Price: $26.18

Adapter 4-Pole to 7-Pole and 4-Pole

Item # 37185

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Product Images

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In Use/Installed

2011 ford f-150 wiring hopkins adapters 4 flat 37185
2011 ford f-150 wiring hopkins multi-function adapter 4 flat 37185
2011 ford f-150 wiring hopkins adapters 4 flat adapter 4-pole to 7-pole and

Customer Photos

hopkins wiring adapters 4 flat 37185
hopkins wiring adapters 4 flat 37185
hopkins wiring adapters 4 flat 37185
hopkins wiring adapters 4 flat 37185
hopkins wiring adapters 4 flat 37185
hopkins wiring adapters 4 flat 37185
hopkins wiring adapters 4 flat adapter 4-pole to 7-pole and
hopkins wiring multi-function adapter 4 flat 37185
hopkins wiring adapters 4 flat 37185

Videos


  • Wiring Adapters
  • Multi-Function Adapter
  • 4 Flat
  • 7 Blade
  • 4 Flat
  • Plug and Lead
  • Hopkins
Adapter converts from 4 pole wiring on vehicle to 7-pole round plug and 4-pole flat. Additional wire leads for brake, power and accessory. Lowest Prices for the best wiring from Hopkins. Adapter 4-Pole to 7-Pole and 4-Pole part number 37185 can be ordered online at etrailer.com or call 800-298-8924 for expert service.



Hopkins Wiring - 37185

Adapter converts from 4 pole wiring on vehicle to 7-pole round plug and 4-pole flat. Additional wire leads for brake, power and accessory.


Features:

  • Adapter converts from 4-pole wiring on your vehicle to 7-pole round plug and 4-pole flat wiring for trailer side
  • Adds additional wire leads for brakes, power, and accessory wiring
  • Wire functions:
    • White - ground
    • Blue - brake
    • Black - hot lead - 12 volt power supply
    • Purple - auxiliary
  • Mounting bracket included


Specs:

  • Connector measures 3" x 3"
  • Distance between vehicle mounting holes: 2-1/4"
  • Limited 90-day warranty


product detail

Wire Functions:
White: Ground
Blue: Brake
Black: "Hot" Lead - 12V power supply
Purple: Aux. - Reverse Lights etc.







47185B Adapter 4-Pole to 7-Pole and 4-Pole - Hopkins # 47185B, TAP # 37185







Value - This item

Adapter 4-Pole to 7-Pole and 4-Pole


Adapter 4-Pole to 7-Pole and 4-Pole
Hopkins Wiring

253 reviews

Code: 37185

In Stock

Our Price: $26.18


  • Wiring
  • Wiring Adapters
  • Multi-Function Adapter
  • 4 Flat
  • Plug and Lead
  • 7 Blade
  • 4 Flat
  • Hopkins


Adapter converts from 4 pole wiring on vehicle to 7-pole round plug and 4-pole flat. Additional wire leads for brake, power and accessory.

more information →
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Hopkins Endurance Multi-Tow 4-Way Flat to 7-Way RV Trailer Adapter w/ 4-Way Vehicle End Plug


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    Adapt a 4-way flat to a 7-way RV-style socket while still retaining use of the 4-way. Or simply replace a damaged 7-way connector. Plug into tow package for 7-way, or plug into existing 4-way and hardwire into vehicle to get additional functions.

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    Video of Adapter 4-Pole to 7-Pole and 4-Pole


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




    Video Transcript for Hopkins Wiring 37185 Review

    Today we're going to be reviewing part number 37185. This is an adapter that's going to convert from 4 pole wiring on your vehicle to a 7 pole round plug and 4 pole flat plug. This is from Hopkins Wiring. It's going to provide additional wire leads for your brake, power, and accessory functions. The mounting bracket is included. That's designed to hold the socket up out of the way protecting the wiring and making for easier connections.

    The connector itself is going to measure three inches by three inches, and the adapter is designed to plug into your existing 4 pole using this plug here. Then it's going to have 4 more wires that are exposed. Your white wire is going to be the ground wire. It's going to ground to your vehicle. The blue wire would carry the output from a brake controller.

    The black wire would run to the vehicle battery to provide power for any trailer mounted accessories requiring twelve volt power. Then the purple wire is typically used to power trailer mounted reverse lights. If you don't need to use the purple wire it can be capped off and bundled up out of the way. All the exposed wires have easy connectors on them, so the black, purple, and blue wires are going to have butt connectors, and then the white wire's going to have a ring terminal. It's going to allow you to easily connect it for a nice, secure ground connection. The connection point here on the back of the socket, that is sealed to be protected against the elements.

