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๐ Power Up Your Trailer Game with Effortless, Weatherproof Wiring!
The Nilight Heavy Duty 7 Way Inline Trailer Plug features a robust 7-pole copper blade connector integrated into a weatherproof junction box with sealed rubber gaskets. Its 12-foot flexible PVC cable ensures strain-free connections, while color-coded wiring simplifies installation for RVs, trailers, and commercial vehicles. Designed for durability and universal compatibility, this harness delivers reliable power to all trailer lighting and auxiliary systems, backed by a 2-year warranty.








| Asin | B0CR74NGD9 |
| Best Sellers Rank | #4,922 in Automotive (See Top 100 in Automotive) #13 in Trailer Connectors |
| Brand Name | Nilight |
| Cable Type | Flat Ribbon |
| Connector Type | 7 Way |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,826) 4.6 out of 5 stars |
| Included Components | 12FT Trailer Wiring Harness with Junction Box |
| Item Type Name | Trailer Wire Harness |
| Item Weight | 2.05 kg |
| Manufacturer | Nilight |
| Material Type | Copper, Polyvinyl Chloride (PVC) |
| Model | 51101TR |
| Number Of Items | 1 |
| Number Of Packs | 1 |
| Part Number | 1 |
| Upc | 840323916653 |
| Warranty Description | 2 Year Warranty |
User
Perfect for our camper!
This worked perfectly on our Forest River Camper, all wire colors matched our trailer side wiring. The diagram provided was a big help in identifying what wire controlled which set of lights, etc. Installation was super easy and the junction box that comes pre-attached is very nice. Perfect fit with good quality wiring materials. Exactly what I was looking for.
User
Quick shipment
Great part
User
Clean wiring and a great upgrade
I put it on a 2015 Jayco travel trailer everything was perfect. All the colors matched up perfectly. All lights worked as intended and I will be testing the trailer brakes in a couple of weeks when we go camping. It changed the wiring from a mess to nice and clean
User
Good upgrade
I work on a fleet of open and enclosed utility trailers. As each trailer comes in for wiring and light issues, I have been converting them over to this as it makes a simpler task of wiring the lights and brakes. It keeps everything neat and tidy and out of the weather. I like the longer whip because I can trim the length if I have to. So far I have had no issues on the trailers I have upgraded to this.
User
Switch colors
Great quality, but all the wiring was not in the correct color orientation.Brown(Running) was Green (Curbside)Green(Curbside) was Brown (Running)Yellow (Roadside) was Red (Reverse)Only Ground (White) was correct.Black is constant hot.Otherwise a good product, easy to install besides figuring out correct pattern and rearranging busbar since I had limited wire for my setup. Clean installation and doesnโt look tacky. Thanks!
User
Works Great! Check your wiring needs.
The confusion about wire color is because there are 2 different but identical looking 7 way plugs. This is a RV Standard plug and the coloring matched my new truck perfect. There is also an SAE Standard, this junction box will work but wires have to be swapped. Check the plug cap on vehicle to see what you have, both standards are very easy to look up. It is plastic so I put it on a protected area of trailer. Lights and brakes work great on trailer I use to pull tractors, I will be swapping all my trailers over to this as needed.
User
Value for money
Compatibility.
User
Itโs good quality
It worked
User
Easy Install, everything wired as shown!
Really impressed with this NiLight 7 way harness and junction box. The quality of the coating, right back to the junction box, is 2nd to none! They included some plugs and grommets for wiring which makes waterproofing on my end more simplified. All the wiring was as shown in the diagram and super simple to add my wiring harness into the junction box. The seals appear to seat well and the box is solid once mounted to the frame. I added some NiLight 18W (low amperage draw, still super bright!)spot lamps to the reverse circuit, bumper mounted. Should make those late night pull-ins to site easier๐
User
โู ู ุชุงุฒ
โุฌูุฏ
User
Well made good quality. Good instructions
Well made good quality. Good instructions
User
Fantastique.
Super bien. Facile ร installer
User
Great purchase.
This trailer plug with 8 ft wire and 7 Gang Junction Box simplified my trailer wiring job. This looks like it's made with quality materials.
Trustpilot
3 weeks ago
4 days ago