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48" Long 4-Pole Loop with Cover

48" Long 4-Pole Loop with Cover

Item # HM47115

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48" Long 4-Pole Loop with Cover 4 Flat HM47115
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  • Wiring Adapters
  • Single-Function Adapter
  • 4 Flat
  • 4 Flat
  • Plug and Lead
  • Hopkins
  • 4 Feet Long
Lowest Prices for the best wiring from Hopkins. 48" Long 4-Pole Loop with Cover part number HM47115 can be ordered online at etrailer.com or call 800-298-8924 for expert service.


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Hopkins Wiring - HM47115


4-Way Flat Wiring Harness Extension

  • Extends your current 4-way connector 48"
  • Includes cover and grease


47115 48" Long 4-Pole Loop with Cover






California residents: click here


Video of 48" Long 4-Pole Loop with Cover


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




Video Transcript for Trailer Wiring Harness Installation - 2008 Chevrolet Express Van

Today on our 2008 Chevy Express Van, were gonna install the Hopkins 4-Pole wiring kit with part number 31345. First, were gonna need to access the rear cargo area of the vehicle. Behind each taillight is the manufacturers connection. Well be plugging inline with this connector. To make our connection, well need to split the two manufacturers connection. Pressing on the locking tab, well pull them apart.

Now we can take our new Hopkins connector and plug inline with the manufacturers. Next, we can take our white wire with the ring terminal already pre-attached; this is our ground wire. Here to the body of the vehicle is a manufacturer ground. So what well do is go ahead and remove this bolt and make our ground connection here. Alright, now weve got our ground bolt removed, you can see that it wont fit to the ring terminal.

So what Im gonna do is go ahead and cut it off and replace it with the one thats slightly larger so itll fit to the manufacturer ground. Well go ahead and reinstall our ground stud with our new ground. Now were gonna go ahead and route the converter box 4-pole wire and our red power wire in the hide in paneling and bring it out the lower access. Now with those wires in place, were gonna go ahead and set them aside for now and route the passenger side connector and green wire over behind the taillight on the passenger side. To do this, well just gonna follow the manufacturer wiring up and around the door frame.

As I go along, Ill just use some black zip ties to secure the wiring. Now weve made both connection points behind the taillight and we secured the wiring, lets go ahead and go back, cut up any excess from the zip ties with a pair of side cutters. This will just clean up our install a little bit. Alright, now that weve got our signal wire run and secured, we need to go back and add to our power wire. Our red wire with the yellow butt connector comes directly out of our converter box and well add it to the additional red wire supplied with our install kit.

