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Custom Fit Vehicle Wiring > Trailer Hitch Wiring > No Converter > 7 Blade > For Vehicle w Factory Tow Package > Custom Fit > Tow Ready

Ford Replacement OEM Tow Package Wiring Harness, 7-Way

Tow Ready Custom Fit Vehicle Wiring

(121 reviews)

Code:   118242



Custom Fit Product

Shipping Special

Shipping Weight: 1.35 pounds


Tow Ready Custom Fit Vehicle Wiring - 118242

Tow Ready Replacement 7-Way Wiring Harness for 1997-03 Ford F-150 Light Duty & F-250 Light Duty Pickups with OEM 4-Flat Trailer Connectors. Also fits 2004 Ford F-150 Heritage Series.

  • Exact Replacement for Damaged OEM Wiring Harness
  • Installs in Seconds on Vehicles not Factory Pre-Wired
  • Upgrades Vehicles From 4-Flat OEM Wiring to 7-Way Connectors
  • Connects Directly to Standard OEM Connector
  • Fits mounting bracket PK-12711U, sold separately
  • Fuses and Relays Included
  • Can only be used with a factory 4-pole harness
    • This will not work with a factory 7-pole harness

118242 Will Not Work on Ford SuperDuty Trucks - use 118243

Product detail

Picture of OEM Connector. The plug is usually located on the driver's side between the back tires and the end of the truck bed.

Product detail

Picture of the 7-Way Connector

118242 Ford Replacement OEM Tow Package Wiring Harness, 7-Way

Video of Ford Replacement OEM Tow Package Wiring Harness, 7-Way

Videos are provided As a guide only. Refer To manufacturer
installation instructions And specs For complete information.

Video Transcript for Tow Ready Tow Package Wiring Harness Installation - 2002 Ford F-150

Today, our 2002 Ford F150 SuperCrew Cab, we're going to install part number 118242. This is a Ford replacement OEM tow-package wiring harness. Now, what this will do, it will upgrade your preexisting 4-pole harness on tow package up to a 7-pole. Now, our new upgrade harness will actually work with a factory 4-pole wire harness. In this case we don't have our 4-pole anymore, so that's why we're upgrade. Our connection point is right here on the frame rail on the driver's side.

Yes, you definitely want to take the spare tire out of the way so you can see what's going on. This is our connection point and this is our ground. We're going to have to take apart the ground and our connection point. Then we'll go ahead and move this off the frame rail. A small pry bar or trim panel tool will work to get the classic part off here; we'll have easier access to our wire harness. Now, we need to take this apart, push down on this tab, and pull it apart.

Then we can go ahead and start to install our new parts. We've got our new wire harness and basically T into the middle of these two connectors; push them together until they click. Then, we'll go ahead and install our white wire at the ring terminal with the original one and original screw back into the frame. We'll snap this back into its original place, a little push fastener. I'm going to take the indirect cable; it'll go towards our bumper. I like to route it over the frame, back down to the bumper.

Now, at this point it's personal preference how you route your wire harness to the eventual location of your 7-pole connector. Let's go ahead and use a zip tie to help contain our wires, keep them safe and secure. Now, the kit doesn't come with many zip ties, so you may want to go get yourself some. Now, this is our 7-pole connector that'll eventually plug into the back of our wire harness here. This is like Ford factory.

To do that, I will now mount a couple of brackets to hold our 7-pole in place. Now, the bracket we're going to install is part number 18140 from Tow Ready. This is their universal mounting bracket. This bracket is going to attach to the bottom of our hitch and use this clamp to hold it in place. Now you take the screw and a clamp and bend it out of the way to make it easier to run the clamp through and then push it back up. Then use a 5/16ths nut driver to tighten it up. I'm just going to bend that guy up and out of the way for the excess. Now, the bracket we're going to use to hold our 7-pole connector up will be part number PK12711U. This is a mounting bracket for 7-pole connectors from Pollak. Also, we're going to need some hardware to do this. This will be hardware installation kit PK11926. Now to make our connection we're going to use the parts that came with our first bracket to attach these two. Our hardware kit will work with the 7-pole connector itself. A number two Phillips screwdriver will work to tighten down our hardware. Let's go ahead and mount our 7-pole connector, using the hardware kit for 7-pole bracket; flat blade screwdriver for these screws. Then, we can go ahead and plug our wire harness into our 7-pole connector. Now on this connector here, it's a good idea to use some dielectric grease. We'll be using part number 11755 from Lubrimatic. Push these two together until they click and there's also a small grey lock that goes on the end here. Now, typically this piece is already installed on here, but you might want to take it off before you do your installation to make it easier to snap together. So, to take it off, you just push down right here with a really small screwdriver. Push down in the middle and then remove it. When we need to use it, we just line it up and push it into place. All right, next we'll get underneath the hood of the truck and we'll go to the fuse panel here. We'll open it up, take the lid off. There's a couple of relays and fuses that we have to install. At this point, you definitely want to go by the owner's manual and find the locations for your fuses. Now, a lot of times the relays and fuses are already installed onto your truck. So, it's just basically you got to just investigate and see what you need and what you don't need. Now, in our particular truck, we only had to install the backup relay, which is located right here. On our battery charge circuit for our trailer, the relay goes right there. Everything else is already installed on the truck. The fuses that came with the kit, we couldn't use in this one because they're already fuses in the areas of the fuse box of our truck. So, we are done. We have everything in place it's a good idea to test it out with a tester before you try it on a trailer. With that, that'll finish it for our install, part number 118242 full replacement OEM tow-package wiring harness on our 2002 Ford F150 SuperCrew Cab. .

