Adapter 4-Pole to 5-Pole Trailer Wiring Adapter - Shorter
(207 reviews)
Price: $10.35
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Adapter 4-Pole to 5-Pole Trailer Wiring Adapter - Shorter
Item # 47515
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- Videos (4)
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Hopkins Trailer Wiring - 47515
- Wiring Adapters
- Single-Function Adapter
- 5 Flat
- Plug and Lead
- 4 Flat
- Hopkins
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 Trailer Wiring Adapter Installation - 2020 Toyota Corolla
Hey everyone, Shane here with etrailer.com. Today I have a 2020 Toyota Corolla, and I'm gonna walk you through how to install the Hopkins 4-Pole to 5-Pole adaptor plug. What this is designed to do, is if you have a 4-pole plug on your vehicle, but your trailer has a 5-pole, this allows you to hook into your 4-pole plug on your vehicle, to give you that 5-pole end, if your trailer has a reverse light circuit. The blue wire coming off is gonna have a bullet connector on it, it's gonna come with the extension to connect to our reverse light circuit in the vehicle. This way your trailer, having that reverse light circuit, will allow anybody behind you, if you're backing up, to see what you're doing. What makes this nice is if we're not pulling a trailer with a 5-pole, we can take this adapter, we can throw it in our glove box, or with our other wiring.
When we're ready to use it, simply plug the two ends together. Take your bullet connector end, plug it in, and that allows you to adapt to a 5-pole plug, which has the reverse light circuit in it. As far as the installation process, pretty simple, straightforward. I will say, the end that connects to the reverse wire on the vehicle most likely will need to be extended, so just keep that in mind. You may want to have a little bit of extra wire handy when installing it.
Other than that, that's the only thing you're doing is connecting the 5-pole to the 4-pole on the vehicle, finding your reverse light circuit, and connecting the wire with the quick splice connector that comes in the kit. Now we've gone over some of the features, let's walk through how to get it installed. Now your installation, we're gonna open the trunk. We're gonna go ahead and remove our floor covering. We're gonna come to our threshold, we're gonna have a push pin fastener here and then one on the other side.
Can either put a pry tool in there, plastic trim panel tool, or if you can get your fingers right back here, they usually pop out pretty easy, that'll keep you from scratching anything. We'll pull each one of those out, and then we'll pop this up and out of the way. Pull up, and then we'll set that aside. On each side of the vehicle, this felt liner, you're gonna have two more fasteners. Take a trim panel tool, get in right behind it.
And we're gonna pop each one of those out, to release the lining. If it makes it easier, right down here on the bottom, you have another one. You can go ahead and remove that one as well. Now the reverse lights are actually in our trunk lid. This wire loom right here, we follow it back, to right here, pull off the wire loom, and we need to test the wires to determine which one we're gonna be using. This gray wire, is actually the one that's gonna give us our reverse light signal. What we're gonna do is we're gonna go ahead and test it again, and show you what to look for. So I'll have somebody in the vehicle, put on the brake, put it in reverse, take it out of reverse, put it in reverse. Now we're gonna take our 4- to 5-pole adapter. We're gonna plug it into our 4-pole plug on our vehicle. I kind of brought this line down like this, right around our 4-pole wiring, so we get to that plug. We're gonna take the other end of our blue cable, we're gonna plug them together. That's gonna tell us the length that we need. Go ahead and remove this. Then we can take this end from here, down into the vehicle. We are probably gonna have to extend it, this cable is not gonna be long enough. I just pulled out some extra wiring and threw a butt connector on it. Now what I'll do is I'll take this here, so that if it's not being used, they could pull the 5-pole plug off and then re-install it, and just plug them together when they need it. And that's where I take our quick splice connector, we're gonna slide it over our wire that we tested. We're gonna take our blue wire, and feed it right up in the end like that. I'm gonna simply take a pair of pliers, and press that center metal tab down. Once you get it crimped down, hold that over like that, take all this, take it back from here, and then re-install our panel. Now we can test out our reverse light circuit. I'll have somebody in the vehicle. And you can see we have our test light, to the reverse light circuit coming out of the 5-pole plug, into our ground. Then we'll test out our 4-pole side, brake lights, running lights, left turn, right turn. Once you've tested everything out, you're ready to go. That's gonna do it for look at and installation on the Hopkins 4-pole to 5-pole, flat trailer connector, on our 2020 Toyota Corolla..