For a little added security, Im gonna go ahead and wrap the connection point with some black electrical tape also. This will help to keep out any dirt, moisture and debris. Now, both wires, which is our 4-pole connection point and our red power wire need to be routed outside of the vehicle. Were gonna run straight down to the inside of the body panel using a couple of metal clamps to secure our wire and routing it along the floor, underneath the weather stripping and outside the vehicle that way. For an added security measure, you may add a zip tie here to secure their wiring and our converter box. Now to route our wires, well just come along the floor of the van and out the corner. What Im gonna do is take a pair of tin snips and cut a little of the body away so that we can make that corner and reinstall the wire stripping. Then we can feed our wires underneath the vehicle where our 4-pole will be routed over to the hitch and our red power wire is gonna get routed up along the frame to the battery. Were gonna be extra careful to stay away from moving components such as a steering or suspension or excessive heat such as the exhaust. Were just behind the front axle of our vehicle and weve run out of length from our power wire. The reason for this is because were working with an extended version so the length of the power supplied in our install kit isnt quite long enough. But now what were gonna do is strip down the wire and well add a butt connector and some additional length to our power wire. Just as I did before, well go ahead and tape up the connection point. Now we can go ahead and continue routing our wire. Alright, now weve got our power wire straight up into the engine compartment. Were right here at the battery so Im gonna install to the manufacturers wiring over to the positive battery terminal. Now, before I completely secure my wiring, we need to add a fuse holder. To do this, Im gonna cut off any excess length from my power wire, strip it back and add it to the butt connector on the fuse holder. Just as we did earlier to our butt connectors, were gonna go ahead and use some black electrical tape and tape this one also. Now, before I make my connection to the battery, Im gonna go ahead and remove the fuse and then reinstall it after we make our connection. Now we can go ahead and make our reconnection with our power wire ring terminal to the battery. However, with the side post mounted battery style, youll need to add a battery extender to do so part number DW05416. To add our extender, first well need to remove the old battery post. Now, to remove the positive battery terminal from the positive battery cable, well need to go ahead and push it out from being held in with the rubber coating around it. Now that we have the old one out, we can go ahead and install the new one then well reconnect the positive battery cable. Now well go ahead and remove our hold down nut and install our ring terminal and well secure that with the hold down nut and tighten it down. Now were ready to go ahead and reinstall the fuse in the fuse holder. As you can see, our 4-pole connector isnt gonna be long enough to attach to center of the hitch. So what well do is to add a 4-pole loop made by Hopkins part HM47115. As part of the install kit for our 4-pole loop comes dielectric grease. Well go ahead and take some dielectric grease and place it directly into the connector. Once theyre firmly together, Im gonna go ahead and take some black electrical tape and tape up the connection just to assist in keeping out any dirt and debris. Now weve got our connection made, well go ahead and route it to the center of the hitch. Now well go ahead and take some black zip ties to secure our wiring then we can take the end cap provided with our new 4-pole loop and install it at the end of our new 4-pole connector and secure it to the hitch. Thatll complete the install of our new 4-pole wiring by Hopkins part number 31345.


Customer Reviews

48" Long 4-Pole Loop with Cover - HM47115

Average Customer Rating:  4.9 out of 5 stars   (56 Customer Reviews)


- HM47115
by:

I have now installed the following on my 2017 Wrangler: Brake light relay kit . Hopkins Towed vehicle Tail Light wiring kit. Blue Ox base plate. Blue Ox Patriot Portable RF Braking System. All of this has taken about 3 days of work spread out over a week or so. Overall it went well. Not too many surprises. Crawling around under a car at 71 is a bit of a strain but I'll get over it. I must say that Donna P. has been a wonderful source of great information and has stayed right on top of the process. eTrailer has been a great source for this project. I would recommend you all with no hesitation. 394414


Comments

I am still in love with the products. My only issue is having enough time to use them more.

John M - 06/15/2018

39807

- HM47115
by:

Works as described. 659255



- HM47115
by:

Along with 7-pin to 4-pin adapter this added the length I needed for my cargo tray I had purchased from etrailer years ago. 657912



- HM47115
by:

Good quality, 634386



- HM47115
by:

Just what I required. No problems or issues with purchase or installation. 611023



- HM47115
by:

I bought this item because I have one trailer and three different vehicles set up for hauling it. Each of the vehicles have different length pigtails, which pose a problem. This was an inexpensive solution! Much easier than extending the wires on two vehicles or the trailer. It's well-made, good price and shipped quickly. Thanks 590148



- HM47115
by:

Works perfectly, just as described. I used mine when I was installing of the ModuLite Circuit Protected Vehicle Wiring Harness Item # 119190, so I didn't have to back up to the camper when checking function before I finished the install. Now it will be extra parts if I need it. 523108



- HM47115
by:

Works perfectly. Plug and play. 522691



- HM47115
by:

Excellent quality. They thoughtfully included dielectric grease and a protective cap to help prevent corrosion so you don't have bad connections and dead lights. 498927



- HM47115
by:

excellent product, excellent price! 471196



- HM47115
by:

I love the new setup for my truck. I changed the receiver to a Draw-Tite Ultra Frame model and mounted the connection on the receiver. It works great and accommodates both of my trailers with the 7 pin and 4 pin connections. Couldn't be more pleased. My rewiring of my light trailer is flawless, solid connections and good quality. Thanks! 452912



- HM47115
by:

Snapped right in to extend my trailer light wires. 437943



- HM47115
by:

