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
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
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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Average Customer Rating: 4.8 out of 5 stars (193 Customer Reviews)
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.
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!!!
Product as advertised. Shipping slightly delayed but that should be expected with the driver shortage. Have always received quality products from Etrailer.
Etrailer is exceptional to work with
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.
Works as advertised. Needed a 5 pole for by boat trailer and this did the job. Had it installed in 30 minutes
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!
Haven't had chance to use it yet, looks good though
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.
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.
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.
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.
easy instal, works great!
This is perfect! Instead of having other (longer) 4 to 5 pole adapters that hang and have to be tucked somewhere, this one simply disconnects and is stowed away until needed. Thank you for the great service!
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.
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.
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.
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.
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.
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!
The product's great the price was great and shipping over all is really great
Arrived very quickly with the basic shipping. Adapeter seems to be made well. Just googled the diagram of the wiring harness to figure out which wire to spice into (white with the green stripe). Install only too about 5 minutes all said and done.
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.
Worked perfectly for our needs. Had a trailer hitch pro install it. Quick and simple for use on our Four Winns trailer.
The wiring harness worked great. It solved the problem of a 5 wire harness in a 4 wire plug.
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