 Ford Focus

I installed this wiring kit along with a hitch. This was pretty easy to install, and the directions were easy to follow. The hardest part was pulling up the the liner in the hatch back area to get to the wires.



- 18252
by:

4-pole Hardwire Kit with circuit tester. I needed the kit to attach rear (break/lights/back-up/tail lights) assembly.



- 18252
by:
2013 Ford Edge

Worked perfect. I used it to extend the pigtail on my tow dolly. etrailer has great shipping & service. Have bought from them many times.



- 18252
by:

Easy to order, shipped quickly, installed easily. I ordered the wiring with it took me about an hour to wire and install the hitch. Direct bolt up no problem.



- 18252
by:
Jeep Wrangler

Works just as advertised! Needed it to wire into a 1990 Wrangler (pre quick connections). Everything came out great!



- 18252
by:

The wiring harness is working great. The installation was pretty easy also.



- 18252
by:

Worked as expected, test light was useful for the installation.



- 18252
by:
2006 Chevrolet Malibu

I watched the video online to install the wires and did it all by myself. Product arrived in good condition.


Comments
No problems, whatsoever! Good product for the price. I especially loved the fact that one could watch the video online on how to install it. Thanks!
TJ - 12/26/2014

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