Lightening fast shipping. Everything you need to know is in the videos. I received package super fast and wired entire vehicle in a few hours. 2017 Chevy Express van with no factory wiring. I did the entire thing. It's dark out side so I can't take pics. 428355



- HM47115
by:

Quality products, good prices, delivered on time 424476



- HM47115
by:

Great service and selection, shipped fast and arrived ok. Parts work very well, and so far so good. Still working on a more secure and adjustable mounting solution so the light can be seen when the rack is up or down. 420185



- HM47115
by:

Worked perfect. 412562



- HM47115
by:

The products received were as expected. All fit as they were supposed to. Thank you to Rebecca for steering me in the right direction with the extension wiring. 393073



- HM47115
by:

Perfect for my needs. Easy installation. 378290



- HM47115
by:

as always high quality, good pricing and quick delivery 375165



- HM47115
by:

Lights have worked exceptionally. I didn't experience the wiring difficulties expressed by others, and I have the larger cargo carrier. My only complaints are that the wiring plug to the light fixture is exposed to the cargo and can be damaged, and the fixture itself can be pushed out by cargo. I made a protective cover mount to correct these problems. I would note that the above complaints can be applied to all the light fixtures I reviewed across the internet. 373509



- HM47115
by:

Excellent quality. Good product. Using it to extend from my boat trailer wiring connection to my truck. Needed because I have a camper on the truck and also needed to have extended slide-in hitch extension. 372001



- HM47115
by:

Working great :) 366967



- HM47115
by:

Very handy when you need a little extra length. I would buy again from this seller. 362387



- HM47115
by:

well made!!!! 351241



- HM47115
by:

Works great as an added extension for when the other cable is shorter than you like it to be. 326333


Comments

I have used this numerous times and works well.

Chris B - 12/19/2017

32083

- HM47115
by:

Product was exactly what I was looking for. No one local carried it. Quality was excellent as was the service. Great job from a great company. Merry Christmas to all at etrailer. 322411


Comments

Still working great!

Bob M - 12/05/2017

31462

- HM47115
by:

Worked just as I hoped it would 307705



- HM47115
by:

perfect 307631



- HM47115
by:

Perfect fit... 307438



- HM47115
by:

product was easy to find, etrailer is very responsive to shipping questions and stuff just works! I'm going to keep buying from these guys! 305652



- HM47115
by:

Wayne H. was very helpful in my choices. 305174



- HM47115
by:

Nicely made trailer light extension. 300858



- HM47115
by:

*Although I have not installed the trailer jack yet it looks like a direct replacement for the original one on my boat trailer. The wheel that goes with the jack definitely looks like a better fit than original. *The electrical 4 conductor plug set... I'm using for a quick disconnect for a third ( center ) brake light for tailgaters 296748



- HM47115
by:

Exactly as described, good quality. 282408



- HM47115
by:

Found exactly what I was looking for at etrailer. I purchased an 18" hitch extender to aid in launching my skiff. I paid for 3 days shipping and it arrived in 3 days along with the accessories I ordered. All products very well made and did the job. 246443



- HM47115
by:

Great product quality and customer service, fast shipping. 237523


Comments

No problems at all.

Udo H - 02/10/2017

22433

- HM47115
by:

it worked well, thanks for a quick resp onse 235797



- HM47115
by:

Item arrived and was as described. I felt what was really worth mentioning was the customer service. I had problems ordering on my smart phone due to coverage, so I had to call. I spoke with two customer service representatives and they were both fantastic. It's refreshing to see there is still a company that obviously cares about service. 231639



- HM47115
by:

The cargo tray is exactly as I expected. It meets and exceeds expectation. The LED light kit however is a big disappointment. The connector significantly protrudes into the cargo tray. Because of its design it is very susceptible to any load pushing it out of its socket onto the road. It would have been perfect if it had a pigtail connector instead. And the wire harness is to short! In the future suggest an extension. Oh well. When the inevitable happens I will make my own. 219938



- HM47115
by:

The 12" Ball Extension Bar works Great! It allows me to make 90 Degree Angle Turns without hitting my trucks bumper. Of course I need to extend the electrical light connection (HM47115), just had to trim the soft plastic to fit perfectly into my trucks connection. 212342