This Product Fits The Following Vehicles

2001 - 2003 Ford F-150 Flareside or SuperCrew with factory 4-flat connector

2000 - 2000 Ford F-150 Flareside with factory 4-flat connector

1997 - 1999 Ford F-150 and F-250 Light Duty Flareside with factory 4-flat connector

2004 - 2004 Ford F-150 Heritage Series Flareside with factory 4-flat connector

2001 - 2003 Ford F-150 non-Flareside or non-SuperCrew with factory 4-flat connector

2000 - 2000 Ford F-150 non-Flareside with factory 4-flat connector

1997 - 1999 Ford F-150 and F-250 Light Duty non-Flareside with factory 4-flat connector

2004 - 2004 Ford F-150 Heritage Series non-Flareside with factory 4-flat connector

2000 - 2003 Ford F-150 Standard Bed models

1997 - 1999 Ford F-150 and F-250 Light Duty Standard Bed models

2004 - 2004 Ford F-150 Heritage Series Standard Bed models

2000 - 2003 Ford F-150 Stepside models

1997 - 1999 Ford F-150 and F-250 Light Duty Stepside models

2004 - 2004 Ford F-150 Heritage Series Stepside models

2001 - 2003 Ford F-150 SuperCrew models

2000 - 2003 Ford F-150 with factory 4-Flat

1997 - 1999 Ford F-150 and F-250 Light Duty with factory 4-Flat

2004 - 2004 Ford F-150 Heritage Series with factory 4-Flat

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Customer Reviews

Ford Replacement OEM Tow Package Wiring Harness, 7-Way - 118242

Average Customer Rating:  4.8 out of 5 stars   (121 Customer Reviews)

- 118242

by: Austin J.06/18/2013

Excellent product. High quality and easy installation. Made better than a factory harness I have on a different vehicle. I also purchased the mounting bracket and hardware kit. The bracket is wonderful and most of the hardware was good too. The self tapping screws both got the heads broke off, but it was my fault, not the screws. 85108


Still working flawlessly, the factory 4 flat isnt working but this one still works like it did when brand new. Highly recommended.

Austin J - 06/18/2014


- 118242

by: Duane G.06/04/2014

nice plug and play installation, video on your web site helped to speed the process as well as clarified that this was the right part that I needed, very good quality although the maxi fuses were not correct for my application but mine already had the fuses in place. 134345


The product is doing fine.

Duane G - 06/09/2015


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by: jyates09/20/2013

Installation was a piece of cake. Everything worked exactly like the video explained and everything was in the box to complete the job. The lady on the phone even reminded me to add a bracket. Like everyone else, I tried locally to get these parts. The local guys (Oreilly, Napa, Autozone & even the custom accessory shop) told me this harness did not exist. I've installed several of these style harnesses on different vehicles. This is my first from etrailer and was by far the most complete kit ever. Everything fit perfectly. Instructions and video were exactly correct. Zero regrets. Worth the money. Wish I would have known about etrailer sooner. Big thanks to the local guys for forcing me to shop online. 100769

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by: Michael D.03/18/2012

We purchased a 5th trailer and needed to have my Ford F-150 wired for trailer brakes and 7 pin harness. Checked your website and was able to find all parts I needed. The installaton videos you have are awesome, they help out so much. Ordered all parts and they arrived quickly. All parts were identical to what was ordered. Had everything installed and wired in, in about 45 minutes. They wiring harness was perfect fit and they trailer brake control harness also exact fit. My overall experience was awesome from placing the order and the e-mails to let me know who took my order and who sent it and tracking it. I will recomond etrailer to everyone I can. Thanks to etrailer we are ready to tow our trailer.****** 34253

