---
product_id: 157904507
title: "YONHAN 4 Pin to 7 Pin Adapter Trailer Light Adapter 4-Way Flat Truck to 7-Way Blade Reverse Plug Connector with Mounting Bracket for Towing Solutions"
brand: "yonhan"
price: "€ 30.59"
currency: EUR
in_stock: true
reviews_count: 10
category: "Yonhan"
url: https://www.desertcart.de/products/157904507-yonhan-4-pin-to-7-pin-adapter-trailer-light-adapter
store_origin: DE
region: Germany
---

# Dust & water-proof sealed design 4-pin to 7-pin seamless conversion ABS plastic for corrosion & heat resistance YONHAN 4 Pin to 7 Pin Adapter Trailer Light Adapter 4-Way Flat Truck to 7-Way Blade Reverse Plug Connector with Mounting Bracket for Towing Solutions

**Brand:** yonhan
**Price:** € 30.59
**Availability:** ✅ In Stock

## Summary

> 🚛 Upgrade your tow game with seamless, weatherproof power!

## Quick Answers

- **What is this?** YONHAN 4 Pin to 7 Pin Adapter Trailer Light Adapter 4-Way Flat Truck to 7-Way Blade Reverse Plug Connector with Mounting Bracket for Towing Solutions by yonhan
- **How much does it cost?** € 30.59 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/157904507-yonhan-4-pin-to-7-pin-adapter-trailer-light-adapter)

## Best For

- yonhan enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Durable ABS plastic housing and pure copper core ensure superior conductivity and long-term corrosion resistance.
- • **Universal Compatibility:** Works flawlessly with all towing vehicles without electric brakes—perfect for trailers, RVs, and semi-trailers.
- • **Weatherproof Reliability:** Spring-loaded seal keeps dust and water out, guaranteeing consistent trailer light performance in any condition.
- • **Plug & Play Towing Upgrade:** Effortlessly convert your 4-pin flat connector to a 7-pin RV blade socket—no wire splicing needed.
- • **Complete Mounting Kit Included:** Comes with a sturdy mounting bracket and hardware for quick, secure installation on your trailer hitch or bumper.

## Overview

The YONHAN 4 Pin to 7 Pin Adapter is a high-quality, easy-to-install trailer light converter that transforms a 4-pin flat truck connector into a standard 7-pin RV blade socket. Constructed with durable ABS plastic and a pure copper core, it offers excellent corrosion and heat resistance. Its dust and water-proof design ensures reliable performance in all weather conditions. The adapter includes a mounting bracket for secure attachment and is compatible with most towing vehicles that do not require electric brakes.

## Description

Buy YONHAN 4 Pin to 7 Pin Adapter Trailer Light Adapter 4-Way Flat Truck to 7-Way Blade Reverse Plug Connector with Mounting Bracket for Towing Solutions: Connectors - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Converts 4 pin flat to 7 pin RV style - Just what I needed for my old Toyota Van. All of my personal trailers have been converted to the 7 pin round, whoever installed the wiring on my old van used a 4 pin flat that converts the independent turn signals at the plug. I couldn't just install a 7 pin without also ordering another converter. This fixed my issue. High quality, the trailer plugs all for perfectly and worked just like it was supposed to. I couldn't build this adapter for cheaper than they charged for it.
Review: Quality - Works perfectly

## Features

- Easy to Use: Converts 4 pin flat truck connector to a standard 7 pin RV blade socket, connects tail reverse turn signals, synchronizes the trailer's signal light, no splicing of wires needed, easy to custom plug-in wiring for towing solutions
- High Quality: The 4 7 trailer adapter uses durable ABS plastic construction instead of PVC, improving the corrosion resistance and high-temperature resistance. The inner core is made of pure copper to enhance the conductive performance
- Dust & Water Proof: The trailer light adapter is Well-sealed spring-loaded keeps out dust and water when not in use, and prolongs its use life. Compatible with all towing vehicles that don't require electric brakes, including trailers, semi-trailers, RVs
- Simple Installation: The 4 way to 7 way trailer adapter comes with a mounting bracket and hardware, conveniently connect the trailer wiring adapter to your trailer hitch or bumper
- What You Get: 1 * 4 Way Flat to 7 Way Blade Trailer Light Adapter with Mounting Bracket, using manual. If you have any questions, don't hesitate to contact us

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07WS94Q3K |
| Best Sellers Rank | #33,850 in Automotive ( See Top 100 in Automotive ) #75 in Trailer Connectors |
| Brand | YONHAN |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,459) |
| Date First Available | August 19, 2019 |
| Item Weight | 10.6 ounces |
| Manufacturer | YONHAN |
| Manufacturer Part Number | TC1 |
| Model | TC1-BT-1 |
| Product Dimensions | 5.5 x 4 x 3 inches |

## Images

![YONHAN 4 Pin to 7 Pin Adapter Trailer Light Adapter 4-Way Flat Truck to 7-Way Blade Reverse Plug Connector with Mounting Bracket for Towing Solutions - Image 1](https://m.media-amazon.com/images/I/612N1WxhYaL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Converts 4 pin flat to 7 pin RV style
*by S***E on July 19, 2025*

Just what I needed for my old Toyota Van. All of my personal trailers have been converted to the 7 pin round, whoever installed the wiring on my old van used a 4 pin flat that converts the independent turn signals at the plug. I couldn't just install a 7 pin without also ordering another converter. This fixed my issue. High quality, the trailer plugs all for perfectly and worked just like it was supposed to. I couldn't build this adapter for cheaper than they charged for it.

### ⭐⭐⭐⭐⭐ Quality
*by O***. on November 27, 2025*

Works perfectly

### ⭐⭐⭐⭐⭐ Great
*by H***C on November 12, 2025*

Great item and very handy only wish and this is on me that I secured it better cause lost it and now need to reorder

## Frequently Bought Together

- YONHAN 4 Pin to 7 Pin Adapter Trailer Light Adapter 4-Way Flat Truck to 7-Way Blade Reverse Plug Connector with Mounting Bracket for Towing Solutions
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**Shop now:** [https://www.desertcart.de/products/157904507-yonhan-4-pin-to-7-pin-adapter-trailer-light-adapter](https://www.desertcart.de/products/157904507-yonhan-4-pin-to-7-pin-adapter-trailer-light-adapter)

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-02-04*