    The white and purple wires are going to be the longest wires. I do have them already bundled up but I did measure them. The white and purple wires are going to measure thirty-six inches in total length. Again, it's going to come with a mounting bracket and all the necessary hardware to mount the bracket and to get the socket mounted to the bracket. You can see those two little packets of hardware. Here on the front of the connector, for the 7 way round connection, it's going to feature a spring loaded lid.

    This cap is going to protect the connections when they're not in use from the elements so it's going to keep any dirt or grime off the connectors. That is spring loaded so it is going to shut automatically when it's not in use. Then right here on the 4 pole, or the 4 way flat, it's going to have a nice little dust cap that fits over the connector. Again, that's just going to protect it from the elements, keeping any dirt, grime, or moisture out of those connection points. That's going to do it for today's review of part number 37185. This is the adapter that converts from 4 pole wiring on your vehicle to 7 pole round plug and 4 pole flat plug from Hopkins Wiring. .


    Customer Reviews

    Adapter 4-Pole to 7-Pole and 4-Pole - 37185

    Average Customer Rating:  4.8 out of 5 stars   (253 Customer Reviews)

    Adapter converts from 4 pole wiring on vehicle to 7-pole round plug and 4-pole flat. Additional wire leads for brake, power and accessory.

    - 37185

    by: Tom03/27/2013


    The product itself is very well made. The 4-pin connector is molded into the product and very sturdy. The 7-pin connector is held closed by a spring and has a foam gasket to keep water out. The 4-pin wiring is only about a foot long, and the additional 7-pin wiring is a bit longer. I do not have a brake controller (but do borrow a trailer with the 7-pin wiring), so I removed those wires. I also hard-wired all the connections, so I can't speak to the quality of the 4-pin vehicle connector. The mounting bracket is thin steel, which worked well for me, as I had to bend the mounting plate to make it work for my installation. The paint on the mounting plate appears to be high quality as I bent the plate and banged it around quite a bit during install and did not nick the paint. The plate is drilled so that is can be mounted with the 7-pin hinge facing up, down, left or right. The hardware is zinc coated, so it should hold up well to the weather. I went ahead and replaced it with SS to make sure. I also replaced the standard nuts with SS nylon lock nuts to make sure nothing would back out due to vibration. If you plan on using the supplied hardware, I would strongly suggest Loctite on the mounting nuts. I installed this on a CX-5 with hitch # 87623, wiring adapter # C56011 and hitch cover # I-728. Over all a very clean installation. The connector is completely hidden inside the bumper, but easily accessible. 72768



    - 37185

    by: Chris P11/22/2012


    After taking my new SUV to the dealer to have it wired to tow my camp trailer, I was told it couldn't be done. They refused to see that the vehicle had the tow package and to help me get the last few critical pieces to tow. I guess they were too busy! So I tried a reputable RV shop that I have worked with before and they quoted me over $400 to custom wire my SUV. I knew there had to be a better option. Looked online and found etrailer. They made it sound easy. I purchased: Tekonsha PowerTrac Electronic Brake Controller (39523), Tekonsha wiring adapter (3035P) and 4 pole to 4 & 7 pole adapter (37185). It all arrived quickly and after following the instructions online and even with average mechanical skills, I was good to go in about one hour. Saved about $300 and whipped it out that fast. Why consider any other option. I am extremely satisfied. 59917



    - 37185

    by: J Musser06/01/2014


    Product was shipped and arrived sooner than expected. Mounting plate is a little thin and flexes quite a bit but shouldn't impact longevity as long as your careful when inserting plug. Unit is made of high impact plastic and wires are sealed. Don't see any reason why it shouldn't last a few years. 4 way plug didn't fit into my stock 4 way on my truck. I had to remove excess rubber in order to make it fit tight. Not a big issue but one should expect some standardization among 4 way plugs. Ground wire (white) is separate from the 4 way plug. Not sure as to why it was built that way but still functioned well. Regardless of my concerns, item was installed and up and running in about 20 minutes. I would buy again. 133653



    - 37185

    by: Ron J.08/11/2013


    I installed the ETBC7 kit a year ago, and a recent trip wiped the plug off while crossing a stream. This was a perfect replacement for my damaged plug and easy to install. 94452


    Comments

    It is working fine. No problems.

