4 Way Flat Trailer Y-Splitter Adapter Extension Harness Nilight
4 Way Flat Trailer Y-Splitter Adapter Extension Harness Nilight
4 Way Flat Trailer Y-Splitter Adapter Extension Harness Nilight
4 Way Flat Trailer Y-Splitter Adapter Extension Harness Nilight
4 Way Flat Trailer Y-Splitter Adapter Extension Harness Nilight
4 Way Flat Trailer Y-Splitter Adapter Extension Harness Nilight
4 Way Flat Trailer Y-Splitter Adapter Extension Harness Nilight
4 Way Flat Trailer Y-Splitter Adapter Extension Harness Nilight

4 Way Flat Trailer Y-Splitter Adapter Extension Harness

$9.96
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30 Days Returns

Nilight will accept returns for up to 30 days from the date of purchase. Please include all original items in your return shipment. Incomplete returns may not be eligible for a full refund. Returns within 30 days or purchase will receive a full refund for the purchase price of the product.

No returns will be accepted after 30 days. Nilight will provide a return shipping label upon request.

Non-contiguous US residents and International residents – including Alaska, Hawaii, Canada and Mexico – are responsible for return shipping charges. Refunds will be applied to the original payment method that was used. Refunds are generally issued within 5-10 business days of Nilight receiving all returned goods. Your bank may require additional processing time to reflect the refund in your account.

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2024 Product Guide

About this item

  • Premium Insulating Silicone Housing, Worry-free About Wiring Safety, Super Flexible and Durable
  • Built To Last: Employ quality pure copper wire with tin plating for the best current conductivity and anti-oxidation ability, and premium PVC coating for the best anti-corrosion and anti-aging ability. Withstand sea water, no brittleness, no break, durable to last.
  • Color Coded Wires: Wires are color-coded and bonded, white for ground, brown for running and license light, yellow for left stop turn, and green for the right stop. Easily route into your trailer's wiring system and connect with lights.
  • Standard 4 Way Flat Connector: Male plug with 4 wires, female plug with 4 wires. Plug and play match with any other standard 4-pin flat plugs.
  • Universal Application: perfect for connecting your trailer led bars, tailgate light bars, rear camera, etc.

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vehicle wiring harness

Key Features

2

Standard 4 Way Flat Connector

A flexible 4-way Y-Splitter adapter can be plug and play, flexible and easy installation. Fits all types of trailers, and helps to extend your one without splicing new wires.

Quality Wire

Quality Wire

Use pure copper wire with tin plating and premium PVC coating. Gets it the best current conductivity, anti-oxidation ability, and anti-corrosion, anti-aging ability.

Durable in Sea Water

Durable in Sea Water

Withstand sea water, no brittleness, no break, durable to last, meet the purpose of most trailer lights.

Wide Application

trailer led bars, tailgate light bars, rear camera, etc.

wire harness

Customer Reviews

Based on 30 reviews
90%
(27)
10%
(3)
0%
(0)
0%
(0)
0%
(0)
C
Cathryn Kiwanuka
Very straight forward

Was just what I needed to rewire my old utility trailer! Worked great!

A
Amir Dhingra
Ground wire that goes all the way to the back of the trailer assures good connection!!

I buy this one because of the full length ground wire. Clear instructions so I know which wires go to which side. I have put this on a couple of trailers and highly recommend it.

J
Jaco Grobler
works like it should

works good

D
Douglas Kiganda
Quality product

I purchased this wiring harness to replace the original harness that came with my utility trailer. This harness is by far better quality. Easy to install and all of the lights worked first time. Would definitely recommend.

K
Kalpana Doshi
Don't know why but the lock and some of my windows started not working on the drivers side

Not sure why but I started having trouble with the drivers side locks and windows Not working. Even after removing it. Could be the car I really don't know.

J
Jasen Rogahn
Wire harness

Great product

S
Sohail Koshy
It did the job

Perfect for what I needed no issues installing it

E
Edward Witting
Full length ground wire

I picked this to rewire an old trailer. Trailer lights often fail because they are grounded to the trailer frame and the ground connections corrode. With this set it grounds from the vehicle all the way to one of the trailer lights. You then have to send a ground wire from one light to the other. I also grounded the trailer.The set comes with a vehicle harness as well, but unless you have an old vehicle with a 2 wire system you will need a 3 to 2 (not 2 to 3) converter to use the included vehicle harness and get both brake and turn signals. Easier to just buy a 3 to 2 converter with harness like the Curt 56175.

E
Evelyn White
does it fit

no

K
Kane Schmeler
Good product

Superr cooll

Parts ordered must be in stock for the order to ship. Approximately 98% of all orders placed leave our warehouses the same day (not including weekends & holidays). Even with our huge inventory, we may run out of an item. If this is the case you will receive an email with an expected availability date.


DELIVERY DAYS: 2-6 Business Days (More Time and Extra Fee for * Heavy and Big-size Products ) Processing Time: 1-2 Business Day


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