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Miady Heavy Duty 7 Way Plug Inline Trailers Cord with 7 Gang Junction Box - 8 Feet, Trailer Plugs with Weatherproof Junction Box

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$28.99

$ 14 .99 $14.99

In Stock

About this item

  • 【HEAVY DUTY 7 WAY PLUG】 - 7-way copper blade molded into a heavy duty plug, provides a fast and simplified way for wires connection as well as keeping all your trailer wiring in order. Warming tips: Pls read the plug DIAGRAM carefully and refer to the diagram to install this 7 way trailer cord.
  • 【CONSTRUCTION EXCELLENT】 - adopted flameproof ABS junction box and good conductivity copper with solid cord, stronger and rugged, perfect for RVs, trailers, campers, caravans, food vans and other towed vehicles.
  • 【CONVENIENT TRAILER WIRING】 - sturdy junction box with color marked 7-poles that can be easily identified, gives you more convenience for wiring left/right turn light, brake signal lamp, reverse light, tail light, etc.
  • 【EXCELLENT FLEXIBLE CONNECTION】 - 8FT long cord with soft and durable PVC housing that offers you plenty of flexibility to wire it from the front to the rear of your car. BETTER AND MORE PERFECT THAN 4FT OR 6FT.
  • 【OPTIMAL SEALING PERFORMANCE】 - 5 open & 4 close rubber fitted grommets for option based on your wiring needs, making the whole junction box waterproof, dustproof and corrosion resistant. [WHAT YOU GET]: 18 months Miady WARRANTY and lifetime best customer service, 1 x 7-Way Trailer Plug with Junction Box, 5x Open Grommets, 4x Close Grommets.



Product Description

7 way trailer cord

Miady trailer cord is also CETL and ETL US listed, which means that this product has been tested and meets all the safety standards for use in Canada and United States, everything you need to head down the road safely.

trailer wire harness kit consists of 7-way plug cord with 7-poles junction box, specially colored functional marks for simpler wiring of turn light, brake signal lamp, reverse light and other wires, perfect for your RV, trailers, camper, caravans, food vans and other towed vehicles.

trailer wiring harness kit

HEAVY DUTY PLUG

Heavy-duty construction, molded into a 7-way plug, perfect connection to any standard 7-way trailer receptacle.

7 pin trailer plug

7 COLOR CODED WIRES

  • White (ground): 10 gauge
  • Black (12V power): 10 gauge
  • Yellow (reverse/auxiliary): 14 gauge
  • Red (left turn and stop): 14 gauge
  • Green (tail and running lights): 14 gauge
  • Brown (right turn and stop): 14 gauge
  • Blue (brake): 12 gauge

trailer wire junction box

STRONG WEATHERPROOF

With 5 open & 4 close rubber fitted grommets, making the junction box water-resistant, dust-tight and corrosion resistant.

7 way trailer cord

HIGH-QUAILTY MATERIAL

Pure copper and soft PVC housing with reasonable watertightness on the cable side. Easy wiring with junction box.

 LONG ENOUGH

LONG ENOUGH

Cord Length: 8 FT long

Box Size: 6.5 * 3.1 * 2.3 Inch ( L * W * H)

when you need for trailers with electric brakes, interior lights, reversing indicators and other power needs, the 8ft 7 way trailer cord gives the extra length for you to allow for tight turns.