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by: Roger01/16/2014

The product works as described. The only problem I encountered was on a 2001 F150 crewcab. The connector that connected to the wire harness coming from the front of the vehicle did not have any catch mechanism so it wouldn't stay together enough for the right side lights(on truck and trailer) to work. I used some channel locks and pushed together as far as I could without breaking anything then used electrical tape to tape it together. Of course after I crawled out form under truck and put spare back in place I realized I should have used a zip tie to hold it. Would probably last longer and hold better. Everything works well. I do not have a brake controller hooked up on vehicle yet. 113986

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by: RMT05/20/2014

Plug and play on my 2003 Ford F-150. Works great. I found the installation video on the website especially helpful. Great job!! 131483


so far so good. no issues.

RMT - 05/20/2015


- 118242

by: Rick W.07/02/2014

Installation of the actual harness was easy. However, if you have the factory 4-pin flat connector without the 7-blade connector, you will need to purchase or make a bracket for the 7-blade connector. On an F-150 there is very little space to add an additional bracket, so I extended the 4-pin bracket and made the extension so that it held both the 4-pin and 7-blade connectors. There is a bracket, a Ford part, specifically marketed for the Harley Davidson edition, FY3Z-14A163-CA, which may or may not fit the standard F-150. Also, another part, FL3Z-14A163-BA may or may not fit. 138797

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by: Ray B.06/06/2013

7-way harness has a weak locking tab on back of connector which locks it into the back of the socket. It promptly broke while handling connector and socket prior to assembly on vehicle. The 30-amp fuses included were of the wrong type for a 1999 F150. The fuses are a blade type maxi-fuse, and the 99 F150 uses a square type of fuse. Luckily, both fuses were already installed in the vehicle. The relays fit perfectly. 83591

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by: Billy L11/25/2013

This was great, I bought it for my 2000 ford f150. It was easy to install. Only trouble I had was securing the ground to the frame as my ground bolt was corroded with rust (live in Minnesota) such that I couldn't loosen it and had to drill a new hole for the ground. Another note I bought the mounting hardware as well, and it was the wrong mount so be careful and make sure you get the right one if you order the kit 108425

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by: Mark11/08/2013

Your product fits perfectly I customize the 7 way plug into my bumper I didn't like the way the bracket let hang down so far ill send another picture with me pulling my drag truck with the van thanks again. 106753

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by: jr fults01/20/2014

if this was any easier to install i think i could have did it blind but everthing went in place very easy no problem if you take your time it might take 1 hour that saying you have the tools on hand that you will need their video are very helpful if you find you are having a problem but i think evening a cave man could install this great products.happy happy happy 114296

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by: Bill McC05/14/2013

Great purchase all around. Paid a pro (?) to install electric brakes but he didn't do it right. I ordered the harness myself and installed myself then took it back to the pro (?) to have him test it and now is he embarrassed. With the video online I should have done it myself from the beginning. Thanks ill be back when I need something else 80127

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by: Mark05/19/2011

The wiring harness was easy to install. Several fuses and relays are included, but the instructions are generic to cover a wide range of trucks. Depending on the year and options on your specific truck you may use all or only a few of the fuses and relays. This was confusing and I hope I got the correct pieces in the correct locations. 14837

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by: Al G.07/08/2012

I ordered the prodigy 2 controller, the wiring harness, hardware kit and mounting bracket. quick shipping and instalation was super easy with the how to video. I installed the whole kit in under an hour and towed 1650mi right off. Just as described and the kit worked flawless! literally plug and play. I can't say enough good about it. 47149

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by: Nick L05/29/2013

Very easy to install thanks to Ford. Very disappointing that it did not come with the $4.00 mounting bracket for the back of my truck. Had I been told this during the order process I certainly would have bought it. Its bundled with enough relays/fuses that it should've been bundled with the bracket. Thats the only complaint. 82299

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by: John Malkin - Denver04/04/2014

By far the easiest and best plug and play product we ever purchased. Have a 2003 Ford 150 and a 2011. Installed these along with Tekonsha P3 Conteollers and it literally took 1 hour to install and be on the road. Great product - great price. WATCH THE VIDEOS -- dead on accurate and helpful John Malkin - Denver 123758

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by: Andrew M04/22/2015

Easiest trailer plug I have ever installed...lowered spare tire (but did not remove) and then unplugged the stock wire plugged this in line and mounted it all to the brackets i purchased here at same time, had it all wrapped up and completed in under half hour, with my 4 year old daughters help of course! 187455