    Ron J - 08/13/2014

    6242

    - 37185

    by: Gary M12/31/2012


    Exactly what I expected it to be and it was delivered very promptly 62287


    Comments

    Installed easily and has worked well with no problems which is almost surprising as it gets used a lot......

    Gary M - 07/01/2014

    5231

    - 37185

    by: Ron V.08/10/2013


    The products I received were exactly what I needed. Installed very easily and was high quality. 94373


    Comments

    The wiring kit is working as I expected it to, excellent.

    Ron V - 03/03/2015

    9826

    - 37185

    by: Thomas03/03/2013


    Seems to be a very good product super far shipping! 68493


    Comments

    Not at all product has already broken. Need a replacement.

    Thomas M - 09/01/2014

    6594

    - 37185

    by: Tom P.06/08/2016


    I installed this along with a brake controller on my 1997 Nissan Pathfinder earlier this year and it was easy to install and the instructions were nicely detailed. I do have some mechanical skills so I would say you need to have some knowledge of electronics, but if you do some careful planning and study, most people could handle the installation. I toasted my plug on some rocks on my last outing so I purchased this to replace my original one. It's a great product. As always, etrailer is very helpful and their knowledgeable staff make it a pleasure to do business with. 259017



    - 37185

    by: Paul O01/20/2014


    Just as ordered. Have not wired up but looks simple enough. 114312


    Comments

    Still doing great.

    Paul O - 01/20/2015

    8768

    - 37185

    by: Gene R12/13/2016


    Absolutely Superb Service! On the 23rd of September at 10:10 a.m., I ordered a brake controller and several other items from the etrailer.com website. By 12:16 p.m. of the same day, I received a notification from etrailer that the order had shipped. The complete order arrived at about noon on the 26th. Ordering on the website was easy. All items were described very clearly and pictures were provided for them. The service at etrailer is absolutely superb. I would recommend this company, without hesitation, to anyone needing trailer parts or accessories. 324676



    - 37185

    by: Trubee K.01/20/2012


    Item 37815 was easy to install. It took me only about 20 minutes in 20 degree weather--on my back in the driveway to complete including drilling holes for the bracket. I plan on using the trailer tow items to pull a double axle car trailer. Although I am very mechanically inclined, your videos and articles made the job a breeze. Your customer service and e-mail support were also excellent. You have an excellent selection of items that appear to be av ailable with no delay. I would recommend your company to anyone with confidence. 30036



    - 37185

    by: sam08/22/2014


    2008 ford explorer limited. the truck came with a 4blade pin on factory 1 1/4 hitch. i added this round7 way. Look under dash there are a factory brake controller plug under the dash, it does not matter if you have tow package or not, its there. The problem is the brake controller output for brakes and 12volt hot does not go anywhere after the plug under dash. So you still need the output from controller for brakes and 12volt battery wired back to plug. If you have tow package its all there plug and play. 148120



    - 37185

    by: Ken W09/16/2017


    This has been a great connector. Had it on the truck now about a year. The metal mounting bracket is very flimsy but has held up fine. Have to make sure I hold the assembly when plugging or unplugging. The 4 pole plug on the back/truck side was not a direct fit. Had to cut the plugs off and splice wires. Used this plug for both my 7 pin trailer with brakes and 4 pin utility trailers. It's not as sturdy as a factory installed one but it gets the job done just fine. 433005



    - 37185

    by: Chris C.06/07/2014


    Nice quality adapter harness. I would highly recommend etrailer.com 134651



    - 37185

    by: Michael B.03/29/2012


    Most people are skeptical about ordering online, however, etrailer is a company that has gone above and beyond most. From the intial phone call to the follow up contact. Price was inline with most, packaged arrived as promised along with visual map tracking, and online video made installation a breeze. I bought the hitch and wiring for my Volvo XC90 and would HIGHLY recommend etrailer to anyone! I will definetly use etrailer again in the future 35482



    - 37185

    by: Bill P.05/10/2017


    Hitch arrived in a timely fashion. Installation was a breeze and the fit and finish were perfect. Wiring harness hooked up perfectly. etrailer made the whole process simple. I just ordered another hitch and harness for our new car. 379041


    Comments

    Thanks for the great review on our Wiring Harness and the picture, Bill P!!! We at Hopkins think that you will be pleased with this product. Looks like your are all set to enjoy camping. If you have any concerns or questions, please get in contact with us. Thank you!

