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Nilight

Nilight 4 Way Trailer End Connector 5 Feet Jacketed Cable Heavy Duty 18AWG 4 Pin Trailer Light Plug Pure Copper Trailer Side Male End Replacement 4 Flat Extension Wiring Harness, 2 Years Warranty

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Availability: In Stock.
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Arrives Tuesday, May 12
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Color: Male End Jacket Wiring Harness 5FT


Features

  • Trailer-Side 4 Pin Extension Wire: This trailer wire extension with 4 way flat plug connector is designed to provide plenty of extra length for your flexible installation. Provides a more convenient male plug arrangement for replacing broken wires on a variety of trailers. It can be used for marine boat trailers, horse trailers, motorcycle trailers, ATV trailers, and other cargo utility trailer hitches as long as it has a 4-way connection.
  • Heavy Duty Trailer Light Plug: Nilight Trailer End Connector 4 Wire is a superior upgrade to your 4 prong taped wires on trailers. Come with 18 AWG standard color-coded wires ensure your proper wiring connection to your taillights, brake lights and turn signals.
  • 4-pole flat connector: This 4-prong trailer light plug wiring equipped with blunt-cut, color-coded trailer wires, comes ready to splice into your existing trailer wiring. 4-pin connectors are available allowing the basic hookup of the lighting functions (Left/Right turn and brake lights) plus one pin is provided for a ground wire. (Not compatible with motorcycle trailer wiring, please confirm the fitment to be not the wrong item before ordering.)
  • Built to Last: Nilight Flat 4-pin male end trailer harness is made of heavy duty 18-gauge wires and pure copper terminals, excellent weatherproof & abrasion proof cable sheath, Color coded wires for clearly identified as each wire's function, Extends wiring system provides more flexibility. Rated voltage: 300V. Heat resistance: 105C. It is wrapped with insulating rubber that will never rust or corrode.
  • Package: 1x 5Ft 4 Way Trailer End Connector Wire, 1 x User Manual, 2 Year Warranty by Nilight.

Brand: Nilight


Connector Type: 4 Pin


Cable Type: Extension Cable


Compatible Devices: 4 Pin Male Connectors


Special Feature: Extension Wire


Brand: ‎Nilight


Connector Type: ‎4 Pin


Cable Type: ‎Extension Cable


Compatible Devices: ‎4 Pin Male Connectors


Special Feature: ‎Extension Wire


Compatible Phone Models: ‎No Compatible Phone Models


Recommended Uses For Product: ‎Trailer wiring extensions


Color: ‎Male End Jacket Wiring Harness 5FT


Connector Gender: ‎Male-to-Female


Shape: ‎Flat


Number of Pins: ‎4


AC Adapter Current: ‎15 Amps


Unit Count: ‎1.0 Count


Item Weight: ‎0.14 Kilograms


Indoor/Outdoor Usage: ‎Outdoor


Number of Items: ‎1


Wattage: ‎1000 watts


Maximum Voltage: ‎300 Volts


Item Length: ‎60 Inches


Manufacturer: ‎Nilight


UPC: ‎840323914505


Item Weight: ‎4.8 ounces


Item model number: ‎50333T


Date First Available: ‎November 28, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, May 12

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Good product well made
Color: 7Pin to 5Pin Coiled Cable
Works great now I won’t catch wires hanging low tear them out, we will see how it holds up to the Florida sun
Reviewed in the United States on January 15, 2026 by HARDCORE FISHING INC
    • Trailer wiring.
Color: Male End Jacket Wiring Harness 5FT
Worked great.
Reviewed in the United States on January 27, 2026 by RICHARD
    • The perfect splitter for lights and trailer
Color: 4 Way Trailer Y-Splitter
The perfect splitter. Can tell its made of good strong material. It's as easy as plug n play. Definitely would recommend. Needed for tailgate led strip light and still have plug in for trailer. Works perfect!!
Reviewed in the United States on September 10, 2025 by Iceman
    • Took My Trailer Game to the Next Level
Color: 7Pin to 5Pin Coiled Cable
So, I recently got my hands on the Nilight 7 Way to 5 Way Coiled Trailer Extension Wiring Harness, and let me tell you, it's like the Swiss Army knife of trailer wiring. I didn’t realize my trailer game was missing out until I plugged this bad boy in. First off, the coiled design is so satisfying to use that I’m half-convinced it’s secretly trying to hypnotize me into buying more trailers. It stretches, coils back, and somehow manages not to look like a tangled mess of spaghetti. I’m not saying it’s magical, but I’m also not ruling it out. Installing it was easier than making instant noodles. I plugged it in and boom—my trailer lights are now working perfectly, which is great because previously, the only thing that lit up were my hopes of not getting pulled over by the trailer police. Now, my brake lights, turn signals, and tail lights are all in sync like a perfectly choreographed dance routine. The only hiccup? I’ve found myself using phrases like “trailer wiring” and “coiled harness” in casual conversation, which has earned me some confused looks at family gatherings. But hey, when your trailer lighting is on point, who cares if people think you’ve joined a niche wiring enthusiasts’ club? In conclusion, if you want your trailer to go from “that’s a bit sketchy” to “wow, you really know your stuff,” grab the Nilight 7 Way to 5 Way Coiled Trailer Extension Wiring Harness. It’s like giving your trailer a power-up, and who doesn’t love a good power-up? ... show more
Reviewed in the United States on September 5, 2024 by Spencer
    • Buy it
Color: 7Pin to 5Pin Coiled Cable
Good product, great price, Amazing seller!
Reviewed in the United States on December 18, 2025 by T. Truong
    • Has worked well
Color: Male End Jacket Wiring Harness 5FT
It fits snuggly without being too tight. The wires are proper size and worked well for soldering. I solder all these type connections for a water tight and zero resistance operation. Everything in heat shrink so there is no obvious splice makes a strong bundle.
Reviewed in the United States on December 3, 2025 by Michael Wilson
    • Worked well for a small trailer
Color: Male End Jacket Wiring Harness 10FT
My 5x8 utility trailer needed a new plug, as it had dried out and was cracking. This product worked well to rewire it, although I didn't need to used the full length as a I had a junction point under the trailer. It was easy enough to wire up with basic connectors and wire strippers, and the color coding of the wires was correct for standard trailer wiring. ... show more
Reviewed in the United States on June 23, 2025 by Chris Carter
    • Nice harness
Color: 7Pin to 5Pin Coiled Cable
Works as described and a great price. Highly recommended
Reviewed in the United States on August 17, 2025 by Wild Bill

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