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Adapter 4-Pole to 5-Pole Trailer Wiring Adapter - Shorter

Adapter 4-Pole to 5-Pole Trailer Wiring Adapter - Shorter

Item # 47515
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Hopkins Wiring Adapters - 47515
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Lowest Prices for the best wiring from Hopkins. Adapter 4-Pole to 5-Pole Trailer Wiring Adapter - Shorter part number 47515 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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Hopkins Wiring - 47515

  • Wiring Adapters
  • Single-Function Adapter
  • 5 Flat
  • Plug and Lead
  • Hopkins
  • 4 Flat


Trailer wiring adapter that changes the 4-pole flat on your vehicle into a 5-pole flat.

The blue wire gets spliced into the reverse light wire on the vehicle which is easily done with the included quick splice wire connector.

Hopkins # 47515, TAP # 37515



47515 Adapter 4-Pole to 5-Pole Trailer Wiring Adapter - Shorter




California residents: click here


Video of Adapter 4-Pole to 5-Pole Trailer Wiring Adapter - Shorter

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




Video Transcript for Hopkins Wiring - Wiring Adapters - 47515 Review

Today, we'll be reviewing part number 47515. This is the Hopkins Adapter 4-Pole to 5-Pole Trailer Wiring Adapter. The trailer wiring adapter is going to change the 4-pole flat on your vehicle into a 5-pole flat. You can see here that you have the 4-pole connections you plug into the 4-way flat on your vehicle. On this side, it's going to convert it over to a 5-way connection. Now, the blue wire is the wire that's going to get spliced into the reverse light wire on the vehicle, which is easily done with the included quick splice wire connectors. That is included with this part number.

This is going to be great for use with marine trailers equipped with surge breaks to eliminate rewiring your vehicle or trailer. When installing this, you want to make sure to use a tester to locate the backup wire at the rear of your tow vehicle. You're then going to splice the blue wire onto the backup wire of the tow vehicle using the supplied splice connector. Once you have that done and secure, then you can simply just plug in the vehicle end and the trailer end and then you would be all set to go. The blue wire, you can see here that it has a little inaudible 00:01:06 connector on it that connects the two pieces together. When fully connected, that's going to give us a total length of around 56 inches. That's going to do it for today's review of part number 47515. This is the Hopkins Adapter 4-Pole to 5-Pole Trailer Wiring Adapter.

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Customer Reviews

Adapter 4-Pole to 5-Pole Trailer Wiring Adapter - Shorter - 47515

Average Customer Rating:  4.8 out of 5 stars   (165 Customer Reviews)


- 47515
by:

I had a 2 inch trailer hitch and 4 pole flat wire harness professionally installed on my 2001 Dodge Ram Pickup. When I bought my boat the trailer was wired for a 5 pole flat harness. Took my truck back to the installer to have the harness exchanged and was told that there was no 5 pole flat harness made for my 2001 truck. I asked about splicing a 5 pole flat harness to the 4 pole flat harness and was told by the installer that they don't do splicing and because the 4 pole harness was already installed I couldn't get a refund. So the search was on to fix this problem. Stumbled upon the etrailer E-commerce site and found what I was looking for. A 4 pole flat to 5 pole flat adapter. The price was right, the service was 5 Star and I received the adapter in 4 days which was perfect. I had time to install it, and get my boat on the water that weekend. Thanks George J. I will be using etrailer for all my trailer needs. 378105


Comments
Hello Terry, Thank you for purchasing our Wiring Adapter!! Hopkins appreciates your review and picture and looks forward to doing more business with you in the future. Enjoy your time on the water!!
Hopkins C from - 05/11/2017

23748

- 47515
by:

Easy to install, just have a few tie wraps handy. 881858



- 47515
by:

872640



- 47515
by: 08/29/2020

Easy to install works perfect 871196



- 47515
by:

Good Quality. Works great! 870861



- 47515
by:

This company does a great job with product selection, tech information and delivery. Thanks! 863619



- 47515
by:

THE 4 FLAT TO 5 FLAT WORKED AS ADVERTISED IT SAVED HAVING TO REWIRE MY TRUCK 848545



- 47515
by:

Excellent item. Priced right. Exactly what I ordered. Very helpful seller. Only negative was shipping time took longer than expected but I was in a hurry. I would buy again. Thanks 848066