    Hopkins C from - 05/11/2017

    23759

    - 37185

    by: Tracey W08/27/2016


    After trying to figure out how to hook up our 7 pole cord to the 4 flat on our new Mazda CX5, I called the experts at etrailer. The representative quickly told me about the 37185 adapter which was exactly what we needed! Fantastic customer service, great product, easy to install (just plug in to our existing 4 pole on the car and attach ground wire), works great and still gives us the option of using a 4 pole if we need it. 288448



    - 37185

    by: tom08/24/2015


    I got the ordered products in a timely manner and the quality is great. Only issue was the sub-harness to connect the F-350 harness to the electric brake controller was ordered correctly, but the incorrect part was sent which delayed installation. Nonetheless the issue was quickly resolved and a correct sub-harness was sent. Appreciate all the support; will definitely order from etrailer again. 221390



    - 37185

    by: Tate11/19/2016


    Great product was easy to install. I have an '08 Ford E350 that was not set up for trailer wiring. It did have the brake controller wiring under the dash. If anyone has questions as to how to set this up if be glad to share my experience. I also have the etrailer 4 pin system that tied into this. Once I figured out the wiring it was easy to install looks custome or at least dealer installed. 318205



    - 37185

    by: Jon C. WA State05/22/2012


    Got my part at a reasonable price and installed all in the same day. But what really impressed me was a year ago when I installed my trailer brake controler and my SIlverado was suppose to have a OEM tow package..., wrong answer. It had only had trailer lights. So with the help of etrailer and a few emails and the right parts, I got everything installed and have been impressed ever since. 41317



    - 37185

    by: Rick B.08/12/2015


    Product was easy to install based on simple instructions. Not sure why two wires were short and those being the ones that had to be connected, and one optional wire was long. I know the plug fits various vehicles but another few cents worth of wire that the customer could discard if not needed would have been easier than splicing them and risking a loose connection. 218750



    - 37185

    by: willyb10/26/2013


    Looks like a very well designed and made product. I'm pleased and will use it on my car. However, I expected to get some info re what the pigtails need to be connected to on my car so all my trailer lights and brakes will work. We don't have our trailer yet... we have a Parkliner on order since last April; delivery date 25 October... Wish us luck. Thanks. 105263


    Comments

    The last photo in the gallery has a diagram of what wires serve what functions. The ETBC7 kit might be better suited for this application. It uses this same 7-Way but adds all the other parts, save for a working 4-Pole, to complete the install.

    -- Patrick B - 11/01/2013

    2262

    - 37185

    by: tlbranth08/08/2015


    If you have 4-flat and need RV, this is the connector for you. Easy to hook up (unless you need to wire in the brake controller). I needed to convert my Corolla 4-flat to 7-pin RV to match my VW Vanagon and motorcycle trailer with newly installed brakes. I haven't hooked up the brake controller yet on the Corolla but I needed the plug compatibility 'til I do. 217850



    - 37185

    by: Chad C03/18/2011


    Very nice. I bought 2 of these and they have the mounting bracket and everything. One of them was perfect, the other had the wrong hardware. There are 4 bolts that mount the unit to the bracket, and the head are small so they recess into the 4 holes in the plastic, but I did not get the right ones in one order. That's okay, I can go buy hardware. 9775



    - 37185

    by: Charles03/08/2015


    I ordered the wrong Item on fault on your part. You sent me what i ordered. I have since return the item and reordered the item i needed. Thanks to your customer service she help me to order the right part. it came in on the 4th. It looks like it's what needed. Soon as the weather clears up enough I'll install it. Thank for Your help. 177508



    - 37185

    by: Red C.05/20/2013


    I use this matching unit to replace the broken cover(plug lock) parts & spring on my hard wired connection. It's a good product unless/until the plastic hinge breaks(especially if one backs into something). It's less costly to strip/swap parts than a new plug + rewiring. Just wish they made a metal version, or could get select "parts". 81184



    - 37185

    by: Joe W Ratajczak03/20/2012


    Just what I needed, but I am not installing it. Just planning on using it when I need to hook up my seven pin plug and then dis-connecting it. But if I wanted to mount it to my car, your video on the Ford Explorer couldn't make it any clearer. Great job. The installation would probably take about as long as it does to watch the video. 34490



    - 37185

    by: Andy Sommer07/16/2016


    Prior to contacting etrailer, I went to a local trailer place and they said a separate line would need to be run from the cabin back the tailgate. Checked out etrailer and not so. Tech support on the product was very good and the install straight forward just by tapping into existing electrical lines. So far so good. 272481



