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  1. Custom Fit Vehicle Wiring
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  3. 7 Round - Blade
  4. Trailer Hitch Wiring
  5. Custom Fit
  6. No Converter
Ford Replacement OEM Tow Package Wiring Harness, 7-Way
Tekonsha

Ford Replacement OEM Tow Package Wiring Harness, 7-Way

Part Number: 118242
In Stock
$83.92
Custom Fit Vehicle Wiring

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1-800-940-8924 to order Tekonsha custom fit vehicle wiring part number 118242 or order online at etrailer.com. Free expert support on all Tekonsha products. Great prices and Fastest Shipping for Ford Replacement OEM Tow Package Wiring Harness, 7-Way. Custom Fit Vehicle Wiring reviews from real customers.
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  • Reviews (284)
  • Q & A (0)
  • Videos (2)
  • Photos

Tekonsha Custom Fit Vehicle Wiring - 118242

  • 7 Round - Blade
  • Trailer Hitch Wiring
  • Custom Fit
  • No Converter
  • Tekonsha


  • 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


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

Installation Details 118242 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


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 Let’s Check Out the Ford Replacement OEM Tow Package Wiring Harness, 7-Way

Today we're going to be taking a look at the Ford Replacement OEM Tow Package Wiring Harness with a seven way connector. This product fits numerous vehicles, so to make sure it works with your particular year and model, you can use the vehicle fit guide located on our website at etrailer.com. This is an exact replacement for your damaged OEM wiring harness. It's going to install quickly and easily, and it upgrades vehicles from a four flat OEM wiring to a seven way connector. The existing four way flat harness on your vehicle will still be functional. The unit's designed to connect directly to the standard OEM connector, you can see right here everything that it comes with. Your going to get the actual harness, your going to get your new seven way connector, plugs into this port right here on the harness.

Your going to get a hardware kit that's going to include two zip ties, detailed instructions, and your going to get the necessary fuses and relays. The connector right here, to make sure this is easily accessible at the back of your vehicle, we recommend using a mounting bracket. This is going to fit mounting bracket PK-12711U. That item is sold separate if your wanting to add a bracket to the vehicle for your seven way connector. You can find it here at etrailer.com. Now when it comes to installing the unit, you'll need to disconnect the vehicles negative battery cable, install the included fuses and relays according to the detailed instructions, locate the vehicles wiring plug that's going to be located in the rear underneath the vehicle, inside the driver's side frame rail.

Separate the plugs on the vehicle, and then install the trailer tow harness between mating plugs. These connectors are going to match up perfectly, they're going to snap lock together for a nice tight secure fit. Once you have those connected, make your ground connection, that's going to be you white wire with the inaudible 00:01:37 attached to it. That's going to get connected by using the existing ground stud on your frame rail, and then plug the seven way socket into the harness on this side. Push it in until it snaps together. It's got the locking tabs on it as well for a secure fit.

Once you have that done, you can reconnect the battery cables, test your installation, you can secure all your loose wires with the included zip ties or cable ties. Then you can mount the tow harness in an accessible location using the mounting bracket like I mentioned earlier. Please keep in mind, the unit can only be used with a factory four pole harness. This will not work with the factory seven pole harness. The instructions are detailed, they include some images in there to help with the installation process. A couple more things that I want to mention before we wrap up the video, here on the seven way connector, you can see it has a nice spring loaded lid, has a little tab right there so you can easily get that open, and get everything connected as you need to.

Really nice design. I just want you to know that your wiring is going to be protected. It's got the nice wire loom that goes around there to protect the wires. Again, when installing this, I do recommend going ahead and using the zip ties, to secure the wires up and out of the way, and keeping them safe. Especially during travel, and when a lot of grim builds up under the vehicle, having them tucked up and out of the way. Maybe even along the existing wiring harness is really going to help extend the life of this wiring harness, and just the wires. That wiring loom is going to help as well. That's going to do it for today's look at the Ford Replacement OEM Tow Package Wiring Harness with a seven way connector.

Customer Satisfaction Score:


Customer Reviews

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

Average Customer Rating:  4.8 out of 5 stars   (284 Customer Reviews)


by:
2002 Ford F-150

Outstanding service !!!!!!!!!!



by:

Easy installation



by:

Very easy instalation, works great.



by:

Nice easy way of installing



by:
Ford F-150

very nice and easy



by:
1997 Ford F-150 and F-250 Light Duty

20 min. job perfect fit, as advertised.



by:
2002 Ford F-150

Very nice product that fit perfectly.



by:

Just what i needed



by:

Good product & easy to install.



by:

Easy to install and worked perfectly!



by:

ok



by:
1997 Ford F-150 and F-250 Light Duty

Very easy to install. Good quality.



by:

Prompt delivery and easy install.



by:
2011 Jeep Grand Cherokee

Super easy to install.



by:
2004 Ford F-150 Heritage Series

Easy to install. No problems.



by:
2001 Ford F-150

Worked great. Watch the video.



by:

What is thisExcellent



by:

good product, easy to install, great customer care.



by:

Excellent product! It was easy to install with no hassle, works great!



by:

Shipping was fast and the parts worked perfectly.



by:

great product installed in lessed that 30 min. works great



by:

Great productEasy to install and worked just as advertised.



by:
2003 Ford F-150

Product is a breeze to install.....could'nt have been easier.



by:

ExcellentCouldn't have been easier! Installed in minutes and looks/works great



by:

Product exactly as described. Delivery received within 2 days. Incredible. Very pleased.


