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M. Masters
> 3 dayHaving already setup my vehicle with the 4 flat trailer wiring I decided to upgrade my plug setup for the 7 round plug also in preparation for buying a trailer with brakes. After having purchased this adapter I had assumed that I could simply plug in my 4 flat plug into the connector here and all the basic functionality of brake lights, running lights, and turn signals would work with just the reverse lights, brakes, and power wire not working. Unfortunately after purchasing the trailer I discovered it wasnt quite so simple... After doing some more digging around I noticed that while my 4 flat had a ground, for some reason the multi-tow adapter had a separate ground that had to be connected separately. I was able to rig it up on the fly to get the trailer home, but keep that in mind if wanting to use this as a straight adapter for getting a trailer home on short notice. Overall this product is okay for the money. Only time will tell how it will hold up.
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Dean, Monument CO
> 3 dayI love this adapter. Very affordable, and has many applications. I use the 7 pin connector on all my vehicles and trailers. But on the family farm almost every think still uses the 6 round, including the vehicles. Nowhere have I found a 5 pin round (vehicle end) to 7 pin blade (trailer). So I buy these and cut off the 4 pin flat (on the wire harness) and connect the wire harness to a 6 pin round vehicle connector. So now I have a 6 round to 7 blade and a bonus 4 pin flat adapter to plug into the farm vehicles so they can pull my trailers. I find that you can buy 7 blade to 4 flat, or 5 round, or 6 round adapter. But no one makes a 5 round to 7 bladed adapter. Surely Im not the one with this need..
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Darrell E.
> 3 dayFord couldn’t get a factory controller to work with my 2017 Expedition with tow prep package. I bought this and Hopkins brake controller with quick connect plug to my factory brake controller wire. Had everything installed and working out n 15 minutes. Plug the 4 way flat to 4 way flat tap ground to frame and splice brake wire together and 12v constant if you have to charge camper battery. Mount adapter. DONE
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Ryan L. Schick
> 3 dayI too fell victim to the suggested mounting bracket. I didnt read any of the reviews since I knew I wanted Hopkins products for my tow vehicle. This kit already includes the bracket with it. I too wont be returning the >$5 bracket since shipping alone will be about that much, but that is not Hoppys fault. This is a slam dunk for trailer hookup. No more need to carry the 7 pole to 4 flat adapter (greasy item rolling around in glove box). The holes in the included mounting bracket matched up perfectly to the pre-drilled holes in the Reese hitch I purchased at the same time. This along with the Hopkins/Hoppy t-connector trailer wiring kit just reached to allow me to make all of my connections without any extra splicing. Pack the 4-flat connectors with contact grease and zip-tie the two connectors together. Wiring doesnt get any easier.
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b4real
> 3 dayThis item when I installed it looks and works great. We have a camper with a round 7 pin insert and waverunners on a trail with a flat 4 insert so this suits both well! The hardware that came with made the install a breeze and my wife was even impressed how nice it looks. Two words of warning though for us novices: 1) you have to ground the white wire even if you are hooking it up to an existing 4 flat connector. I drilled a small hole into my tow hitch underneath my car. 2) also when shipped the middle prong of the 7 pin adaptor is very tight- you need to separate the two clips to get your round 7 pin to fit correctly.
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Jesse Nietzer
> 3 dayThis 7-way/4-way trailer adapter is exactly what I needed for my DIY after-market hitch install. It easily mounted on the bracket on my hitch and the wires are plenty long enough to reach existing wires and easily hide around the frame. The 7-way connector firmly holds my wire in place and makes a great connection to the trailer. I have not had any problems with the connection to the trailer as I have with older 4-way wire connectors. I highly recommend this product to either add a 7-way plug or replace a 7-way plug that still allows a 4-flat connection for non-braked trailers.
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J Pike
> 3 dayIf you need a 7 wire and 4 wire all in one, this will do the job. Been working fine in saltwater environment.
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Eric Gonzales
> 3 dayInstalled very easily onto my existing 4-pole connector on my 1997 GMC pickup. Found a good lip under the bumper to bolt my bracket to, and made my own ground on the frame for the ground wire. Havent actually hooked it up yet, but a multi-meter shows 12V power in the correct spots when various vehicle functions occur: blinker, tails, brakes, etc.
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Brian
> 3 dayI used this to add a 7 way RV to style plug on my tractor, replacing the factory option 7 pin Ag plug. I like that the back of the connector is potted and the wires were a good length.
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Nick L
> 3 dayIt was what it was described to be