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by: John Malkin - Denver04/03/2014

To be honest -- the hardest part was finding the key for my spare !!!! Found it though and within 20 minutes I was in parking lot checking the brakes. Takonsha P3 coupled with eTrailers wiring harness and accessory make this a great DIY project. Don't forget to purchase a mounting plate !! 123583

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by: Dan S04/05/2012

Worked great. Ordered it on Tuesday, got it on Friday. It was the perfect length for my 2000 F-150 and all the connections, fuses, and relays fit perfect. I like that the instructions and video were posted on your website so I knew exactly how to install it before I even ordered it. 36240

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by: Greg p.05/25/2012

great products, easy instructions, was told by several camper stores that this product was not available and i would have to "hard-wire my truck to accept a 7-way plug, but etrailer had exactly what i needed and at a great price! i will continue to shop with etrailer from now on! 41643

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by: kevin williams05/15/2013

63 years of age always cut spliced plugs in the day only choice kit came with relays fuses plug band play buy the time you chase parts cut and splice recut and splice done wrong just plug in install supplied relays on road before coffe cold thanks aaaplus to do business with 80375

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by: Frank M09/20/2011

Product was as described. Easy to hook up. The only thing that is not clear is that it does not come with the L bracket to mount it to the truck. I went to our local store and their L bracket will not work with this plug, so don't forget to order the bracket as well. 24280

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by: Joe W07/19/2009

quick shipping, easy install this sysytem couldnt be simpler, unplug a connector, pug the adapter into the two ends and run the bolt through the ring termional and tighten back in place. a basic mounting bracket for the recepicle would have been handy however. 2142

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by: R Rrebbs03/16/2011

The install could not have been easier, unless you had some one else do it. Fast shipping and the E trailer customer service is great. The only problem I had was I forgot to order the mounting bracket mount bolt/screws. The video was made install easy. 9442

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by: RP09/02/2014

Fit like a charm...Watch the simplifies the installation...and it gives you a heads up on the little red factory connector ring that doesn't necessarily want to stay where it belongs...mine moved but it was no big deal knowing ahead of time. 149561

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by: JeepJohn02/27/2011

Fits great and no fuss plugs. Added a little Dielectric grease for good measure and have had no issues. well worth the extra money over a "Universal" mount. all the wires had been well terminated and low resistance. Clean install clean look. 8000

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by: Kyle H.05/25/2013

The wiring harness was very easy to install. However, the kit didn't come with a bracket to attach to the bumper. The instructions were just enough information to be helpful, but not too excessive. The package also arrived in a timely manner. 81925

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by: Art11/11/2014

The installation of this product was very easy. It was helpful to review the video that was on line for the product. Once the installation was complete the product worked flawlessly. It only took me about 30 min to install and it looks clean. 160405

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by: Hank H01/02/2011

Great Service I have ordered several times from E-Trailer and have always recived what I ordered and more importain what fits. Last order they up graded the shipping time on there own, not needed but very nice just the same. HH 4888

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by: Phil S09/16/2014

This product fit perfectly and solved all my trailer wiring issues and some from the previous owner judging by the cuts and splices. The wiring now looks like it should. I would highly recommend E-Trailer products. 151223

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by: Howard05/17/2012

Really easy to use both of these products. Only problem is making sure you have the key to lower the spare tire to get to the connection for the 7-way. Shouldn't take over one hour to do both installs. Works great. 40852

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by: Al C.10/29/2012

I was extremely pleased to get my wiring harness ahead of the predicted schedule. The wiring harness directions were exact and percise. I was able to complete the job of installing the harness in about 10 Minutes. 58310

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by: Herb S.02/04/2011

Item listing was very clear and the product was delivered very quickly! The video tutorials on your website are very helpful and helped me in my decision to purchase from Another Satisfied customer! 6639

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by: Christopher W.05/05/2012

Great products with no splicing of wires. I did it myself, just plug it in and you are ready to go. I am so glad I ordered the mounting bracket. I just wish it had the screws included with the mounting bracket. 39504

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by: Sam Z.08/15/2014

Remove the spare. Disconnect the old wiring. Install the new wiring. Secure with some ties and presto! Done. The only way it could have been any easier is if I had someone else do it! Thanks! 146878

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by: Shawn Guffey04/08/2012

The product was exactly as advertised. Very easy to place my order online. Order was promptly processed and item was shipped very promptly also. Very pleased with my first transaction with 36558