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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 (207 Customer Reviews)
by: Danny07/29/2023
Super quick delivery and great CS helping me make decision. Love you guys.
by: Terry L.05/09/2017
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.
by: Monte06/16/2023
A simple way to hook up your 5pin surge brake trailer to a 4 pin connector. My last one had a pin fail after a few years.
by: Alan 10/01/2022
This simple adapter works exactly as intended. The only drawback is if you need to utilize your trailer’s back up lights the process of attaching the extra wire is not easy. Since my trailer doesn’t have back up lights I simply skipped that step. Otherwise it’s truly plug and play.
by: GerryD08/12/2023
This adapter operates as expected. No issues.
by: John E. Matthews02/26/2018
This is the perfect product for when you already have 4-pole trailer wiring but simply want to add a 5th wire for powering the reverse lockout on surge brake trailers or just the backup lights on a truck bed converted into a trailer. It plugged right into the factory connector on my 2011 Ford Ranger. Only ONE splice was needed: the reverse light wire in the taillight. You also have an additional location for wiring in an aftermarket backup camera IF the vehicle's electrical system allows for the extra current. Only complaint is that it didn't come with its own connector cover, but I was able to get that off of etrailer too!
John M.
2/26/2019
Still in use, stays well protected with the connector cover, no problems to date!
by: BSM09/26/2014
This product is very well made. Instructions are a bit brief, but plenty of info online to get it installed. The reverse wire on my car was too small to work with the splice, but I connected them directly w/ a "T". Worked flawlessly with my trailer. The length of the wire on the adapter allows you to make the connection INSIDE the car which will surely extend the life of the connection. Overall great and simple design.
Bsm
9/27/2015
Still works but seems sporadic at times. Will investigate my hydraulic servo for the brakes to ensure they are locking out as required to reverse.
by: Neil 10/29/2022
I have had nothing but extraordinary service from etrailer. Products are excellent, prices fair, and customer/sales service impeccable. Keep up the good work!
by: Don M03/31/2021
This item was bought for another individual and has worked out immensely! Kudos to the folks at eTrailer for having exactly what was needed and getting it to us so quickly. I have and will continue to sing their praises for any of your trailring needs!!!
Don M.
3/31/2022
This adapter is working perfectly after a year. I still highly recommend etrailer for all your towing needs!!!
by: Glenn06/03/2019
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.
Glenn
6/4/2020
Still working great! Thanks again for the perfect solution to our problem.
by: Erick S.03/30/2020
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.
by: Dean A. 05/11/2015
I put this on my 2016 Kia Sorento. Do yourself a favor and watch this instructional video "Hopkins Trailer Wiring Adapter Installation - 2014 GMC Acadia". Another great tip for my application is to buy an extra 20 feet of 16 guage wire. I ran the wire from the tailgate on the inside of the weather stripping and snaked the wire into the utility tray in under the back flip up compartment. When I need to hook up the adapter - I just run it out of the tailgate and hook it up. This keeps the adapter out of the elements when not in use.
by: JP09/02/2017
This adapter is wonderful! It continues to work like a charm, was easy to install, and the price was right. Needed it for hauling my boat trailer that has hydraulic brakes. It has made it through all kinds of Wisconsin and Minnesota weather on my Jeep Wrangler and will last like any other wiring part that is exposed to the elements. I highly recommend this to anyone looking to adapt 4 pole to 5 pole trailer wiring.