- 47515
by:

Fits good, professional looking installation. I did it myself in the driveway with some help from my wife and a roller jack and some jack stands. Only thing I had to do that I don't think was mentioned in the video was to unhook the tailpipe from the bracket & lower the tailpipe as far as it would go to push the hitch in place to line up with the holes. 818350



- 47515
by:

Blown away by the communication and fast shipment from etrailer The video instructions made the installation simple. 811407



- 47515
by:

I purchased this for my 2019 Subaru Outback, but I have not installed it yet because I have not had to pull the trailer that requires that adapter yet. However I did purchase one of these for my Toyota Highlander several years ago, and it worked perfectly. It takes the signal for the reverse light and uses it to deactivate the trailer brakes so that you can back up without physically going out to the trailer and locking out the brakes. 772440



- 47515
by:

A simple but super-effective solution. It was easy to splice into the backup light, and the main connector fits over my existing 4-pole, to make a 5-pole connection that works. 764576



- 47515
by:

1. Easy to maneuver through the pages to find what you need 2. Good description of product 3. Easy ordering process 4. Quick delivery 5. They kept me informed of every step of my order to delivery. Thanks 714224



- 47515
by:

The wiring harness worked great. It solved the problem of a 5 wire harness in a 4 wire plug. 711467



- 47515
by:

TWO DAY SERVICE AND A GREAT PRICE. 706192



- 47515
by:

Excellent product high-quality,will definitely do business again. Very fast shipping. 668398



- 47515
by:

Easy install. 658487



- 47515
by:

etrailer was recommended by the manufacturer and they were right on! Great customer service, quick shipment, received when promised, etc. Wish all online companies where this good. Thank you etrailer for having the solution and getting the part to me quickly. I will be doing business with you again. Thanks again 657461



- 47515
by:

product worked and was well made. 656372



- 47515
by:

all parts received as described 654927



- 47515
by:

The five-to-four harness adapter was exactly what we needed to be able to tow our tent trailer with our car rather than our motorcycle. And it arrived so quickly! Thanks for helping us solve the problem so easily and economically. 652835


Comments
Still working great! Thanks again for the perfect solution to our problem.
Glenn - 06/04/2020

78690

- 47515
by:

Just what I needed 649721



- 47515
by:

Did great simple to install 649410



- 47515
by:

Good product and EXCELLANT service! 647890



- 47515
by:

Couldn't find it anywhere else. 591043


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Ask the Experts about this Hopkins Wiring