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by: Brihan07/06/2011

I was impressed with entire process of ordering and receiving this wiring harness. I installed it myself after watching the video on entrailer on how to install it. It led me through every step. Thanks! 18746

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by: J.B.04/21/2015

Awesome, installed relays, dropped the spare tire, plugged in, zip tied,connected ground, tested and was perfect, new boat in tow! would have been nice if there was hardware with the mounting tab. 187221

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by: Michael Price03/28/2011

Part was recieved as and when expected and was exactly what I was expecting. Appears to be working as expected and now it is a matter of how it continues to function for the next couple of years. 10520

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by: Gerry H.05/12/2014

I am sorry this is so late in coming, however I just completed the installation. The items as recommended by the person taking the order worked for a complete and easy installation. 130082

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by: John T08/24/2015

Worked well with the bracket and parts that had to be ordered along with the harness. Whole process took less than 20 minutes and I am estatic with the results. Plug and play. 221435

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by: Gary H.09/03/2014

This product is brilliant. the website made it easy to figure out how to do it and the customer service was first rate. I will be doing more business with these people. 149983

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by: Randy03/26/2014

Plug and play; just like it says. No butt connectors under the bed of the truck. Everything worked out well. Must have product if you are wiring up for trailer brakes. 122351

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by: cliff howard08/29/2013

the product was just as they said it fit easy into my wiring and was a simple job a very fast delivery and I THANK etrailer for the good co. that they are 97504

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by: Steve D05/25/2012

Wiring harness fit my F150 perfectly. Works great! Instructions were excellent; could not have been simpler....if only everything were this easy. 41727

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by: Charles M.01/30/2012

The product was no problum to install and works great. I am 61 years old with a disablity and I didn't have ant trouble installing the trailer kit! 30606

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by: Jeremy01/15/2015

Wire harness worked great. Kit came with everything. Shipping was fast. I liked that they had video that showed the complete install. Thanks. 169058

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by: michael h04/19/2015

got the part number from the customer service people on the phone, watched the video, easy to install once I saw it done, a great experience. 186335

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by: Tim C01/30/2015

Installed the 118427 wiring harness on my 2002 F150XLT followed the video on and it was just plug and play no problems. 171831

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by: warren l07/23/2012

easy to figure out wat you need, easy to order, excellent detailed instructions, easy to install. anyone can install. quality product 49080

Show More Reviews

Ask the Experts about this Tow Ready Custom Fit Vehicle Wiring
Do you have a question about this Custom Fit Vehicle Wiring?

  • What Do The Fuses And Relays Control On Tow Ready Ford OEM Tow Package Wiring Harness # 118242
  • The fuses and relays that come with the Tow Ready Ford Replacement OEM Tow Package Wiring Harness, 7-Way, part # 118242, does not control the cruise control, power mirrors, or the fog lamps. The two 30 amp maxi-fuses are for the Trailer Tow Electric Brake and Trailer Tow Battery Charge fuse locations. The two relays are for the Trailer Tow Backup Lamp Relay and the Trailer Tow Battery Charge Relay. The fuses and relays are located in the vehicles power distribution box (and trailer...
    view full answer...

  • Troubleshooting a Replacement Ford Tow Package Wiring Harness for No Left Turn Signal
  • I would try unplugging the harnesses and relays and then plugging them back in as it sounds like the left turn signal circuit is not making contact somewhere and it could be as simple as reconnecting the harness to fix the problem. Next. I would check the vehicle side plug that the Tow Ready Custom Fit Vehicle Wiring # # 118242, plugs into. If this circuit is functioning properly then check the wires coming out of the new connector to determine if the power is getting to the 7-Way harness....
    view full answer...

  • 2012 Ford F-150 with Factory Came with Fuse and Relay Labeled AL3T-15A416-AA
  • Normally, a factory tow package will be fully functional from the factory when you buy the truck. But in some cases, a tow package can be added very easily (by plugging in a 7-Way and adding some relays/fuses) that they can provide the parts at the dealer. It sounds like your truck may fall under the second category. To be sure, all you have to do is use the owners manual to find the proper locations of the fuses/relays related to the tow package, and insert the ones you found (if needed,...
    view full answer...

  • How to Install 7 Way Trailer Wiring on a 1997 Ford F-150
  • It sounds like your 1997 F-150 does not have the tow package wiring so the wiring harness # 118242 will not work on your truck. To install a 7-Way trailer connector at the back of your truck, you will need to start with a working 4-Way connector, # 18252, or # 118344 if you have a stepside. If you need to splice to connect the 4-Way, use a circuit tester to splice to the appropriate wires you found at the connector on the frame rail. If you have a 4-Way connector at the rear of your...
    view full answer...