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Show More Reviews

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

  • Recommended 7-Way and 4-Way Trailer Wiring Connector Compatible with Factory Harness
    For your 2002 Ford F-250, the wiring harness you are seeking with both 7-way and 4-way connectors is the Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 7-Way and 4-Pole Flat Connectors # C55774 or the Reese # 74682. Either of these will connect to your factory wiring harness to give you both of the trailer connectors you seek.
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  • Recommended Wiring for 1998 Ford F-150 to Add 7-Way to Factory 4-Way Trailer Connection
    For your 1998 Ford F-150 Extended Cab with factory 4-way flat, you need the Tekonsha Ford Replacement OEM Tow Package Wiring Harness, 7-Way # 118242. This will give you the two additional relays needed as well as the wiring harness. Then you will need a brake controller. I recommend the Tekonsha Prodigy P3 # 90195 as well as the wiring adapter # 3035-P. This will give you an easy to use proportional brake controller with easy to use presets as well as a nice LCD screen for diagnostics....
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  • Circuit Configuration in RV-Type 7-Way Trailer Wiring
    Your photo shows the 7-way trailer wiring setup that we call the RV format. The photo I linked shows an actual trailer plug # A10-7W6 like yours and the circuit arrangement is the same as your photo diagram. For reference, the included article covers all wiring formats in detail. The item you referenced, replacement OEM wiring harness # 118242, is configured in the same way.
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  • Troubleshooting Trailer Running Lamp Circuit on 2015 Ford Expedition
    The trailer running lamp circuit is protected by a 25A fuse in location 28 and a relay in position 24. Check and replace as necessary, but before plugging the trailer back in, you'll need to find and repair the short in the running lamp circuit on the trailer, or you'll continue to blow fuses. Begin at the trailer connector, and trace that circuit (typically a brown wire) back from the connector to the lamps. Look for pinched wires, loose connections or cracked/worn wire insulation. Pay...
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  • 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 owner's manual to find the proper locations of the fuses/relays related to the tow package, and insert the ones you found (if needed,...
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  • Radiator Cooling Fan Fuse/Relay Location on a 2011 Ford F-150
    There are typically two cooling fans attached to a radiator, the high speed fan and the low speed fan. I looked in the owner's manual for your 2011 Ford F-150 and its does not specify which fuse is for which fan so you will just need to check all of the ones that relate to the electric fan circuit which I have listed for you below. The fuse will be more or less apparent if blown but the relay will be more difficult to check. If you switch the suspected faulty relay out for one that you...
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  • 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...
  • How to Unplug a 7-Way Harness from the 7-Way on a Ford Super Duty
    Do you see the white plastic piece in the shape of a U in the picture that you sent me? You will need to pull that piece out away from the harness to release it from the rest of the 7-way. Check out the video I attached and skip to the 3:25 mark to see how it unlocks and locks.
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  • What is Needed to Wire Mark 12 Brake Controller on 2002 Ford F-150?
    Does your 2002 Ford F-150 have a factory 4-flat, factory 7-way or no trailer connector at all?
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  • Troubleshooting Trailer Wiring on 2013 Ford Expedition
    I did not find purchase history for you to confirm which wiring kit you have installed in your 2013 Ford Expedition but if you have recently installed one of the kits intended for your vehicle (shown on the linked page) and you do not have output on the contacts for the trailer there are a few things to check. If your wiring has been on the vehicle and has suddenly stopped working then the likely causes are blown fuses, bad relays or corrosion in the connectors. First, make sure that your...
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  • Compatibility of 4-Pole and 7-Way Trailer Connectors on 2003 Ford F-150
    If your existing 4-pole harness is a factory part that plugs in to an OEM connector like those on Tow Ready harness kit # 118242, you can have both harnesses active at the same time by daisy-chaining then together. If you have an aftermarket 4-pole harness that connects to the truck's taillight wiring then again both will still remain active since they connect to the truck independently of one another.
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  • Replacement 7-Way Recommendation for 1998 Ford F-150
    I can't see your shopping cart, but for your 1998 Ford F-150 the correct replacement 7-way trailer connector is the part # 118242.
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  • Replacement 7-Way and Harness Recommendation for a 2000 Ford F-150
    Thanks for sending in the picture of the connector you have on your 2000 Ford F-150. All you would need to replace then is the part # 118242 for a new 7-way that would plug into the connector you have on your truck. This will include a few relays and fuses that you don't need, but this is the only way to get the parts you need from us.
