★★★★★
Great product.
Robert—February 15, 2026✓ Verified purchase
This is a convenient product to have. Great for new install, great for trouble shooting. I'm putting them on all my trailers. Read more
Nilight
Nilight Heavy Duty 7 Way Inline Trailer Plug 8 Feet Connector Cable 7Pin RV Round Extension Wiring Harness
$32.84$36.99
About this item
- Simply Your Wire Harness 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.Fit Type: Universal
- Convenient Trailer Wiring Sturdy junction box with color marked 7-poles convenient for wiring left/right turn light brake signal lamp reverse light tail light etc Junction box is much easier than managing loose wires
- Flexible Connection 8ft long cord with soft and durable PVC housing Flexible Connection The length prevents it from being strained during an emergency turn 7-Way Connects Brake Running Reverse Turn Signals and Auxiliary Power
- Good Sealing Performance Four open and four close sealed rubber gaskets are provided to make the entire junction box waterproof dustproof and corrosion-proof
- Package included: 1x 7-Way trailer plug with junction box, 4 x open gaskets, 4xClose gaskets
$32.84
Was $36.99Save $4.15
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Product details
| Brand | Nilight |
|---|---|
| Material | Acrylonitrile Butadiene Styrene, Copper, Polyvinyl Chloride (PVC), Rubber |
| Item dimensions L x W x H | 80 x 2 x 1 inches |
| Item Weight | 2.8 Pounds |
| Connector Type | 7-pin Round |
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Customer reviews
4.62,737 ratings
- 5★88%
- 4★13%
- 3★0%
- 2★0%
- 1★0%
Customers say
Customers find the trailer cable assembly easy to wire up and appreciate its high-quality construction and functionality, particularly for trailer installations where all lights work correctly.
★★★★★
Non standard wire colors: I figured out the correct colors for you
T. Riley—March 18, 2026✓ Verified purchase
Excellent quality product, wrong colors on the cables. Just connect your cables to the colors I list in my picture and you’ll be good. I used a multimeter to confirm every cable, and it works great if you follow my color scheme. Read more
★★★★★
Good upgrade
Toby—November 21, 2025✓ Verified purchase
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. Read more
★★★★★
Reliable, Weatherproof, and Built for Heavy Duty Use
SP1313—September 1, 2025✓ Verified purchase
Solid and durable! The Nilight 7-way plug is easy to install, weatherproof, and works perfectly for my trailer setup. Great quality and reliable connections. Read more
★★★★☆
Has proper gauge wire
Glocktard—October 15, 2025✓ Verified purchase
A few of The colors are wrong according to all other trailer wiring schematics (ya frustrating) The BIG box works if you need that but the lid does not have any type of water pro gasket, I would not use it mounted sideways! I cut mine off and crimped the wire. With that said the wires were absolutely of copper and the proper gauge that they claimed of some being 10,12 & 14 GA ✔️. Length was also correct (tip to butt) Read more
★★★★★
Excellent
Arnold—January 1, 2026✓ Verified purchase
Excellent Product easy This product will make any trailer look like million dollar one Read more
★★★★★
Great product and price
Colby—February 12, 2026✓ Verified purchase
I’ve bought a few of these now to re wire my trailers. They work great Read more
★★★★★
Wired for RV not utility trailer
Cookie54—December 21, 2025✓ Verified purchase
Happy with the product, but pay attention to the wiring on the connector plug as it is wired for RV code so if you are using it on a utility trailer you may need to switch some wire connections. Read more
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