by: Randy05/21/2018
This adapter works great. I didn't know what I was going to do. I have a couple of boats and trailers, some of them have the lock up breaks that need to be plugged in to operate. With this little beauty installed I can now plug in all of my towable vehicles without rewiring for each. I looked at every auto and trailer shop around me for resolution but could not find anything. Thanks etrailer, you made my life a little easier.
by: Chris 10/01/2020
Works as advertised. Needed a 5 pole for by boat trailer and this did the job. Had it installed in 30 minutes
Chris
10/4/2021
A year later and no issues.
by: Al S10/06/2014
Great product! I have a Jeep Wrangler Unlimited that only has a four pole flat connector. I have a boat thats needs a five pole because it has surge brakes. This was the perfect solution. I just had the fifth wire connected to the back up light and plugged this five to four pole adapter that was already on the vehicle. Problem solved. It came quickly. I accidently ordered two and I got a call from Etrailer questioning my order. I thanked them and said I only needed one. They saved me the cost of the second adapter when most companys would have just sent them both- and charged me for two.
by: Carl06/20/2020
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.
by: Fred M10/13/2016
Works as promised. Easy to install, easy to use.
Allows me to use my 5-pin Boat Trailer plug with the vehicle's 4-pin set-up.
Adds the extra Reverse Line to turn off trailer brakes when backing up, wouldn't be without it!
by: Michael07/17/2018
been searching for a 4 to 5 flat adapter and yours is perfect. good instructions and follow up was great. I will check with y'all for any future trailer needs.
Michael J.
7/17/2019
Between heart attach and broken foot, i have not gotten installed yet.
by: Duane06/26/2018
Just exactly what I needed to deactivate surge brakes on my boat trailer so I can backup. Easy conversation from a 4 pin to 5 pin connection that is neat and clean. This product is made so you can just unplug and use your 4 pin connector with no problem. Price is great and product is good quality. Shipping was fast and packaged well.
by: Dave S10/19/2014
Product is exactly what I want, but should include a dust cover. Also, wire that leads from plug is too long, and the tail light wire is too short. Where they connect should be closer to the plug, because the way it is you can't really unplug it from underneath the vehicle.
by: Mark L06/20/2012
Put this on an '05 Ford F150. Simple install and took only 5 minutes. Drivers side reverse tail light has two screws on the tailgte side. The hot wire for backup light was brown w/ a red stripe. Unfotunately, my package didn't have the wire splice connector inside as it was suppose to so I used stuff I had at home.
Works like a charm. Very clean looking with no extra wires dangling.
Should get 5 stars but the lack of connector bummed me out and I didn't have time to return it.
Cheers
by: Brandon05/08/2022
I've used this product before with good luck, yet the contacts on the last one I ordered corroded in less than a year, which was disappointing.
by: Jason B.09/29/2014
This product was everything that is says that it is. Suggestion for hatchback owners, though. See if your reverse lights are in the hatchback or on the fender panels before purchasing this product. If they are in the hatchback, as in the 2014 Escape, then you will need to purchase a longer adapter or additional wiring as the routing of the wires to the closest reverse wire is substantial.
by: Sherri07/23/2018
Ordered this to use when I pull my motorcycle tent trailer behind my other vehicles .
The motorcycle is a 5 wire system and my other vehicles are 4 wire. I don't use the blue wire for anything.