    - 37185

    by: Jacob H.05/02/2013


    The pictures available on this site made choosing and ordering the right items so much more satisfying. I didn't have to worry about the wrong items coming to me and then modifying them to fit my purposes. If I ever need more trailer supplies (which is very likely), I will definitely come back to etrailer.com for my needs. 78690



    - 37185

    by: Joe B06/11/2012


    This is the second time I have ordered trailer parts from etrailer.com. In both instances the parts were shipped and received in only a few days. Further the website videos were also very helpful in understanding how to get the parts properly installed. I would recommend etrailer for their quality of parts and timeliness. 43722



    - 37185

    by: Dave C.12/17/2016


    I haven't installed chains or boat trailer plug and 7 way cord yet.I would like to say that etrailer's quick shipping is second to none!!I buy a lot of things on line like ebay,but I am really impressed by your U.S map tracking system.Before I bought my items I emailed you to make sure of the fit,Your response was fast. 326755



    - 37185

    by: Pete01/03/2015


    The hardest part of this install was trying to figure out where exactly I wanted it installed. I had to drill a couple of mounting holes in my bumper, used a counter sink to make the mounts flush with top of bumper and reinstalled the old vinyl bumper cover to hide the bolts. Looks better than factory installed. 167636



    - 37185

    by: Don Corey12/31/2014


    I received the adapter within a week of ordering. I thought this was fast as it was the holiday week. The adapter is very well made and and looks like it will hold up very good in my north east weather. Thanks for a great product at a great price. I will refer my friends and will be doing business with you again. 167381



    - 37185

    by: John01/21/2013


    Just what I need to tow an RV trailer. Also has a four flat connector. Very easy to install on the 18136 bracket. 63719



    - 37185

    by: Greg M.08/14/2017


    Take about plug'n play. This is it. Plugged into my existing 4 pole receptacal, drilled one small hole in the frame for the ground wire attachment, and mounted the 7 pole receptacle to the hitch. Looks to be a well built unit. Sturdy body, resin sealed in the back, sealed door on the front, and sturdy wires. 420091



    - 37185

    by: Royal D.11/08/2013


    I use these adapters to install 7-way connectors on trucks that have no factory trailer wiring provisions. 106803



    - 37185

    by: Bub R.03/19/2014


    Just what I needed and Bill was very helpful. Shipped the day I ordered. Excellent service. 121250



    - 37185

    by: Heath R07/27/2016


    this product works great. I had it on my 97 Chevy k 1500 Z71 and with the receiver hitch the only way i had to install it was under neath the bottom of it. 2 days after I had it on my truck I went across the creek to my Barn and broke it all to pieces. so I have had to order another one. 276724



    - 37185

    by: Joe K.05/26/2017


    Item shipped very quickly and I used the follow up email from George to find a pretty clear explanation from Michael H. to a frequently asked question about installation. I was pretty sure I knew how to install for "lights only", but that explanation took care of any doubts. Thanks. 385178


    Comments

    Hopkins appreciates your business, Joe and we are grateful you purchased our Adapter. If you have any concerns or questions, please get in contact with etrailer customer service. Thank you!

    Hopkins C from - 05/30/2017

    24323

    - 37185

    by: Jeff T03/20/2013


    Excellent Product. Very easy to install and I am a Contractor not a mechanic. 71656



    - 37185

    by: Lonnie J.03/30/2015


    I don't know much about wiring or wiring plugs for trailers and when I ordered a wiring plug from you , you explained everything very well ! The adapter plug I ordered was impossible to find where I live! Thanks for all of your help and the fast delivery of my adapter. 181782



    - 37185

    by: Gary g04/03/2015


    This installed easily on my 2002 Dodge Ram 1500. Went right into the bumper and plugged right in. Watch the video before installing. As video shows you need to shave a little plastic off for it to fit into the bumper. Might have taken 15 minutes to install. 182729



    - 37185

    by: Don08/25/2016


    Arrived timely and was we were expecting. Purchased with the Tekonsha Prodigy P2 Trailer Brake Controller. Easy to wire in, though we did remove butt connectors and hard wired/soldered all of our connections. Time now will tell the rest of the tale. 287549



    - 37185

    by: Fred05/04/2015


    Worked great on my 2010 F-150 without the towing package. The blue wire (blue on plug) on the factor harness is the brake controller and the orange wire provides 12V power (black on plug). The truck was missing the required 30 amp fuse and high power relay. 190130



    - 37185

    by: Mike03/29/2013


    It went on like a perfect fit on my 2008 fj cruiser 73183



    - 37185

    by: Alan Pereira06/07/2017


    I had a great experience with etrailer, they had the knowledge to help me choose the right parts and were there to guide me. I could save few bucks with shipping but it was worth it and if I ever need again will buy from them. I recomend. Thank you. 390238


    Comments

    Thanks Alan for the great review and rating!! Hopkins appreciates your business.