  • Installation of 4-Way to 5-Way Adapter on 2017 Hyundai Santa Fe
    The Adapter 4-Pole to 5-Pole Trailer Wiring Adapter - Shorter # 47515 will connect to your current 4-way wiring harness and you will run the blue wire behind your tail light to connect to the reverse light power wire. The reverse light bulb socket will be fairly obvious as it leads to the clear lens. The Quick-Splice connector makes this easy. I've attached a video to assist.
    view full answer...
  • Recommended Converter To Convert Combined Wiring On Vehicle For Trailer With Separate Wiring
    We do have a converter that will let you convert the combined brake and turn signals from your Honda without splicing into the vehicle wiring. The wiring would be done on your trailer. I recommend part # 118158. You would cut the harness on your trailer and wire it to the 118158 converter as shown in the attached photo. Since it is not waterproof, you will need to use a junction box on the trailer like part # 38656. You would need to use a 4-way trailer-side connector like part...
    view full answer...
  • Finding Reverse Light Circuit When Adding 4 Pole to 5 Pole Trailer Wiring Adapter
    The additional blue wire on the 4 Pole to 5 Pole Trailer Wiring Adapter # 47515 is to connect to the reverse tailight wiring feed on your vechicle. You can find the reverse feed toward the back of the vehicle, not on the 4-Pole Flat Trailer Connector Item # 118270. A 4-way connector does't use the reverse light circuit and that's why you need a 5-way for your trailer. To find the reverse taillight feed you will have to open the rear tailgate, you are going to get your power source...
    view full answer...
  • Adding 5-Way Flat Trailer Connector to 2010 Acura MDX with Existing 4-Way Flat
    I have a solution for you to tow your boat trailer that has a 5-Way flat connector, however there is not a custom wiring harness to plug into your 2010 Acura MDX that comes with a 5-Way plug. In order to convert your vehicle's wiring from a 4-Way flat to a 5-Way flat, you will want to use an adapter such as the Hopkins Adapter 4-Pole to 5-Pole Trailer Wiring Adapter # 47515. This adapter will plug into your existing 4-Way and includes an additional wire that will be spliced into your...
    view full answer...
  • 4 to 5-Way Adapter Recommendation for a 2014 Jeep Wrangler towing a Boat Trailer With Surge Brakes
    What you need is the Adapter 4 Pole to 5 Pole Trailer Wiring Adapter # 47515. This will plug into your existing 4-way on your 2014 Jeep, and then the blue wire will get ran to the reverse light circuit of your vehicle taillights and then tap into that circuit with the included quick-splice connector. I attached a video that shows a typical installation for this product for you to check out to the right.
    view full answer...
  • Adding a 5-Way Trailer Connector to Hook Up to Boat Trailer
    You're correct that you need a 4-way to 5-way adapter, like part # 47515, to have the proper connection on your 2019 Land Rover Range Rover Sport to your boat trailer. The adapter plugs into the 4-way you've already installed and has the additional wire that needs to be spliced into the Rover's reverse light circuit using the included quick splice connector. I've linked a video of the install on a different vehicle just so you have the basic idea. The tricky part is finidng the reverse...
    view full answer...
  • Installing 4-Pole to 5-Pole Trailer Wiring Adapter on 2017 Ford Escape
    The blue wire on the Hopkins 4-Pole to 5-Pole Adapter # 47515 referenced in your question will be spliced into the reverse light wire on your 2017 Ford Escape. To locate the reverse light wire on your vehicle, I recommend using a circuit tester like # PTW2993. The reverse light wire will typically be located at the back of the tail light assemblies. Have a buddy sit in the driver's seat, set the emergency brake and hold the brake pedal while the vehicle is in reverse. You will use the...
    view full answer...
  • Trailer Wiring for a Motorcycle Towing a Motorcycle Trailer
    Normally, the 5 wire flat connector will accept a 4 wire flat connector and work properly. The extra circuit on the 5 wire connector is normally wired to power a reverse lockout or electric trailer brakes not the brake lights. If your motorcycle has the brake light circuit connected to the extra circuit you will need to do some re wiring or install a converter, item # 119178KIT, on the motorcycle. Your trailer should be wired as follows. White wire = ground, brown = tail light, yellow...
    view full answer...
  • Installation of Reverse Wire Addition to 4-Way for 5-Way Trailer With Hydraulic Brakes
    For your Adapter 4-Pole to 5-Pole Trailer Wiring Adapter - Shorter # 47515 you will connect the blue wire to your reverse light power at the tail light. Use a circuit tester like # PTW2993 to find the power wire that only comes on when the vehicle is shifted in reverse. Don't trust wire color, just follow functions. Test all your 4-way functions as well to ensure everything is working correctly. If not, use the circuit tester to trace the wires. On the trailer side, that pin location...
    view full answer...
  • Adding Trailer Wiring to a Motorcycle to Tow a Trailer