  • Troubleshooting Running Lights on Trailer Not Working When Connected to a 2001 Ford F-150
  • If your 2001 Ford F-150 is equipped with a factory 4-Way trailer connector, the Tow Ready Custom Fit Vehicle Wiring, # 118242, should work. There are a couple of things you can check. First, there are a few fuses that need to be installed if you have not done so. I have included a link to the instructions below. The first few steps address the fuses. Also, you can check to see if any fuses are blown. A tow package running light fuse might be blown and need to be replaced. Also, check...
    view full answer...

  • Troubleshooting Trailer Turn Signals With 1997 Ford F150 With Factory Wiring Harness
  • You can check the mini fuse panel located behind the power distribution box. There should be a 20 amp fuse in location 2 for the trailer tow stop/turn lamps. Also, in the power distribution box, there is a 40 amp fuse in location 16 for trailer tow battery charge and stop/turn lamps. If this fails to correct the problem you can troubleshoot. The best way is to disconnect the truck and trailer and test each one individually. If you happen to have access to another truck or trailer that...
    view full answer...

  • Installing a Brake Controller on a 1998 Ford F-150 with Factory 4-Way Trailer Connector
  • If your towing package includes a 4-Flat connector, you will first need to add a 7-Way. For your 1998 Ford F-150, you will need the Ford Replacement OEM Tow Package Wiring Harness, # 118242. Follow the wires from the 4-Flat towards the front of the vehicle until you find a connection point, usually on the driver side between the rear tires and the end of the truck bed. There will be more wires going into the connector then coming out. You will disconnect the factory connection and plug...
    view full answer...

  • 7-Way Trailer Connector for 2011 Ford F-150
  • The wiring harness you referenced, part # 118242 would not be compatible with your 2011 F150. It is designed for the 1997-2003 model years only. The parts necessary to provide a 7-way for your F150 would depend on how it was equipped when it left the factory. If your F-150 has the factory round plug located along the drivers side frame rail behind the back bumper, you would use part # 20119. The factory plug will have a dust cover that will need to be removed, and the 20119 would...
    view full answer...

  • Ford Replacement OEM Tow Package Wiring Harness Compatability with 2006 Ford F-150
  • The Ford Replacement OEM Tow Package Wiring Harness, 7-Way, item # 118242, fits the following vehicles. 2000 - 2003 Ford F-150 Stepside Models 1997 - 1999 Ford F-150 and F-250 Light Duty Stepside Models 2004 - 2004 Ford F-150 Heritage Series Stepside Models 2000 - 2003 Ford F-150 Styleside Models 1997 - 1999 Ford F-150 and F-250 Light Duty Styleside Models 2004 - 2004 Ford F-150 Heritage Series Styleside Models 2000 - 2003 Ford F-150 with factory 4-Flat 1997 - 1999 Ford F-150...
    view full answer...

  • Replacement 7-Way Wiring Harness for 2003 Ford F-250 and 350 Super Duty
  • We have part # 118243 that is meant for SuperDuty trucks, this should be the part you are looking for. This will plug directly to your factory setup and is a very simple install. I have included a link to the instructions for this part. We have another part that may also be what you are looking for, but requires some hard-wiring, part # ETBC7.
    view full answer...

  • Finding Fuse and Relay Locations for Tow Package Wiring on a 2005 Ford F-150
  • If you look at the owners manual for the truck and/or the legend on the power distribution box lid it will tell you the locations of the fuses/relays that are related to the tow package wiring. I found an online version of the owners manual and the fuse/relay section starts on page 224. For fuses it looks like the trailer tow parking lamp fuse is in location 10 and the relay is location R201.
    view full answer...

  • Troubleshooting Running Light Circuit on Trailer Pulled by 2001 Ford Expedition
  • If you have tested and are getting voltage at the trailer connector when the brake lights and turn signals are activated, you most likely have a blown fuse. Check the fuse box under the hood. The box should have a legend on the underside of the lid that identifies the circuits, or you can check your owners manual for the proper fuse location. Keep in mind that on some Ford trucks and SUVs, the fuses for the tow package are located in a separate fuse block mounted on the firewall in the...
    view full answer...