25
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See what our Experts say about this Hopkins Trailer Wiring
- How Long is the Wire that Comes with Adapter for Back-up Light Connection?The wire attached to the 4/5-Way measures 19-1/2 inches from the 5-Way to the red single pole connector. The loose piece of wire that runs from the red single pole to the reverse light measures 35 inches. In total, from the 4/5-Way to the reverse light you have 54-1/2 inches of wire.
view full answer... - Wire Gauge Used on Hopkins 47515 4-Pole to 5-Pole Trailer Wiring Harness AdapterThe 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... - Will 4-Way to 5-Way Adapter 47515 Work on 2021 Toyota Corolla HybridThat will depend on what you plan to power with the reverse light for the trailer wiring. Most likely it's just a reverse lockout solenoid which does not draw much and would be no problem for the 4-way to 5-way adapter part # 47515 that you mentioned. If it's several incandescent reverse lights I could maybe see it being an issue. Which if that were the case you could just convert them to LED by replacing the the bulbs.
view full answer... - 4-Way to 5-Way Adapter Recommendation for Activating Reverse Lock Out SolenoidWe 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... - How to Tow a Trailer that has a 5-Way Trailer Connector with 1984 Ford F-250 that has a 4-WaySince your 1984 Ford F-250 already has as 4-way flat trailer connector all you need for the connector is an adapter # 47515. Your existing 4-way will plug into the adapter and the additional blue wire will need to be tapped into the truck's reverse light circuit using the included quick splice wire connector. I've linked a video of the adapter being installed onto a Nissan Murano. The vehicle is completely different but the process is still the same.
view full answer... - Can the Adapter 4-Pole to 5-Pole Trailer Wiring Adapter Be Unplugged While Not In UseYes, the Adapter 4-Pole to 5-Pole Trailer Wiring Adapter part # 47515 can be unplugged and stored inside the vehicle while not in use or when only a 4-way is needed. I would however tape up the female bullet style connector which gets spliced into the reverse light circuit on the vehicle.
view full answer... - Recommended Connector Conversion For 4-Way To 5-Way For A 2002 Ford F-150 Super CrewA good connector for your needs is the Hopkins 4-Pole to 5-Pole Trailer Adapter Item # 47515. It changes your 4-pole flat into a 5-pole flat connector on your 2002 Ford F-150 Super Crew. The blue wire gets spliced into the reverse light wire on your truck which is easily done with quick splice wire connector. After that, you should be good to go.
view full answer... - Trailer Connector Adapter to Power Reverse Lock Out on Trailer with Hydraulic Surge BrakesIt sounds like you have a 4-way trailer connector on your 2015 Ford F-350 and a 5-way connector on the 2010 GMC. The fifth pin on the 5-way connects to the truck's reverse light circuit and tells the trailer's reverse lock out to prevent the brakes from locking up. If the Ford only has a 4-way connector it's missing this feature. You can use an adapter like the Hopkins # 47515 on the Ford and connect the extra wire to its reverse light circuit to power the fifth pin. If the Ford has...
view full answer... - Availability of 5-Way to 4-Way AdapterSounds 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...
- Can a 4-Way to 5-Way Trailer Connector Adapter be Safely Used on a 2013 Ford EdgeThe 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 is...
view full answer... - Can the 5th Wire of the Adapter 4 Pole to 5 Pole Trailer Wiring Adapter Be Cut Off if Not NeededUsually, 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 find...
view full answer... - Is There an Installation Video For Installing 4-Pole to 5-Pole Wiring Adapter On 2022 Lexus RX 350L?While we do not have a installation video for the 4-5 Pole Adapter # 47515 on your 2022 Lexus RX 350 L or similar, we did install the Tow Ready Adapter # 20036 on a 2015 Highlander. As your reverse lights are also located in the rear hatch door the main steps for the installation will be the same. I have linked the install video below for you to reference.
view full answer... - Hopkins Wiring Harness # 43475 and 5-Way Adapter Recommendation 2000 Toyota SiennaYes, there is a way to get a 5-way at the back of your 2000 Toyota Sienna, but you would first need to install the Plug-N-Tow Vehicle Wiring Harness, part # 43475, that you referenced. I attached installation instructions for this product below. The next thing you would need is a Adapter 4 Pole to 5 Pole Trailer Wiring Adapter, part # 47515. This will give you a 5-way at the rear of your vehicle and would also give you the option to decide what you want the fifth pole to be. Some people...