- HM47115
by:

Great 199089



- HM47115
by:

I had a Question about a connection and Melinda did a fantastic job of searching and finding the fitting I needed. Prices are always lower than any I've found on line. Will definitely buy from them again. Thanks. 187182



- HM47115
by:

Exactly as depicted in image. 172316



- HM47115
by:

The product was exactly as advertised. It arrived in good condition and I have no complaints. Etrailer is an excellent company with which to do business. 171511



- HM47115
by:

Product arrived on time. Very satisfied with product. 158337



- HM47115
by:

Works as advertised....... 150800



- HM47115
by:

simple device but useful will work well for my application. Only thing that would make it better would be to include some type of Velcro cord manager for it. 149302



- HM47115
by:

fast and convenient way to shop 139938



- HM47115
by:

Arrived on time and was exactly what I need 134122



- HM47115
by:

Used this as a extension to go under the back door so when it wears out I replace this piece. 131133


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Ask the Experts about this Hopkins Wiring
Do you have a question about this Wiring?


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  • We do have a base plate kit and everything else that you will need to flat tow your 2018 Chevrolet Equinox! I recommend using the Roadmaster EZ5 Base Plate Kit # RM-523193-5 for a base plate kit. It features removeable arms that will give your Equinox more of an OEM look when you are not towing it. You will also need a tow bar, safety cables, vehicle tow bar wiring, a supplemental braking system, and possibly a high-low adapter. For a tow bar that is compatible with your EZ5 base...
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  • As long as the 2016 GMC Yukon Denali has 4WD with a two-speed transfer case that has a Neutral and 4 wheel drive low setting, you can flat tow it with all 4 wheels on the ground behind the 2018 Allegro Bus. If the GMC has 2WD, it has to be towed with a dolly with the rear wheels off the ground. When flat towing or dolly towing, the battery does need to be disconnected. You can use a Roadmaster quick battery disconnect part # RM-766. The Roadmaster battery disconnect allows you to wire in...
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  • Recommended Flat Towing Base Plate and Wiring for a 2013 or 2014 Honda CR-V
  • For a 2013 Honda CR-V we have the Blue Ox Base Plate Kit - Removable Arms # BX2258 that will work well with your Blue Ox Tow Bar. I recommend using Loctite Threadlocker # LT37420 for this installation. For your vehicle wiring, I recommend the Hopkins Custom Tail Light Wiring Kit for Towed Vehicles # HM56304 which is the easiest kit to install with no splicing required and connects directly to the Honda wiring harness behind the tail lights. You will also need the 48" Long 4-Pole Loop...
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  • Recommended Flat Towing Setup for a 2013 Smart Fortwo Passion Coupe
  • To be able to flat tow your 2013 Smart Fortwo you will need a handful of equipment. The Roadmaster Base Plate Kit # 52285-1 will work really well on your Fortwo. It features removable arms so when you are not towing you will still have that nice, clean look. The next thing we will need to look at is a tow bar, like the Sterling # RM-576 from Roadmaster, and wiring, like the Roadmaster # RM-15267. This will help your brake lights still work on your Fortwo while towing. Another thing you...
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  • Available Lengths of 4-Pole Trailer Wiring Extensions
  • We do offer 4-pole extensions that can be used with the Tow Ready 7-Way to 5-Way/4-Way Trailer Adapter for Vehicles with Lamp-Out Sensors Towing Trailers with LEDs # TR20141. We have 4-pole extensions in many lengths including the 10-foot # HM48235, 4-foot # HM47115 and # HM47114, and 2-foot # HM47004.
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  • The T-One Wiring Harness # 118563 will fit your 2016 Mazda CX-5 but needs to connect to the battery. This wiring harness has a powered converter so it requires a direct connection to the vehicle battery to power the trailer lights. Connecting the harness to the battery protects the vehicle wiring and electrical components from damage. Tapping into a 12 volt outlet of your 2016 Mazda CX-5 could over load the circuit and the vehicle's electrical system would be more vulnerable. We have experienced...
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  • Flat Tow Wiring for a 2008 Jeep Wrangler Unlimited
  • From the little bit that I could tell from the Cool Tech website, it looks as though their wiring harness works the same as the Hopkins Kit that we offer. The big difference is that the Hopkins Kit already has the 4 pole harness installed whereas the Cool Tech version you would have to attach the 4 pole wiring harness so that you can connect your wiring to an adapter for your RV. The Hopkins Custom Tail Light Wiring Kit # HM56200 that you referenced plugs into your Jeep's tail lights...
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  • What Parts are Needed to Flat Tow a 2016 Jeep Wrangler Unlimited
  • There's basically three options to tow a vehicle behiond your motorhome; on a trailer, on a tow dolly, or flat towing with all 4 wheels on the ground. A trailer is probably the easiest to setup but then you have to find a place to put it and manuever it. Tow dollies are often limited by their weight capacity and with the large tires of your 2016 Jeep Wrangler Unlimited I doubt you'll be able to fit on one so I think flat towing is your best option. You need a tow bar, base plate kit...
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  • Installation of Hopkins Towed Vehicles Wiring Kit on a 2017 Jeep Cherokee Overland
