---
product_id: 476525043
title: "Trailer Wire Extension 4-Way 4 Pin Plug, 4 Wire 4-Flat Connector with Male & Female Plug 18 AWG 59 inch Hitch Light Trailer Wiring Harness Extender"
brand: "mosleyz"
price: "€ 25.43"
currency: EUR
in_stock: true
category: "Mosleyz"
url: https://www.desertcart.es/products/476525043-trailer-wire-extension-4-way-4-pin-plug-4-wire
store_origin: ES
region: Spain
---

# 4-pin flat plug & socket for universal trailer compatibility 59-inch 18 AWG color-coded wires for safe, easy installation Waterproof & dustproof silicone housing for ultimate durability Trailer Wire Extension 4-Way 4 Pin Plug, 4 Wire 4-Flat Connector with Male & Female Plug 18 AWG 59 inch Hitch Light Trailer Wiring Harness Extender

**Brand:** mosleyz
**Price:** € 25.43
**Availability:** ✅ In Stock

## Summary

> 🔗 Stay Connected, Stay Ahead: The Ultimate Trailer Wiring Extension You Can't Afford to Miss!

## Quick Answers

- **What is this?** Trailer Wire Extension 4-Way 4 Pin Plug, 4 Wire 4-Flat Connector with Male & Female Plug 18 AWG 59 inch Hitch Light Trailer Wiring Harness Extender by mosleyz
- **How much does it cost?** € 25.43 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/476525043-trailer-wire-extension-4-way-4-pin-plug-4-wire)

## Best For

- mosleyz enthusiasts

## Why This Product

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

## Key Features

- • **Color-Coded Clarity:** Simplify installation with clearly marked 18 AWG wires—no guesswork, just reliable connections.
- • **Plug & Play 4-Pin Design:** Seamlessly connect trailers, trucks, and ATVs with industry-standard 4-flat connectors.
- • **Built to Brave the Elements:** Premium waterproof and dustproof silicone casing ensures your wiring stays safe rain or shine.
- • **Extended Reach, No Compromise:** 59-inch length gives you the flexibility to maintain safe distances without signal loss.
- • **Universal Vehicle Compatibility:** Perfect for trailers, motorcycles, trucks, and more—one harness to rule them all.

## Overview

The Mosleyz 4-Way 4-Pin Trailer Wire Extension offers a 59-inch, 18 AWG color-coded wiring harness with waterproof silicone housing and durable ABS connectors. Designed for universal compatibility with trailers, trucks, and motorcycles, it ensures safe, easy installation and reliable electrical connections in all weather conditions.

## Description

Features: Standard American car trailer cable with plug and socket for easy use and wide application, suitable for commercial vehicles, semi-trailers and trailers. Environmentally friendly plastic case, waterproof and dustproof, high security. Pure copper contact points, good electrical conductivity, sturdy and durable. This cable allows you to connect a 4-pin US plug on the vehicle to a 4-pin socket on a truck or towed item, and also acts as an extension cord to maintain a safe distance. Different colors of cable lines represent different signal lights, which are easy to install and practical. Item Type: Electrical Plug & Sockets Item Name: 4-pin Flat Plug with Socket Color: shown as picture Material: ABS+ copper Voltage: 6-24V Cable Length: 59in/ Wire gauge: 18*4AWG Package Size: 13.5 * 11 * 4cm / 5.3 * 4.3 * 1.6in Package Weight: 110g / 3.9oz Package Includes: 1 * 4-pin Flat Trailer Plug Wiring configuration: PIN 1-white wire (ground wire) PIN 2-brown wire (tail light and license plate light) PIN 3-yellow line (left / hand direction indicator) PIN 4-green line (right / horizontal indicator)

## Features

- 1. 4-pin Trailer Light Wiring Harness, Special Design to Fit For Trailer LED Lights, Tailgate Light Bars and Other Use
- 2. Premium Insulating Silicone Housing, Worry-free About Wiring Safety, Super Flexible and Durable
- 3. Environmentally friendly plastic case, waterproof and dustproof, high security
- 4.18 AWG COLOR CODED WIRES- Color coded 18 AWG wires clearly identify each wire's function; makes installation safe and straight-forward
- 5. Used for All Types of Vehicles Like Trailer, Truck, Motorcycle Trailer, ATV Trailer.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0887SF6LV |
| Best Sellers Rank | #159,897 in Automotive ( See Top 100 in Automotive ) #113 in Automotive Hitch Wiring |
| Brand Name | Mosleyz |
| Cable Type | Flat 4-Way |
| Connector Type | 4-pin Flat Trailer Plug With Socket |
| Customer Reviews | 4.8 4.8 out of 5 stars (551) |
| Manufacturer | Mosleyz |
| Material Type | Acrylonitrile Butadiene Styr, Silicone |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | MOSTH25F |
| Recommended Uses For Product | electrical |
| Unit Count | 1 Count |
| Wire Diameter | 1.02 Millimeters |

## Product Details

- **Brand:** Mosleyz
- **Connector type:** 4-pin Flat Trailer Plug With Socket
- **Material:** Acrylonitrile Butadiene Styr, Silicone
- **Recommended uses for product:** electrical
- **Wire diameter:** 1.02 Millimeters

## Images

![Trailer Wire Extension 4-Way 4 Pin Plug, 4 Wire 4-Flat Connector with Male & Female Plug 18 AWG 59 inch Hitch Light Trailer Wiring Harness Extender - Image 1](https://m.media-amazon.com/images/I/41vbKGatXLL.jpg)
![Trailer Wire Extension 4-Way 4 Pin Plug, 4 Wire 4-Flat Connector with Male & Female Plug 18 AWG 59 inch Hitch Light Trailer Wiring Harness Extender - Image 2](https://m.media-amazon.com/images/I/4110nmMF5OL.jpg)
![Trailer Wire Extension 4-Way 4 Pin Plug, 4 Wire 4-Flat Connector with Male & Female Plug 18 AWG 59 inch Hitch Light Trailer Wiring Harness Extender - Image 3](https://m.media-amazon.com/images/I/41Xqe9OeQbL.jpg)
![Trailer Wire Extension 4-Way 4 Pin Plug, 4 Wire 4-Flat Connector with Male & Female Plug 18 AWG 59 inch Hitch Light Trailer Wiring Harness Extender - Image 4](https://m.media-amazon.com/images/I/51y9Lpkvr+L.jpg)
![Trailer Wire Extension 4-Way 4 Pin Plug, 4 Wire 4-Flat Connector with Male & Female Plug 18 AWG 59 inch Hitch Light Trailer Wiring Harness Extender - Image 5](https://m.media-amazon.com/images/I/51uwJNHx10L.jpg)

## Available Options

This product comes in different **Size** options.

## Frequently Bought Together

- Trailer Wire Extension 4-Way 4 Pin Plug, 4 Wire 4-Flat Connector with Male & Female Plug 18 AWG 59 inch Hitch Light Trailer Wiring Harness Extender
- CURT 58030 Trailer-Side 4-Pin Flat Wiring Harness with 12-Inch Wires
- Hopkins 47345 4 Wire Flat Adapter

---

## 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.es/products/476525043-trailer-wire-extension-4-way-4-pin-plug-4-wire](https://www.desertcart.es/products/476525043-trailer-wire-extension-4-way-4-pin-plug-4-wire)

---

*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-11-10*