    Hopkins C from - 06/13/2017

    24973

    - 37185

    by: Ted G08/27/2016


    I found the staff at etrailer was very patient and helpful as I worked through a issue I had with the Trailer Connector with test lamps. Turned out I needed to use the Trailer connecter without test lamps with the Tekonsha Voyager break controller. 288485



    - 37185

    by: TJ10/11/2012


    Quality: good Description: excellent Instruction poor (none) Shipping: very fast (delivered in 2 days) Good product, if you know how to hook up, you will have no problems. All ends are pre-terminated and ready to go. Overall a great product. 56947



    - 37185

    by: Jon N.05/20/2014


    The product was as described. For those of us that are novices dealing with electrical matters it would be helpful if you would make the point in the instructions that the white ground wire needs to be grounded on the vehicle not the trailer. 131455



    - 37185

    by: Alan J.11/28/2012


    I am pleased to inform the E- trailer team that my first experience with E-Trailer will certainly not be my last. Good job E- Trailer. Getting my order out the door so fast barely gave me time to watch the relevant videos. Alan J. Moody, ME 60170


    51
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    • First I recommend going with a 7-Way blade style for your trailer and truck because that is the most common advanced function connector used. To add one on the trailer you can use # PK12706. If your trailer only has the basic light functions then you will only need to cut off the 4-Way and attach the wires according to the diagram I have included. Please note that when you attach the existing wires to the connector you cannot just go by wire color. You will need to go by function in...
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    • Installing Brake Controller on 2008 Dodge Ram 1500 4x4
    • Thank you for sending the photo, it really makes things easier! The connector you show in your photo is not the connector for installing a brake controller. If you look on the firewall behind the emergency brake, you will see a white wiring junction box. The blue female connector that accepts the # 3020-P brake control wiring adapter is located alongside or on top of this junction box, as you can see in the photo I have edited for you. I have also linked you to an install video that...
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    • Wiring Harness for 1999 Ford F-250 and F-350 Super Duty
    • If your 1999 F-250 Super Duty pickup had a factory 7-Way wiring harness and the, under vehicle connector has not been damaged you could use the Ford Replacement OEM Tow Package Wiring Harness, 7-Way (Super Duty), item # 118243, and if you had a factory 6-Way connector then you could use the Ford Replacement OEM Tow Package Wiring Harness, 6-Way (Super Duty), item # 20029, to replace your pigtail. If you would like to hard wire a new connector to the truck then you will need to use a...
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    • Is Using a Brake Controller Necessary for Towing a Trailer
    • If the trailer is equipped with electric brakes and you want them to actuate, you'll need a brake controller. A brake controller is a fairly small investment that will go a long way to keep you safer when towing. There are two types of controllers, the older time-delayed variety and the newer proportional type. I'd recommend going with a proportional controller like the Tekonsha Primus, part # TK90160. A proportional controller can sense how quickly the tow vehicle is braking, and...
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    • How to Wire a 7-Way Trailer Connector on a 1994 Chevrolet C/K Pickup
    • To wire a 7-Way trailer connector at the rear of your 1994 Chevy pickup, you will need to start with a working 4-way connector, item # 118315, if your truck is not already equipped with one. You would then use the 4 Pole to 7 Pole and 4 Pole Adapter, item # 37185, and plug in the 4-Way on the truck to provide the stop turn and tail light functions in the adapter. If you do not need the brake control feed wire, 12 volt power wire or backup wire for your trailer you can tie one or all...
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    • Brake Controller and 7-Way Trailer Connector For 1995 Chevy C/K 1500
    • As a first step, you would need to select a brake controller. I would recommend the Tekonsha Prodigy P2, part # 90885. The P2 is extremely reliable and easy to use, which makes it one of our all-time best selling brake controllers. Most of the Chevy trucks of that era had a blue and an orange or red wire ran along the frame rail for installing the controller. At the rear of the vehicle, they usually terminate on the end of the drivers side frame rail or above the spare tire. In the engine...
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    • How to Install a 7-Way Trailer Connector on a 1998 Dodge Ram for a Brake Controller
