--- product_id: 515825542 title: "4 Way Flat to 7 Way Round Blade Trailer Adapter Wiring Harness 4 Pin to 7 Pin Electrical Connector Wiring Plug Connector with Mounting Bracket for RV Truck Factory Tow Package,2 Years Warranty" brand: "nilight" price: "€ 49.91" currency: EUR in_stock: true category: "Nilight" url: https://www.desertcart.be/products/515825542-4-way-flat-to-7-way-round-blade-trailer-adapter store_origin: BE region: Belgium --- # 4-pin to 7-pin seamless power transfer Includes mounting bracket & hardware Rust-resistant, dustproof sealed cover 4 Way Flat to 7 Way Round Blade Trailer Adapter Wiring Harness 4 Pin to 7 Pin Electrical Connector Wiring Plug Connector with Mounting Bracket for RV Truck Factory Tow Package,2 Years Warranty **Brand:** nilight **Price:** € 49.91 **Availability:** ✅ In Stock ## Summary > 🔗 Connect with confidence—tow smarter, not harder! ## Quick Answers - **What is this?** 4 Way Flat to 7 Way Round Blade Trailer Adapter Wiring Harness 4 Pin to 7 Pin Electrical Connector Wiring Plug Connector with Mounting Bracket for RV Truck Factory Tow Package,2 Years Warranty by nilight - **How much does it cost?** € 49.91 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/515825542-4-way-flat-to-7-way-round-blade-trailer-adapter) ## Best For - nilight enthusiasts ## Why This Product - Trusted nilight brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted & Rated:** Top-rated with 4.6 stars and backed by a 2-year warranty for peace of mind. - • **Flawless Connectivity:** No wiggle-room, no loose fittings—just rock-solid trailer power. - • **Universal Compatibility:** Works with most trailers, RVs, and factory tow packages—your go-to adapter. - • **All-in-One Installation Kit:** Mounting bracket, screws, and nuts included for hassle-free setup. - • **Built to Brave the Elements:** Heavy-duty plastic with sealed cover protects against dust, moisture, and corrosion. ## Overview The Nilight 4-Way Flat to 7-Way Round Blade Trailer Adapter converts your vehicle’s 4-pin flat socket to a 7-pin round blade trailer plug, ensuring secure, reliable power transfer for turn signals, brakes, reverse lights, and auxiliary power. Featuring a durable, rust-resistant design with a sealed cover and included mounting hardware, it’s engineered for easy installation and long-lasting performance across most trailers, RVs, and tow packages. Rated 4.6 stars with a 2-year warranty, it’s the professional’s choice for seamless towing connectivity. ## Description Nilight Trailer Plug AdapterNilight 4-Way Flat to 7-Way Round Blade Trailer Adapter with Mounting Bracket for RV Truck Factory Tow Package is made to convert 4-way flat vehicle end to 7-way blade trailer end, makes the tight connection between vehicle socket and trailer plug, no wiggle-room, no loose fittings. Transfers the power from the vehicle to the trailer. Package Included: 1 x Trailer Adapter Plug, 1 x Mounting bracket 6 screws & 6 nuts, 1 x User Manual. ## Features - Compact Traction Adapter: This adapter converts 4 way flat vehicle end to 7 way blade trailer end, makes tight connection between vehicle socket and trailer plug, no wiggle-room, no loose fittings. Transfers the power from the vehicle to trailer. - Function: 4-pin flat socket designed to be converted to the 7-pin blade round type socket. Works on most vehicle wiring component like turn signals, brakes,reverse light and auxiliary power. - Durable Construction: Heavy duty black plastic construction prevents rusting, enhances appearance. Well sealed spring loaded cover increases protection against dust, moisture and corrosion. Protects the inner contacts from rust or damage. The black wire loom keeps the wiring contained and protects the harness for long lasting use. - Easy to Install: The 4 way to 7 way trailer adapter equipped with mounting bracket, screws, and nuts,conveniently connect the trailer wiring adapter to your trailer hitch or bumper and just find the right position to install and tighten the nut to install successfully. - Wide Application: Come with 1 x Trailer Adapter Plug, 1 x Mounting bracket 6 screws & 6 nuts, 1 x User Manual. Perfect for most trailers, semitrailers, caravans, RV. Commonly used with T-connectors or tail lamp converters with 4-way flat car end connections. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BWD8F5MP | | Best Sellers Rank | #23,720 in Automotive ( See Top 100 in Automotive ) #16 in Automotive Hitch Wiring | | Brand Name | Nilight | | Cable Type | Trailer Wiring Harness | | Connector Type | 4-way Flat to 7-way Round Blade | | Customer Reviews | 4.6 4.6 out of 5 stars (658) | | EU Spare Part Availability Duration | 2 Years | | Global Trade Identification Number | 00840323903363 | | Included Components | 1PC 4-Way Flat to 7-Way Round Blade Trailer Adapter | | Item Type Name | 4-Way Flat to 7-Way Round Blade Trailer Adapter | | Item Weight | 0.29 Kilograms | | Manufacturer | Nilight | | Material Type | Plastic | | Model | 50303T | | Number of Items | 1 | | Number of Packs | 1 | | Part Number | 50303T | | Recommended Uses For Product | electrical | | UPC | 840323903363 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Nilight - **Connector type:** 4-way Flat to 7-way Round Blade - **Item weight:** 0.29 Kilograms - **Material:** Plastic - **Recommended uses for product:** electrical ## Images ![4 Way Flat to 7 Way Round Blade Trailer Adapter Wiring Harness 4 Pin to 7 Pin Electrical Connector Wiring Plug Connector with Mounting Bracket for RV Truck Factory Tow Package,2 Years Warranty - Image 1](https://m.media-amazon.com/images/I/610KZWiUvsL.jpg) ## Available Options This product comes in different **Color** options. ## Frequently Bought Together - Nilight 4 Way Flat to 7 Way Round Blade Trailer Adapter Wiring Harness 4 Pin to 7 Pin Electrical Connector Wiring Plug Connector with Mounting Bracket for RV Truck Factory Tow Package,2 Years Warranty - Reese Towpower 8507111 Brakeman IV Digital Brake Control, Small Compact Design - MECMO Multi-Tow 4-Way Flat to 7-Way RV Blade and 4-Way Flat Female Trailer Wiring Adapter Connector Kit, Adapt 4-Way Flat Vehicle-Side Socket to Multiple Trailer Plugs with Mounting Bracket --- ## 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.be/products/515825542-4-way-flat-to-7-way-round-blade-trailer-adapter](https://www.desertcart.be/products/515825542-4-way-flat-to-7-way-round-blade-trailer-adapter) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-11-06*