  • The Hopkins Wiring Kit for Towed Vehicles # HM56208 is confirmed to fit all models of the 2017 Jeep Cherokee so it will work great on your Overland. The harness plugs in behind the tail lights, like you said. You'll need to remove both tail lights by removing the clips. You'll need to open the tail gate to access this. Then the tail light assemblies will disconnect from the Jeep. Behind them are the plugs for each light which have connectors that will mate with the Hopkins harness. If...
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  • Available 4-Pole and 7-Way Trailer Wiring Extensions
  • We do offer many types of trailer wiring extensions. For 4-pole flat trailer wiring you can use 4-foot extension # HM47115 or 1-foot part # 9653P. For 7-way trailer wiring we have 28-inch extension # TLW6028, 21-inch # TLW6021 or one of the others shown on the linked page.
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  • Installing a 7-Way Trailer Connector and Brake Controller on a 2008 Dodge Ram 1500 Big Horn
  • Luckily we have a kit that will provide you with everything that you will need to set up a 7-way connector at the back of your 2008 Dodge Ram 1500 Big Horn. I would recommend a 7-way connector over a 6-way because it will give you that additional pin for the reverse light circuit and you could always move down to a 6-way with an adapter. I recommend the 7 and 4-way Installation Kit, # ETBC7. The round portion of the 7-way connector in this kit will fit in the factory hole in your bumper,...
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  • Although there isn't a purpose-built option for what you want to do, there are options from a magnetic mount light kit to options that would require some modification of the load extender. For the easiest option that wouldn't involve any alteration or fabrication, I'd recommend a magnetic mount lamp set up like the # RM-2120 offered by Roadmaster. If you'd rather avoid a magnetic option, something like the # EZT20B could be a good choice. The lamps mounting flaps could sit atop the...
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  • Tow Bar Wiring Recommendations to Flat Tow a 2011 GMC Sierra Behind an RV
  • Yes, we do have tow bar wiring harnesses that will activate the lights on your 2011 GMC Sierra and plug into the connector on your RV. If the RV has a 4-Way flat connector you can use diode kit # RM-154. If the RV has a 7-Way trailer connector you can use diode kit # RM-15267. We also have Hopkins harness # HM56101 which plugs in line with the vehicle wiring as shown in the installation video I linked for you. If you go with this harness you will also need extension # HM47115. If the...
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  • It's actually easier than you might think. I recommend using the Tekonsha wiring harness, part # 118677, for towing the trailer with your 2018 Ford Edge Sport because it has a higher maximum amperage than the other options. It plugs in behind the tail lights and then you run a hot lead up to the Edge's battery to power the converter box. Then for the toad wiring use the Hopkins # HM56011 which also plugs in behind the tail lights. Both harnesses use the same connectors and can be...
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  • How to Run Hopkins 4-Pole Extension # HM47115 to Exterior of Vehicle and Hitch Mounting Bracket
  • Usually within the rear cargo area of a vehicle there will be access holes, sometimes filled with a rubber grommet, through which you can route wiring. Since the size of the 4-pole plug # HM47115 may be too large for some of these holes it may be necessary to widen the opening. Take a look under the rear cargo area carpet and trim panels for any such available openings. If you find that you need to enlarge (or create) a hole for the 4-pole be sure to check behind that area to ensure no...
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  • You are correct that aluminum doesn't work well with magnets. The Heavy Duty Magnetic Tow Lights - 20' Wiring Harness with 4-Way Flat Trailer Connector # TL21RK can only be attached to the cab of your truck if you choose to use them or to a steel bumper. I recommend using the Hopkins Custom Tail Light Wiring Kit for Towed Vehicles # HM56009 instead. This harness connects behind your tail lights to your factory harness and then you simply run the connector on the harness to the front...
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  • The simplest way to add supplemental lighting to any towing/hauling set-up is a magnetic light kit. Magnetic lights are inexpensive, fast to install and remove and they require no permanent alterations to your carrier or wiring. You could place a set of lights like # TL21RK on the MH's roof where they will be highly visible. These and most similar lights use a 4-pole harness for connection. We offer a wiring extension if needed, # HM47115. We also offer wireless LED magnetic lights,...
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  • 4-Way Trailer Wiring Extension Recommendation for 2014 Toyota 4Runner
  • If your 2014 Toyota 4Runner already has trailer wiring installed the circuits have already been converted to be combined to match what your trailer will require. The part # HM47115 is a 48 inch (4 foot) long 4-way extension harness. You aren't the first person with a 2014 Toyota 4Runner to be looking for an extension harness either, but this did work well for the previous customer.
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  • Can an Lighted LED Hitch Cover be Converted to a Tailgate Emblem on a Dodge Ram
  • What you have described would work but instead of splicing in more wire you could just use a 4-Way extension such as # HM48145 which is 12 inches or # HM47115 which is 48 inches. The longer one would give you more options for routing the wiring. Keep in mind that the hitch cover was not designed for this purpose so any warranty it has will be void. Another option is to go with a lighted emblem such as # RP86619 which was designed for this purpose. I have linked a video review for you...
    view full answer...