view full answer... - Trailer Wiring Recommendation for 2017 and 2008 Toyota HighlanderFor your 2017 Toyota Highlander the correct 4-way harness for your vehicle since it has the tow package is the part # 56042. To convert to a 5-way you would need # 47515. For your 2008 the same # 56042 is a confirmed fit as well.
view full answer... - How To Convert From A 7-Way To A 5-Pole Connector For Towing A Boat Trailer If your truck has a 7-way connector then you already have a pin for the reverse lights, but it might not currently be hooked up since a lot of people rarely use it and will typically just cap it off. The reverse light function on a typical 7-way is the center pin. You can take the boot off of your 7-way and get into the wiring to see if you have the wire ran or not. If not you'll connect a wire to the center terminal and splice it into the reverse light circuit in either one of your tail...
view full answer...
- How To Convert Trailers 4 Pole Trailer Connector To A 5 PoleI believe I have what you're looking for, the Adapter 4-Pole to 5-Pole Trailer Wiring Adapter # 47515 will plug into your vehicle's existing 4 pole and the blue wire will splice into your trailer's reverse light wire converting your 4 pole to a 5 pole.
view full answer... - How to Wire in an Adapter 4 Pole to 5 Pole Adapter # 47515 For a Reverse LockoutThe wire you are going to be looking for to activate the reverse lockout feature for your surge brakes will be the wire that powers the reverse light bulbs. I would recommend you use a circuit tester # 3808 to determine which wire has power when the reverse lights are illuminated and no voltage when the lights are not activated and then use a quick splice Connector # 804C to tap into this circuit and run wire from the quick splice to the 5-way. I attached a review video for a Adapter 4...
view full answer... - Can a USA 4-Way Trailer Connector be Used with an Australian Trailer ConfigurationThe 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... - Does Blue Wire of Hopkins 4-Way to 5-Way Adapter Need to ConnectedYes, the trailer lights will work if you don't connect the blue wire of the Hopkins # 47515. With that being said there's not much point in getting the adapter if you're not going to connect that wire. The 4-way you already have will connect a trailer's 5-way. you'll just have an extra exposed pin on the trailer side.
view full answer... - Troubleshooting a 4-Way Trailer Connector and Adding a 5-Way on a 2016 Kia SorentoSince 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... - How to Tap into Reverse Light Wire on a 2008 Cadillac SRX to Install 4-Way to 5-Way Adapter 47515Getting to the wiring for the reverse light if the reverse light is in a hatch such as on your 2008 Cadillac SRX can be challenging. But that wiring has to exit the hatch and go into the rest of the vehicle so you should be able to locate the wire at that point. This is normally at the top of the hatch. The wires will all be covered so you will have to cut a slit in the protective cover to access the wires. Then use a circuit tester such as # PTW2993 to test the wires to find the reverse...
view full answer... - Locating Reverse Lamp Circuit in 2012 GMC TerrainThe 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 # PTW2993 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... - Where Does Blue Wire on 4-Pole to 5-Pole Trailer Wiring Adapter Attach On 2013 Acura MDXIt 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 taillight behind the taillight housing and use a circuit tester like part # PTW2993 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... - How to Find the Reverse Light Wire on a 2004 Lexus RX330First, located the taillight wiring behind one of the taillights on the 2004 Lexus RX330. Then, use a circuit tester, like # PTW2993, to probe each of the wires until you find the one that carries a signal when the vehicle is placed in reverse. You will need to have someone sit in the vehicle cab and put it in reverse. It is a good idea to apply the emergency brake, regular brakes, and even chock the wheels to prevent the vehicle from moving while in reverse. Once you have found the...
view full answer...
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Info for this part was:
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Mike L
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Jeffrey L
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Video Edited:
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Test Fit:
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Test Fit:
Shane H
Updated by:
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Updated by:
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Hopkins S.
5/11/2017
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!!