    • If your 1998 Dodge Ram did not come with a factory 4 or 7-Way trailer connector, then you will need to first install Tow Ready Custom Fit Vehicle Wiring, # 118329. I have included a link to a video installation and a link to the installation instructions for reference. You would then need to install a 4 and 7 Way Installation Kit, # ETBC7. We have a couple of detailed FAQ articles on this installation which I have linked for you. I have also included a video link showing a typical installation...
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    • Where is Factory Brake Controller Plug Located on 2002 Ford F-250 Super Duty
    • On your 2002 Ford F-250 Super Duty the factory brake controller plug will be located under the dash, near the steering column. You will be looking for a 6-prong gray rectangular plug. The location for the plug should be under the steering column toward the left. I am including a link to a video of a brake controller installation on a 2000 Ford F-250 Super Duty. It will show the brake controller plug and the location. If you have a factory 7-Way connector on your truck, all you will need...
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    • Parts Needed to Install 7-Way on 2016 Ford F-150 with 4-Way
    • For your 2016 Ford F-150 if your trailer does not have brakes all you would need is the part # 37185 as an adapter to convert the 4-way to a 7-way. If you do have trailer brakes you would need the # 37185 and the install harness part # 22292. If you check out the install video I attached you will see how the connections would be made. For a brake controller I would recommend the Prodigy P2 Brake Controller part # 90885. This is our best selling brake controller because of how well...
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    • Installation of 7-Way Connector on a 1997 Ford F-350
    • I am including a link to a FAQ page on trailer wiring. It will show the 7-Way trailer connector functions and the 7-Way vehicle connector functions. At the bottom of the page is a chart that will list the wire colors by vehicle manufacturer. This chart is only a guideline because the vehicle manufacturers can change the wire colors over the years. I would recommend to use a circuit tester like the Quickee Tester, part # 3808, and test the wires for function on your 1997 Ford F-350. If...
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    • Installation and Wiring of P2 Brake Controller On a Fleetwood Freighliner MotorHome with Air Brakes
    • The best procedure for installing the Tekonsha Prodigy P2 Brake Controller, part # 90885, on your Fleetwood Motorhome with a Freightliner chassis and air brakes is to follow the Brake Controller manufacturers instructions. I contacted our representative at Freightliner, he informed me that if the motor home is a 2004 or newer there is a 6 pin connector under the dash that will be labeled either "TRBRK" or "TBC." This connector can be removed and the wires can be hard wired to the brake...
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    • Parts Needed for Adding a Charging Circuit for a Trailer Battery while Towing with a 2008 FJ cruiser
    • You have it figured out. You will need an appropriate length of 10 Gauge Wire, item # 10-1-1, and a 40 amp circuit breaker, item # PK54540, to provide 12 volt power to the trailer connector at the rear of your FJ. This will provide a maintenance charge to the trailer battery while towing the trailer. You will not need to make any changes at the fuse block on your vehicle. The 12 Volt power wire connects to the number 4 position inside your 7-way connector, see the photo in the trailer wiring...
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    • Parts Needed to Install 7-way Trailer Connector on 2011 Honda Pilot
    • The procedure for installing a 7-way trailer connector will depend on whether your Pilot is equipped with the 4 or the 6 cylinder engine. 6 cylinder engines are equipped with the factory towing connector located behind the bumper on the driver's side (see photo.) If this connector is present, you can indeed install the Tekonsha 7-way, part # 118253. The taillight converter as well as the necessary fuses and relays are included to activate the factory tow package. If your Pilot has the...
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    • Adding a 7-Way Trailer Connector to a 2010 Ford F-150 with Factory Installed 4-Way Flat Connector
    • To convert the factory 4-Way flat trailer connector on the back of your 2010 Ford F-150, you will need Adapter 4 Pole to 7 Pole and 4 Pole, # 37185. You will plug the factory 4-Way into the back of the adapter and hardwire the remaining 4 wires. The white wire gets grounded to the vehicle frame. The blue wire on the adapter carries the brake controller output voltage, and the black adapter wire carries the 12-volt accessory voltage for any trailer mounted accessories that might need...
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    • Wiring Diagram for a 7-way Connector On a 2006 Ford F150
    • Yes, We have a diagram on our wiring page (see link). This diagram is viewed from the inside of the connector where the wires attach. If your truck has a 4-Way connector we have a 7-Way installation kit,item # 37185, that will make installation of a 7-Way connector at the rear of your truck easy. You will plug in the existing 4-Way and then wire the trailer brake, power, and auxillary wires to the circuits needed. The brake feed and power feed should be found along the trailer frame and...