    Motorcycles have separate brake lights and turn signals. Most trailers, unless designed for use with a motorcycle, have combined turn signals and brake lights. You will need to convert the separate signals on the bike to match what the trailer requires. To do this you will need a converter like # 119178. On this harness you will connect the white to ground, green to the left turn signal, yellow to the right turn signal, and red to the brake lights. Brown is the running lights. If it...
    view full answer...
  • Can a USA 4-Way Trailer Connector be Used with an Australian Trailer Configuration
    The Australian 7-pole is like the European 7-pole in that it has separate turn signals and brake lights (and a few other functions not used in the states). A US 4-Way and trailer will have the turn signals combined with the brake lights on each side of the trailer. So you would have a ground (earth), running lights, left turn and brake lights, right turn and brake lights. In order to separate out the turn signals from the brake lights you would need a converter, # 118158. You would wire...
    view full answer...
  • Where to Find the Reverse Light Wire at the Back of a 2013 Ford Escape
    On the 2013 Ford Escape, testing the wires to find the right one is the only way to know for sure if you have the correct wire since going by color is not always reliable. Use a circuit tester such as # 40376 if you do not already have one to test and find the correct wire. It looks like the reverse light wiring will go through the rear hatch. If you were to open the hatch you may be able to find the harness at the top that goes from the hatch into the vehicle. That is likely the easiest...
    view full answer...
  • Locating the Reverse Light Wire on a 2013 Lexus RX350 for a 4 to 5-Way Adapter
    The easiest place to locate a reverse light wire on any vehicle is directly behind the reverse light itself. If that is not easily accessible then there will be a wiring harness that leads to the tail lights that may also contain the reverse light wire. You will need a circuit tester like # PTW2979 if you do not have one. Test the wires in the harness leading to the tail lights to determine if any of them are the reverse light and tap in there. Another option is to find the reverse light...
    view full answer...
  • Availability of 5-Way to 4-Way Adapter
    Sounds like you may be looking for the part # 47515 as this is basically exactly what you described. I attached an install video for this for you to check out as well.
    view full answer...
  • Adding a 7-Way and Brake Controller to a 2012 GMC Terrain and Old Trailer
    Trailers have combined turn signals and brake lights on the same circuit so you wouldn't tap into one of those otherwise the brakes would turn on with the blinker like you said. You are going to have to add a 7-Way connector to the 2012 GMC Terrain and to the trailer. And you will also need a brake controller. Since your Terrain already has a 4-Way you will just need # ETBC7 to add the 7-Way. I have included some links that show and explain the ETBC7 installation as well as the brake...
    view full answer...
  • Wiring The Blue wire on 4-pole to 5-pole Adapter
    The blue wire on the Trailer Wiring Adapter 4-pole to 5-pole is normally used for boat trailer connections where the trailer surge brakes need to be locked out. The blue wire is connected to the vehicles backup light circuit so that when the vehicle is shifted into reverse the surge brake coupler will not activate the trailer brakes when backing up. This adapter, blue wire included, is meant to be connected at all times when towing the trailer. The blue wire could be connected to another...
    view full answer...
  • Can the 5th Wire of the Adapter 4 Pole to 5 Pole Trailer Wiring Adapter Be Cut Off if Not Needed
    Usually, on a boat trailer with a 5-Way trailer connector, the 5th wire goes to an electric reverse lock out on a surge coupler. This is so when you put the vehicle in reverse to back up, it will not allow the trailer brakes to engage so the trailer can move. If you do not need the blue wire on the Adapter 4 Pole to 5 Pole Trailer Wiring Adapter, # 47515, you can just tape it up and and stow it out of the way. I would not cut it off because you may need it in the future. If you do...
    view full answer...
  • 4-Way to 5-Way Adapter Recommendation for Activating Reverse Lock Out Solenoid
    We have just what you would need. To convert your 4-way to a 5-way so that you can run the reverse light circuit all you would need is the # 47515. This will tap into the reverse light circuit of the vehicle and give you the 5th circuit needed to activate your trailer's reverse lockout.
    view full answer...
  • Installation of Hopkins 4-Pole/5-Pole Trailer Adapter 47515 on 2016 Jeep Wrangler Unlimited Sport
    Auto makers don't always use the same wire colors in vehicle production so color alone is not a reliable method to determine what signal a specific wire is carrying. The surest way to know is to use a circuit tester like # 40376 to test the wires at the taillight while a competent helper carefully shifts the vehicle into reverse (with the parking brake on for safety). This will give you 100-percent assurance that you have found the correct wire to connect to the blue wire on the Hopkins...
    view full answer...
  • How to Install the 4 to 5-Way Trailer Connector in a 2008 Honda Pilot