  • Troubleshooting Trailer Running Lights Not Working on a Trailer Towed by a 1998 Ford F-150
  • It is possible that there is a fuse or relay that needs to be inserted on the truck to allow the running lights to function. You will need to consult the owners manual to find the location of the tow package fuses/relays in the power distribution box to see if any are missing or need to be replaced. The Ford Replacement OEM Tow Package Wiring Harness, # 118242, comes with fuses and relays for reverse lights, battery charge (12 volt power), and electric brakes but not the running lights....
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  • Troubleshooting Replacement OEM Tow Package Wiring Harness # 118242 on a 2000 Ford F-150
  • The best way to determine where the issue is occurring would be to test the 7 pole plug with a circuit tester, without the trailer connected. Have a friend sitting in the cab press the brake pedal and engage each of the turn signals while you test the corresponding prongs on the plug. If you are correctly receiving power at the 7 pole plug, you will need to turn your attention to the trailer. If not, I would check the connection point between the # 118242 harness and your vehicle,...
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  • Installation of Brake Controller On My 2011 Ford F-150 Without Tow Package
  • It is possible that the wires you are looking for have been terminated farther up the frame rail or may not have been ran back. Typically the wires would run to where the factory 4-way is plugged into, usually near the spare tire. If you cannot locate the wires, you will just need to hardwire the brake controller and 7-way, which is not as bad as it sounds (we have a kit for this). You will need the Brake Controller 4 and 7-way Installation Kit, part # ETBC7. To install, you will begin...
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  • Recommend 7-Way Wiring Harness Needed For 1999 Forf F-150 With No Trailer Connector At All
  • I believe the connector you found is the connector you will use to plug in the wiring for your 7-way connector. There should be a wiring connector along the drivers side frame rail at rear of truck between the rear wheel and the rear of truck (see FAQ and video). To install a 7-way on your 1999 Ford F-150, you will need Ford Replacement OEM Tow Package Wiring Harness, part # 118242, which includes all necessary adapters and fuses. Before installing part # 118242, you will want to disconnect...
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  • Locating Brake Controller Port on 2000 Ford F-150 To Install Hopkins Brake Controller # HM47294
  • The factory brake controller plug should be located under the dash to the right of the steering column. It should be located towards the center of the dash and may be tucked up and out of the way behind some wiring. I have linked an FAQ Article that shows the location of the plug. You will need the Ford Adapter, part # HM47715, to plug into the brake controller harness and the Ford plug under the dash. If you have a factory 7-Way on your 2000 Ford F-150, installation is complete after...
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  • Troubleshooting the Trailer Wiring Reverse Light Wire on a 2005 Ford Expedition
  • If the additional blue wire is a factory installed wire and not a wire ran by a previous owner, then the issue is typically caused by a blown fuse or a bad relay. On your 2005 Ford Expedition, there should be a 20 amp fuse for the trailer wiring backup lamps is fuse position 10. If that fuse is blown or missing, that could be the issue. I also recommend checking the relays in position R201 and R301. If the fuses and relays are present and in good condition, it may be possible that the...
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  • Troubleshooting Electric Trailer Brakes and Running Lights not Working on Trailer, 2006 Ford F-150
  • I have a couple of ideas that may help solve the problem you are having on the 2006 Ford F-150. First, you mentioned that the truck has the tow package. It is possible that you will need to add or replace fuses and/or relays to allow the tow package to be fully functional. Your vehicle owners manual should have the locations of these fuses/relays and you can check to make sure everything is present and in working order. Next, you can check some of the wiring to determine if it is the...
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  • Recommended Trailer Harness for 2003 Ford F-150
  • If your 2003 Ford F-150 came from the factory with the 4-Way flat connector, then your truck already has a towing package wired in. In this case I would recommend 7-Way connect part # 118242. A 7-Way will allow you to tow trailers with 7-Way wiring systems and brakes. You can still use it with 4-Way trailers by using an adapter like part # 47345. Built into this adapter is a circuit tester to make sure truck wiring is hooked up properly. If you strictly want to use a 4-Way, then the...
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  • Tow Package Fuse and Relay Locations for 12 Volt Power on a 2006 Ford F-150
  • According to an owners manual I found from Ford for the 2006 F-150 the 12 power fuse for the 7-Way is located in spot 106 and requires a 30 amp cartridge fuse. There is also a Full ISO relay needed in spot R05. Your owners manual has a section on fuses and relays for more information. The fuse you should be able to get at an auto parts store but the relay is most likely a dealer item. I would first test the 7-Way trailer connector to see if it has 12 volt power on the pin in the 1:00...
