--- 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: "€ 30.79" currency: EUR in_stock: true reviews_count: 10 category: "Yonhan" url: https://www.desertcart.gr/products/157904507-yonhan-4-pin-to-7-pin-adapter-trailer-light-adapter store_origin: GR region: Greece --- # 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:** € 30.79 **Availability:** ✅ In Stock ## Summary > 🚛 Upgrade your tow game—connect smarter, tow stronger! ## 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?** € 30.79 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/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 housing and pure copper core ensure peak conductivity and longevity. - • **Mount & Go Convenience:** Includes mounting bracket and hardware for quick, secure installation. - • **Plug & Play Simplicity:** No wire splicing needed—just connect and tow with confidence. - • **Universal Compatibility:** Works with all towing vehicles without electric brakes—trailers, RVs, and semi-trailers. - • **Weatherproof Reliability:** Spring-loaded seal keeps dust and water out, extending adapter life. ## Overview The YONHAN 4 Pin to 7 Pin Adapter effortlessly converts 4-pin flat truck connectors to standard 7-pin RV blade sockets, enabling synchronized trailer lighting without wire splicing. Crafted from corrosion-resistant ABS plastic with a pure copper core, it guarantees durable, high-performance conductivity. Its dust and water-proof sealed design ensures long-lasting reliability, while the included mounting bracket simplifies installation. Ideal for all towing vehicles without electric brakes, this adapter is a must-have for professional-grade towing solutions. ## 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 | #59,093 in Automotive ( See Top 100 in Automotive ) #109 in Trailer Connectors | | Brand | YONHAN | | Customer Reviews | 4.7 4.7 out of 5 stars (1,466) | | 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 ### ⭐⭐⭐⭐⭐ Good value for the money *by S***Z on January 24, 2026* His belongs to my husband He uses it but I don’t know much about it ## 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 - True Mods 4-Way Flat Trailer Wiring Tester [Nickel-Plated Copper Terminals] [Male & Female] [Continuity Test] 4-Pin Trailer Light Wire Circuit Tester - 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 --- ## 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.gr/products/157904507-yonhan-4-pin-to-7-pin-adapter-trailer-light-adapter](https://www.desertcart.gr/products/157904507-yonhan-4-pin-to-7-pin-adapter-trailer-light-adapter) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-06-02*