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  • Replacement 7-Way and Wiring Harness Recommendation for a 2000 Ford F-150
    We had a customer with a similar problem and they were able to use the Curt Wiring harness part # C55242 and it worked just fine.
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  • No Left-Side Trailer Turn Signals on 7-Way Socket
    It is possible that there are separate left- and right-side tow package fuses on your vehicle. You will need to check your power distribution box to see if there are either missing or blown fuses. Please note that the part you referenced, Tow Ready Custom Fit Vehicle Wiring # 118242, will not work with a factory 7-pole harness; it can only be used with a factory 4-pole harness. It will not work on Super Duty trucks; for a SD truck you need to use # 118243.
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  • Does B and W Hitch part # BWHDRH24400 Fit 2002 Ford F-250 SuperCrew
    The B and W Hitch part # BWHDRH24400 that you referenced is a confirmed fit for your 2002 Ford F-150 SuperCrew and would work great. If you do not have trailer wiring currently you'd want the # 118242 which is a confirmed fit. This will give you a 7-way.
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  • 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 and F-250...
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  • Options for Installing 7-Way Trailer Connector on 2004 Ford F150 Equipped with 4-Pole
    Although the # 30717 will work, I have a better suggestion for you. If your F150 is the New Body style, use part # 118247. If you have the Old Body style, use # 118242. Either connector will plug inline with your existing trailer connector, allowing you to retain the function of your existing 4-pole. Either kit includes the necessary fuses and relays to activate the remainder of the tow package circuits. Granted, this is a more expensive option, but it will be a very quick and easy plug-and-play...
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  • Adding a 7-Way Trailer Connector on a 2012 Ford Escape to Use Prodigy RF Brake Controller
    To install a 7-Way trailer connector on your 2012 Ford Escape you will first need to install a 4-Way using # 118551 (since there isn't a plug and play 7-Way options for your 2012 Ford Escape). Then you can install # 37185. Since you will be using the Prodigy RF, # TK94FR, only the lighting functions and the 12 volt circuit will need to work on the 7-Way. To get the lighting functions to work you just plug the previously installed 4-Way to 37185. Ground the white wire from 37185 to the...
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  • Brake and Turn Signal Lights Cut Off with Headlights On
    The issue you are having with your running lights and brake/turn signals is going to be caused by a poor ground. The poor ground could be either on the vehicle side or trailer side. I recommend that you first re-ground the vehicle side trailer connector. If this does not fix your issue then re-ground the trailer side trailer connector. If this still does not fix your issue then run a ground wire from each light up to the main trailer ground. This issue comes up often and it is almost always...
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  • Adding a 7-Way Trailer Connector to a 2011 Ford F-150
    The 2011 Ford F-150 should have come with either a factory 4-Way or factory 7-Way trailer connector. To upgrade from a 4-Way to a 7-Way you will need # 37185. If you follow the factory 4-Way wiring under the truck you will see where it plugs into another harness. The wiring for this other harness will have a 12 volt power wire and an output wire for trailer brakes. Pull back the protective covering over the wiring for this forward connector to find them. The power wire should be orange...
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  • Parts Needed to Add 7-Way Wiring Harness to 1999 Ford F-150
    The correct rear wiring harness depends on what you currently have on your 1999 Ford F-150. If you have a factory 4-flat then you will be able to use the Ford Replacement OEM Tow Package Wiring Harness, 7-Way # 118242. This will plug into the OEM connector on your truck, which it sounds like you have. If you do not have the factory 4-flat with the tow package connectors you will need to start by adding a 4-way. I recommend the T-One Vehicle Wiring Harness # 118344. Once installed, you...
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  • Will 7- and 4-Pole Connector Work With Custom Fit Vehicle Wiring for 2004 Ford F-150 Heritage
    Yes, the Pollak 7- and 4-Pole Trailer Connector # HM40975 will work with your Tow Ready Harness # 118242. The 7- and 4-way connector will plug into the harness the same as the 7-way connector that came with the harness.
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  • Where Does a Brake Controller Plug Into on a 1999 Ford F-150
    On your 1999 Ford F-150 with factory 4-Way flat, the brake controller port is located under the dash close to the center console. It is near the OBDII diagnostic port. I have included a link to a video showing installation of a brake controller that shows this location. Your truck uses harness # 3035-P and not # 3034-P. You will also need to add a 7-Way connector. For that I recommend # 118242 which also includes the relays and fuses to make the harness functional. You might want to check...
    view full answer...


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