    You have a couple options for locating the reverse light circuit for the 4 to 5-Way adapter # 47515 on your 2008 Honda Pilot. The first, which would require some time and probably trim removal, would be to inspect the door area and see if you can locate where the factory harness runs out of the door and toward the front of the vehicle. If the wiring runs out in a way that you will not have enough space to tap into it, you would need to remove trim pieces or even the headliner to reach it. The...
    view full answer...
  • Where Does Blue Wire on 4-Pole to 5-Pole Trailer Wiring Adapter Attach On 2013 Acura MDX
    It is not recommended to connect the blue wire from the 4-Pole to 5-Pole Trailer Wiring Adapter, part # 47515 to any wiring other than the wire for your reverse lights on your 2013 Acura MDX. You will need to locate the wiring for the tail light behind the tail light housing and use a circuit tester like part # 40376 to find the wire that only has power when the vehicle is placed in reverse. You can use the included quick splice connector to attach the blue wire to and then simply plug...
    view full answer...
  • Tapping Into the Reverse Light Circuit on a 2010 Hyundai Santa Fe to Install a 4 to 5-Way Adpater
    Vehicles that have the reverse lights in the hatch can make tapping into the reverse light a little more difficult than most people would like. What I recommend doing is checking for the wiring harness leading to the lights UNDER the vehicle. Then use a circuit tester like # PTW2979 if needed to test the wires to find if the reverse light circuit is there. If you cannot find it then there is another thing you can do. Use the vehicle owners manual and/or the legend on the power distribution...
    view full answer...
  • Can a 4-Way to 5-Way Trailer Connector Adapter be Safely Used on a 2013 Ford Edge
    The 4-Way to 5-Way adapter, # 47515, will work well on a 2013 Ford Edge and will not short out the vehicle electrical system if installed correctly. Installation is straight forward. The 4-Way on the vehicle plugs into the adapter. The blue wire then will connect to a reverse light wire on the vehicle using the included quick splice connector. This adapter is not circuit protected so if there are shorts on the trailer they could back feed to the vehicle. Make sure the trailer wiring...
    view full answer...
  • Intended Application for Hopkins 4-Pole to 5-Pole Adapter 47515
    In standard U.S. 4-pole wiring the brake LIGHT signal is combined with the turn signals for both sides of the trailer. This is shown in the linked photo of a 4-pole connector. The actual braking power signal in a trailer wiring harness (that engages the electric brakes) is never combined with any other function. The Hopkins 4-Pole to 5-Pole adapter part # 47515 is intended to allow adding a circuit that carries the vehicle reverse light signal which will operate an electric reverse lockout...
    view full answer...
  • Locating Reverse Lamp Circuit in 2012 GMC Terrain
    The Terrain has the reverse lamps in the liftgate, so you'll need to locate the wiring harness that feeds the liftgate. The wiring harness can usually be found behind one of the trim pieces that cover the inside corners to either side of the liftgate. Have a friend place the transmission in reverse, as you use a circuit tester like part # 40376 and test the wires in the harness until you find a wire that only shows current when the transmission is placed into reverse.
    view full answer...
  • 2012 Honda Goldwing Motorcycle 5-Way Trailer Wiring Recommendation
    The 5-way harness on your 2012 Honda Goldwing is a wiring setup that has separate turn signals from the stop lights. What that means is there is a separate brake light bulb from the turn signal bulb on either side of the trailer. The fifth wire on your bike's trailer connector is not a reverse light circuit so it will be needed. Typical trailer wiring has the stop and turn signals combined so only 4 circuits are needed. You can wire up your trailer the same way and everything would be...
    view full answer...
  • Wire Gauge Used on Hopkins 47515 4-Pole to 5-Pole Trailer Wiring Harness Adapter
    The blue wire of the Hopkins # 47515 4 to 5 pole trailer wiring harness adapter is 16 gauge. To view a typical installation, click the linked video.
    view full answer...
  • Troubleshooting a 4-Way Trailer Connector and Adding a 5-Way on a 2016 Kia Sorento
    Since everything is working on the new 4-way except the running lights are weak start with checking the ground connection. Make sure it's on a clean bare metal surface free of paint and debris. The running lights of a trailer usually draw more power than the brake and turn signals so it may be the ground just isn't strong enough for the higher draw. The next thing to check is the connector where the new harness plugs into the vehicle wiring. Make sure all of the pins are in good shape...
    view full answer...
  • Troubleshooting Reverse Lockout Solenoid of Surge Brake Trailer Not Allowing Trailer to Back Up
    The backup light circuit of a vehicle would provide enough amperage to activate the lockout solenoid on a trailer with surge brakes. I'd make sure that the extra blue wire of your # 47515 does have voltage when the reverse lights are on to verify it's working and then also verify that the solenoid is grounding properly. Most likely it's the ground on the solenoid not sufficient to activate. But if so let me know what brand actuator you have as it might be time for a new lock out solenoid...
    view full answer...

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Info for this part was:

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