6

PACKAGE INCLUDE

  • 1 x 7-Way Trailer Plug with Junction Box
  • 5 x Open Grommets
  • 4 x Close Grommets
  • 1 x Diagram
  • Miady After-sales service
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Ed
Reviewed in the United States on March 3, 2025
Easy to use. Easily run wires into the junction box cleanly and professionally.
Daniel L.
Reviewed in the United States on September 16, 2024
Trailer connector works great. Needed to replace the one on my camper and bought this and it easy to figure out where each wire goes to because it had the same color wires as the old connector.
terry ayers
Reviewed in the United States on July 23, 2024
Easy to install, nice setup for a trailer.
Skitter
Reviewed in the United States on May 1, 2024
Received the harness and junction box timely and in good shape. An initial inspection... the harness/plug are beefy with good insulation, contacts are solid. The junction box mounting tabs worry me... plastic... I'd like to see a brass insert but we'll see how it holds up. I'm using this harness/box for a utility trailer, not an RV (which is the wiring configuration of this device) so the wire colors/pin colors don't match my vehicle/trailer. I appreciate the other reviewers who pointed this out and posted diagrams to aid other buyers.I’m wiring for a GM Tahoe/Yukon/Escalade 7-pin socket. In my configuration, I've added side-marker lights, reverse lights, a switched tongue-box light, and maintained the 4pin connector for my trailer so family can borrow it (their vehicles only have a 4pin connector). I diagrammed the wiring before I performed the install... maybe it'll help another buyer.Notes on my diagram:• Car Side socket is for 2007-2014 Tahoe/Yukon/Escalade• Junction box inner circles are the pin/wire colors of this device as shipped• The outer circles are the corresponding colors from the car side socketI've completed my install conforming to the diagram I've attached... all lights function properly.
Robert Craig
Reviewed in the United States on April 7, 2024
Used on my rv and worked excellent! Liked the color coding on the wires in the box for easy hook up! Would buy again and a good price
Emil Lozada
Reviewed in Canada on June 9, 2023
The wiring color and location are most wrong in the trailer connector. Unfortunately my window of return has expired, don't buy this product its a waste of money.
Stephan Noel
Reviewed in Canada on May 23, 2023
Per the tittle, it works considering the price you pay. The wiring colors are off from how many trailers are wired up at the factory. That wasn't a huge deal once I figured out the right colors. What is annoying though is the screws that secure the wires to the box are very brittle. I broke one of them while tightening everything down which leaves me wondering how it's going to work in the long term.
Grant
Reviewed in the United States on September 14, 2022
Yes, there are two wiring standards for 7 wire flat spade plugs. One is for RV and the other is NOT. This is the version you are probably not expecting. I attached a picture of the two diagrams for your reference and it is wired the way the "RV" one is wired. However, all the RV's I have every wired/rewired/rebuilt are ALL wired to the "Traditional" standard of wire color scheme. The positions on the plugs are the same but the colors are VERY MUCH NOT. If you wire this in without paying close attention to your color coding, you will spend another hour moving stuff around in the box to correct it. Ask me how I know - never assume.With that said, the quality is good. They send pass through grommets for all the holes which many don't so that is a plus. Once I figured out the color issue, it has been just fine so I gave it 5 stars. I can't build a set like this for the price really so for the 4 or 5 sets a year I install for others... it is worth it.
Big Bob
Reviewed in the United States on May 21, 2022
So first thing I did was plug it into the truck and test with a 12v test light. First thing I noticed was the “standard” color codes that correspond to each circuit, wasn’t correct. Meaning, ground, left/right, stop, trailer brakes, and trailer lights were different. While I could have dealt with it, I chose not to, for ease of identification down the road. For those unfamiliar with trailer lights, yellow is driver’s side blinkers/ stop and green is passenger side, while brown is marker lights for both left and right. The new plug did not follow this pattern so a chose to cut off the factory plug and install a new plug. Like I said, my decision, not completely necessary.The quality of the wire seems good, the junction box seems sturdy and also includes a gasket for sealing out moisture. Various openings are available on the box for wire entry( 3 openings) and plugs to seal up the ones you don’t need.Keep in mind these are made in China. While it worked out for me, it’s a daily driven trailer and only some time and miles will prove it’s worth.
clifman
Reviewed in Canada on September 7, 2021
tres bon ^produit mais les couleurs sont melanger du standart a part ca bon produit
Steve J.
Reviewed in the United States on June 11, 2020
I bought this for my utility trailer. Had 4 way wiring with a 7 way adapter to fit my Range Rover plug. I wanted it to avoid having to use the adapter and make use of the reverse light connection as I added trailer reverse lights.Installation was fairly easy. I like the wiring box to avoid splices. The constant 12v connection doesn’t work but I believe that’s my rover’s issue. Wired my electric jack to the lights. The weird thing is that after upgrading, my turn signals hyper flashed. Maybe from the deletion of the adapter. Load resistors fixed the problem.The 8’ cable is very sturdy. Should become a little more flexible with use.The wiring box could use a rubber washer for each screw that attaches the lid, but I’ll get those.All in all, solid, sturdy, and worth the money.
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