---
product_id: 308144209
title: "4 Pin Trailer Plug Extender Trailer Wire Extension Harness Quick-Connect Trailer Adapter Extender 4 Way Flat Male and Female Wiring Harness Adapter 28Inch/2.3Feet"
brand: "saihisday"
price: "€ 18.77"
currency: EUR
in_stock: true
reviews_count: 9
url: https://www.desertcart.at/products/308144209-4-pin-trailer-plug-extender-trailer-wire-extension-harness-quick
store_origin: AT
region: Austria
---

# 4-Pin Connector 2.3 Feet Length Weatherproof Design 4 Pin Trailer Plug Extender Trailer Wire Extension Harness Quick-Connect Trailer Adapter Extender 4 Way Flat Male and Female Wiring Harness Adapter 28Inch/2.3Feet

**Brand:** saihisday
**Price:** € 18.77
**Availability:** ✅ In Stock

## Summary

> 🔧 Connect with Confidence!

## Quick Answers

- **What is this?** 4 Pin Trailer Plug Extender Trailer Wire Extension Harness Quick-Connect Trailer Adapter Extender 4 Way Flat Male and Female Wiring Harness Adapter 28Inch/2.3Feet by saihisday
- **How much does it cost?** € 18.77 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/308144209-4-pin-trailer-plug-extender-trailer-wire-extension-harness-quick)

## Best For

- saihisday enthusiasts

## Why This Product

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

## Key Features

- • **Seamless Connectivity:** Effortlessly plug into your existing wiring for instant trailer connection.
- • **Durable & Weatherproof:** Fully jacketed cable protects against harsh weather and road conditions.
- • **Exquisite Craftsmanship:** Engineered with 18-gauge wires for reliable performance.
- • **Versatile Compatibility:** Ideal for RVs, trucks, trailers, campers, and more.
- • **User-Friendly Installation:** No splicing required—just plug and play for quick setup.

## Overview

The 4 Pin Trailer Plug Extender is a 28-inch (2.3 feet) wiring harness designed for seamless connectivity between your vehicle and trailer. Featuring a durable, weatherproof design with 18-gauge wires, this plug-and-play solution is perfect for a variety of applications, including RVs, trucks, and food vans. Easy to install and built to last, it ensures reliable performance in any condition.

## Description

4 Pin Trailer Plug Extender Trailer Wire Extension Harness Quick-Connect Trailer Adapter Extender 4 Way Flat Male and Female Wiring Harness Adapter 28Inch/2.3Feet

## Features

- 4 Way Flat Trailer Txtension Easy To Install: 4 way connector with fully jacketed cable 18 Guage wires, fit for any types of trailers
- Exquisite Workmanship: Coiled cable 2.3 feet 4 Pin wire flat adapter comes with the fully jacketed cable harness, protecting inner wires from the bad weather and hazardous road conditions
- Your Choose: Perfect for RVs, trucks, trailers, campers, caravans, food vans, boat trailer, etc
- Plug And Play: Just need to plug this 4-Pin flat spring wiring trailer into your existing wiring, you can connect your automotive with the trailer. No need splice wires
- Installation Reminder: Please install the product according to professional requirements after receiving this item

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Plastic |
| Connector Type | 4-pin Flat Trailer Connector |

## Images

![4 Pin Trailer Plug Extender Trailer Wire Extension Harness Quick-Connect Trailer Adapter Extender 4 Way Flat Male and Female Wiring Harness Adapter 28Inch/2.3Feet - Image 1](https://m.media-amazon.com/images/I/61Ommpwh-RL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Handy gadget for trailer extension
  

*by S***B on Reviewed in the United States on August 1, 2024*

I modified a Malone Microsport trailer to accommodate an inflatable pontoon boat. Had to add a 14” extension to the trailer tongue and found the trailer plug wouldn’t reach the truck. This extension solved the problem. Appears to be well made.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    standard plugs.works well
  

*by S***N on Reviewed in the United States on May 25, 2024*

Good quality.I used it to connect to my portable toilet on my one man submarine

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Works
  

*by S***E on Reviewed in the United States on March 28, 2024*

Use as extension as new truck plug outlet is built in. Works as it should. So far no quality issues or concerns. Recommend

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**Shop now:** [https://www.desertcart.at/products/308144209-4-pin-trailer-plug-extender-trailer-wire-extension-harness-quick](https://www.desertcart.at/products/308144209-4-pin-trailer-plug-extender-trailer-wire-extension-harness-quick)

---

*Product available on Desertcart Austria*
*Store origin: AT*
*Last updated: 2026-04-22*