---
product_id: 314036070
title: "4 Pin Flat Y-Splitter Plug Adapter with 17.5 inch Trailer Extension Harness"
brand: "oyviny"
price: "A$25"
currency: AUD
in_stock: null
reviews_count: 8
url: https://www.desertcart.com.au/products/314036070-4-pin-flat-y-splitter-plug-adapter-with-17-5
store_origin: AU
region: Australia
---

# plug & play ease waterproof design 4-pin connectivity 4 Pin Flat Y-Splitter Plug Adapter with 17.5 inch Trailer Extension Harness

**Brand:** oyviny
**Price:** A$25
**Availability:** ❌ Out of Stock

## Summary

> 🔧 Upgrade Your Trailer Game with Ease!

## Quick Answers

- **What is this?** 4 Pin Flat Y-Splitter Plug Adapter with 17.5 inch Trailer Extension Harness by oyviny
- **How much does it cost?** A$25 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/314036070-4-pin-flat-y-splitter-plug-adapter-with-17-5)

## Best For

- oyviny enthusiasts

## Why This Product

- Trusted oyviny brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Reliable Support:** 1-year warranty and 24/7 customer service for peace of mind.
- • **Dual Power Capability:** Effortlessly power 2 LED light bars simultaneously.
- • **Premium Build Quality:** Crafted with high-grade insulated silicone for durability.
- • **Weather-Resistant Design:** Waterproof and anti-electric housing ensures longevity.
- • **User-Friendly Installation:** Plug & play design for quick and easy setup.

## Overview

The Oyviny 4 Pin Flat Y-Splitter Plug Adapter is a high-quality, user-friendly solution for powering multiple LED light bars and trailer lights. With a durable, waterproof design and a straightforward plug & play installation, this 17.5-inch extension harness is perfect for any trailer enthusiast looking to enhance their lighting setup.

## Description

Oyviny 4 Pin Flat Y-Splitter Plug Adapter with 17.5 inch Trailer Extension Harness for LED Tailgate Light Bar and Trailer Lights Pure Copper Wires Plug & Play 4 Way Y-Splitter Plug

## Features

- Perfect Y-Connector. 4 Way Y-Splitter harness contains 1 male and 2 female connectors that allows you to power 2 LED light bars at one time No complicated wiring or splicing
- High Quality Trailer Splitter. Y-Splitter housing made of a premium insulated silicone, waterproof and anti-electric, can be safely wired, flexible and durable, ensure long service life
- 17.5" long 4-pin Y-splitter dual output plug adapter. The 2 female adapter comes with 2 waterproof rubber cover, which keeps the connection points dry, and protect the plug from dusts and corrosion
- Plug&Play. Y-splitter Adapter is designed to fit for trailer LED lights, tailgate light bars and other use, fits all types of trailers, flexible and easy installation, helping to extend your original one
- Reliable Service. 2-Way Y-Splitter Harness comes with 1 Year Warranty and 24 Hours Service, your satisfaction comes first, if any question we will 100% assist you!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Weight | 3.98 ounces |
| Package Dimensions | 6.2 x 2.4 x 1.4 inches |
| Country of Origin | China |
| Item model number | XC-4FLAT-102 |

## Images

![4 Pin Flat Y-Splitter Plug Adapter with 17.5 inch Trailer Extension Harness - Image 1](https://m.media-amazon.com/images/I/713d54scTQL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Did the job perfectly
  

*by E***T on Reviewed in the United States on December 29, 2023*

Not cheaply made. I highly recommend it.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Very easy to use
  

*by J***N on Reviewed in the United States on March 29, 2023*

Great  product

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    splitter
  

*by B***R on Reviewed in the United States on October 27, 2023*

works great when i pull my trailer i have rear running lights so i can use this so they both work running lights and trailer lights would recommend this

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.com.au/products/314036070-4-pin-flat-y-splitter-plug-adapter-with-17-5](https://www.desertcart.com.au/products/314036070-4-pin-flat-y-splitter-plug-adapter-with-17-5)

---

*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-08*