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

4.7 4.7 out of 5 stars 1,116 ratings
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Brand Miady
Material Copper
Voltage 110 Volts

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

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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Package Dimensions ‏ : ‎ 11.22 x 9.07 x 2.86 inches; 7.2 ounces
  • Item model number ‏ : ‎ 8542046931
  • Date First Available ‏ : ‎ December 10, 2018
  • Manufacturer ‏ : ‎ Miady
  • ASIN ‏ : ‎ B07L8Z88XK
  • Customer Reviews:
    4.7 4.7 out of 5 stars 1,116 ratings

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

7 pin trailer plug

trailer wire junction box

HEAVY DUTY PLUG

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

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

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

 LONG ENOUGH

6

HIGH-QUAILTY MATERIAL

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

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.

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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Customer reviews

4.7 out of 5 stars
4.7 out of 5
1,116 global ratings

Customers say

Customers like the quality, ease of installation, and value of the electronic wire. For example, they mention it's well built, easy to wire, and good value for money. That said, opinions are mixed on ease of wiring.

AI-generated from the text of customer reviews

65 customers mention65 positive0 negative

Customers are satisfied with the quality of the electronic wire. They mention that it is well built, the quality is good, and the cord and box are sturdy. Overall, most are happy with their purchase and recommend it to others.

"...This made hooking up the wires a breeze. Great quality!" Read more

"...Ask me how I know - never assume.With that said, the quality is good...." Read more

"...Load resistors fixed the problem.The 8’ cable is very sturdy. Should become a little more flexible with use...." Read more

"This in of itself works great.Got it installed and routed with no problem...." Read more

32 customers mention32 positive0 negative

Customers find the installation of the electronic wire to be easy. They mention that the pre-wired and marked terminals make installation simple and idiot proof. The assembly is solid and everything goes together smoothly and seamlessly. Customers also appreciate the great instructions and easy-to-access screw type connections. Overall, customers say the product is a huge time saver.

"...Installation was fairly easy. I like the wiring box to avoid splices...." Read more

"...The assembly was solid and everything went together smoothly and seamlessly. The plug fit snugly into my Ford F-350 and everything worked as hoped...." Read more

"The plug and wires are ready to go. Easy way to get things done quick" Read more

"Pre-wired and marked terminal made installation easy. Almost idiot proof...." Read more

23 customers mention20 positive3 negative

Customers like the value of the electronic wire. They say it is a good value and has decent quality for the price.

"...All in all, solid, sturdy, and worth the money." Read more

"This trailer cable and junction block is well worth the money. Good quality, the box seems to seal well...." Read more

"Very good. Worth the money" Read more

"Easy installation follow up instructions, works as predicted. Good price. I recommend." Read more

17 customers mention12 positive5 negative

Customers like the fit of the electronic wire. For example, they mention the length is about perfect, the cord is plenty long enough to reach their receptacle, and the molded plug fits good. Some say it's a great replacement 7-Pin cable and junction box.

"...The plug fit snugly into my Ford F-350 and everything worked as hoped. I highly recommend this piece." Read more

"...Seems well made, length is good, cord and box are sturdy. No complaints. Took one star off for the wiring issue. I would purchase again." Read more

"...This plus looked so much smaller I had to go outside and make sure it fit all my vehicle plugs or I would have had to buy another plug end...." Read more

"...Box sits nicely under the gooseneck and the cord was plenty long enough to reach my receptacle near the bumper." Read more

32 customers mention18 positive14 negative

Customers are mixed about the ease of wiring. Some mention that it made hooking up the wires a breeze, while others say that it didn't match their factory Dodge or GM wiring.

"...This made hooking up the wires a breeze. Great quality!" Read more

"...I like the wiring box to avoid splices. The constant 12v connection doesn’t work but I believe that’s my rover’s issue...." Read more

"Bought and installed on my gooseneck trailer. Made rewiring my trailer a lot better and will be easier to add additional lights in the future" Read more

"...The rest of the wires were all mismatched. Why have the correct colors, but not follow the standard?!?!" Read more

25 customers mention4 positive21 negative

Customers are dissatisfied with the color codes of the electronic wire. They say the wire colors are not standard, the color code does not match American dot laws, and the pin locations are incorrect. Customers also mention that it's very confusing to have to switch wire colors in the junction box because the wires don't match.

"...The positions on the plugs are the same but the colors are VERY MUCH NOT...." Read more

"Wire colors didn’t match common standard." Read more

"Wire colors and pin locations incorrect. I spent long time and effort to wire the trailer and have the wires correct standard colors...." Read more

"The plug is pretty good the wire colors are not standard. Make sure you test the wire color before hooking it up to you trailer wires" Read more

NOT wired the way you are expecting...
5 Stars
NOT wired the way you are expecting...
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.
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Top reviews from the United States

Reviewed in the United States on February 25, 2024
Reviewed in the United States on October 24, 2023
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Reviewed in the United States on September 14, 2022
Customer image
5.0 out of 5 stars NOT wired the way you are expecting...
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.
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4 people found this helpful
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Reviewed in the United States on June 11, 2020
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5.0 out of 5 stars Solid, sturdy, and worth the money
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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Reviewed in the United States on August 20, 2023
One person found this helpful
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Reviewed in the United States on March 22, 2022
One person found this helpful
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Reviewed in the United States on December 24, 2023
Reviewed in the United States on December 3, 2023

Top reviews from other countries

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clifman
5.0 out of 5 stars tres bon produit
Reviewed in Canada on September 7, 2021
Stephan Noel
3.0 out of 5 stars Good for the Price
Reviewed in Canada on May 23, 2023
Emil Lozada
1.0 out of 5 stars Do not buy
Reviewed in Canada on June 9, 2023