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  • Replacement 7-Way Wiring Harness for a 2010 Expedition EL with Existing 4 Pin Plug
  • The 2010 Ford Expedition should have a round connector at the rear of the vehicle where your 4 pin plug is plugged in. If there is a round connector there you can use the Replacement Multi-Tow 7-Way and 4 Pole Trailer Connector, item # 20119, to replace the 4-Way OEM connector on your Expedition. If your Expedition does not have the mating round connector under the rear of the vehicle you will need to use a 4-Way to 7-Way adapter like item # 37185, to provide a 7-Way connector at the...
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  • How To Install A 7-Way Connector In The Bed Of A 2002 Ford F-250 For A Fifth Wheel
  • If you have a factory tow package with a factory 7-way trailer connector already on your 2002 Ford F-250 Super Duty, then I have a couple of recommendations to put a 7-way in the bed of your truck. The Draw-Tite Wiring Harness, # 51-97-410, will plug inline between the OEM wiring harness and the factory installed 7-way connector under your truck bed. You will retain the use of the factory 7-way on the bumper and then have 9 feet of wiring harness to have a 7-way in your truck bed. The...
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  • Wiring And Adjusting The Tekonsha Voyager Brake Controller, # 39510, On A 1999 Ford F250/F350
  • I am sending a link to the instructions for the Tekonsha Voyager Brake Controller, # 39510. It will show you how to adjust the brake controller. They do not have a wiring schematic, but I can explain how to wire it to a 1999 Ford F250/F350 truck. If your 1999 Ford F250/F350 has a factory installed 7-Way trailer connector, all you would need is the brake controller and the factory brake control adapter that connects to the controller and plugs into the OEM plug. The OEM plug is located...
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  • Adding a 7-Way Trailer Connector to a 2002 Ford F-150 with Factory 4-Way Flat Trailer Connector
  • You should be able to trace the 4-Way harness towards the front of the truck and find where it connects to another connector. The connector should be square and look like the plugs for # 118242. Adding this harness and the relays/fuses it comes with will provide you with a 7-Way trailer connector. You could then just use an adapter, # PK12716, when you need a 4-Way. You could use # HM40975-11998 and hardwire it in to the factory wiring harness on the forward side of the truck. You would...
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  • Signal Lights Not Working on a 2001 Ford F-250
  • I do know that the 7-Way replacement connector # 118242 that we offer for the 2001 Ford F-250 light duty models will include the necessary relays and fuses for installation, so the flasher issue could very well be that you are missing a required fuse or relay. This would be something you could check with Ford. Please note that the 118242 wiring harness is only a fit for the F-250 light duty models. If your vehicle is a Super Duty model and is equipped with a factory tow package, you...
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  • Replacement 7-Way Trailer Connector and 7 and 4-Way Plug for a 2003 Ford F-150 Super Crew
  • If your 2003 Ford F-150 has the 7-Way and 4-Way and they are separate (not mounted in the same plug like # HM48470 for example), the 4-Way will still be functional as the Ford Replacement OEM Tow Package Wiring Harness, # 118242, just replaces the 7-Way connector and wiring, and includes the fuses and relays if needed. I have included a link to the installation details and a video that, in part, shows the harness being installed for reference. If you need to replace the 7-Way wiring...
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  • Installing Tekonsha Voyager Brake Controller Part 39510 on 1998 Ford F150
  • Installing a brake controller on your 1998 F150 will be pretty straightforward. You will need the controller and the appropriate wiring adapter, part # 3035-P. One end of the wiring adapter plugs into the brake controller, and the other end plugs into the brake controller connector under the dash. If your F150 is not already equipped with the 7-way trailer connector, or has the 4-pole connector, you will need the Tow Ready wiring harness, part # 118242. This harness will plug into the...
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  • Parts Needed to Add a 7-Way Trailer Connector to a 2007 Ford F-150 with Factory 4-Way
  • To install a 7-Way trailer connector on a 2007 Ford F-150 with a factory 4-Way, you will need to use # 37185. This is part plug and play and part hardwire, but the hardwire locations are easy to access. You will need to ground the white wire to the vehicle frame. The purple wire is for reverse lights if needed. You would need to tap into a reverse light wire on the vehicle. The blue wire is for the trailer brakes and the black wire is for 12 volt power. To connect these wires, follow...
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Do you have a question about this Custom Fit Vehicle Wiring?

Info for this part was:

Test Fit:
Joe V

Photos by:
Theodore B

Expert Research:
Michael L

Expert Research:
Sarah L

Expert Research:
Robert G

Expert Research:
Patrick B

Expert Research:
Michael H

Expert Research:
Jeff D

Expert Research:
Reno H

Expert Research:
Jameson C

Expert Research:
John H

Expert Research:
Adam R

Updated by:
Laura H

Expert Research:
Jeffrey L

Video by:
Alan C

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