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  • An easy solution would be the part # HM47115. This is a 4-way male to 4-way female style connector which comes with 48 inches of wiring but you could easily cut that down to a shorter amount as needed.
    view full answer...

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    view full answer...

  • Recommended Safety Chains and 4-Pin Tow Wiring Connector Extender for a 2003 Toyota 4Runner
  • Thanks for your purchase from etrailer! I would go with the Hopkins 4-pole loop with cover # HM47115 because it will extend your current 4-way connector 48-inches (4 feet). If that is too long, we currently offer a 12-inch extension # 9653P. If you plan on using these extensions permanently, then I would use some dielectric grease between the connections # 11755. Then use zip ties to hold connections together and electrical tape to wrap it all up to protect it from the elements. A...
    view full answer...

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  • Length of Wiring Harness that Comes with Chevy Bowtie LED Lighted Trailer Hitch Cover # 86062
  • The length of the harness that comes with the Chevy Bowtie LED Lighted Trailer Hitch Cover # 86062 that you referenced is 13-3/4 inches.
    view full answer...

  • Recommended Base Plates and Braking System to Flat Tow A 2016 or 2017 Ford Edge
  • For a 2016 or 2017 Ford Edge, I'd recommend the Base Plate Kit - Removable Arms, # BX2667 for SE and SEL models excluding 2.0L EcoBoost. These base plates are a custom fit for specific vehicles, so depending on what vehicle trim/model you purchase, you will want to make sure you get the right base plates. I recommend the Blue Ox Patriot Radio Frequency Portable Braking System # BRK2016 for your braking needs. This is a proportional braking system that will give you full-power emergency...
    view full answer...


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    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate wiring information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Satisfaction Guarantee
    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Photos by:
Theodore B
Video Edited:
Zack K
Expert Research:
Jameson C
Expert Research:
Adam R
Updated by:
Alexander C

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.


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