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    • 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...
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    • What is Needed to Wire a Brake Controller on a 1996 Dodge Ram Pickup
    • If your 1996 Dodge Ram has the factory 7-way connector at the rear of the vehicle, then all of the wires for the brake controller have been run. You will just need a brake controller wiring adapter. I recommend using part # 3020-S. This adapter plugs into the brake controller plug under the dash, to the left of the steering column taped to another harness near the emergency brake pedal. The four pigtail wires on the other end will be butt-connected to the brake controller, color to color. If...
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    • How to Convert Trailers Air Brakes to Electric Brakes
    • The Warner Air Utility Brake Control# 1300-80, which you reference, is designed for towing vehicles that have air brakes and trailers that have electric brakes. If you want to convert your trailer's air brakes to electric brakes you will want to remove the air brakes and then install the electric brakes from scratch. You will need several items to add electric brakes to your trailer. Starting with the trailer you will need a hub and drum that matches the bearings and seal on your trailer...
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    • Wiring Tow Vehicle to Work With Tekonsha Prodigy RF # 90250
    • You are pretty much on the right track. You will indeed need a 4-pole to 7-way adapter like part # 37185. In addition to the lighting functions provided by the 4-pole, you will also need to run the black 12-V power wire from the adapter to the positive battery terminal via a 40 amp circuit breaker like part # 9510. A length of 10 gauge wire like part 10-1-1 (sold by the foot) would also be needed. The power wire is needed to supply the power module mounted on the trailer. The white wire...
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    • Where to find the Electric Brake Wire on a 2006 Ford E250 Van
    • If your Ford E250 Van is equipped with the under dash plug for installing a brake controller that matches the Brake Controller Wire Replacement for Ford, item # 3035-P, then the blue wire should be terminated along the inside driver side frame rail near the spare tire, at the rear of your van, see photo. Many times there is a connector there and the blue wire will enter the connection but, is not continued on from that point. You would need to connect the blue wire from the Adapter 4...
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    • Upgrading Trailer Wiring on a 2002 Toyota Sequoia from a Factory 4 Wire to a 7 Wire RV Plug
    • To upgrade your 2002 Toyota Sequoia to a 7-Way RV style connector you will need to add a 4-Way to 7-Way adapter, like the Adapter 4 Pole to 7 Pole and 4 Pole, item # 37185. There is a 4-Way connector on the back of the adapter that you plug your existing 4-Way connector into, then you will need to hard wire the remaining wires. There is not a factory style 7-Way connector available for your model. The black is for 12 volt power and is connected to the vehicle battery through a 40 amp...
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    • Parts Needed for Setting up a 2003 Dodge Ram 1500 For a Trailer with Electric Brakes
    • If your 2003 Dodge Ram 1500 came with a 7-Way trailer connector from the factory it is pre-wired for a brake controller. If this is the case, all you would need is a brake controller and the wiring harness to plug the controller into the port under the dash. Our most popular brake controller is the Tekonsha Prodigy P2 # 90885. It is a pretty easy controller to use and is quite effective. The proper wiring harness for a 2003 Ram with factory 7-Way is the # 3020-P. The whole set up would...
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    • What Wire Gauge Needed for 12V Trailer Power Feed
    • A 12V trailer power circuit will typically be wired with 12-gauge wire, part # 12-1-1, but certainly there is no harm in using heavier 10-gauge wire # 10-1-1. If one tow vehicle is longer than another, our installers may opt to use the heavier gauge wiring than they would for a physically shorter vehicle. When in doubt you can always use 10-gauge.
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    • How to Install a 4-Way Trailer Connector on a 1994 Ford Ranger Truck
    • If your 1994 Ford Ranger does not currently have any trailer connector, the simplest way to install a 4-Way plug would be to use custom plug-in wiring harness # 118325. This harness would be installed at the factory connector that is located underneath the rear of the vehicle, along the inside of the left rear frame rail. I have included a link to the instructions below, if needed. The # 37185 adapter would convert an existing 4-Way plug to a 7-Way. If you need to adapt to a 7-Way...
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