{"product_id":"oyviny-4-way-flat-to-7-way-round-trailer-wiring-adapter-black-dual-4-7-pin-output-with-mounting-bracket","title":"Oyviny 4-Way Flat to 7-Way Round Trailer Wiring Adapter Black — Dual 4\/7-Pin Output with Mounting Bracket","description":"\u003cp\u003e\u003cstrong\u003eThe Oyviny 4-way flat to 7-way round adapter is a vehicle-side wiring converter that gives you both a 4-pin flat and a 7-pin round trailer connection with a durable mounting bracket for easy, secure towing.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your truck or RV has a 4-way flat socket but you need to tow trailers that use either a 4-pin or a 7-pin connector, this adapter converts the vehicle-side 4-pin wiring into a standard 7-way round plug while retaining a 4-way flat output. Built for repeated use, the adapter includes a mounting bracket, dust covers, and a protective loom so you can swap between trailers without rewiring or unstable connections.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this adapter let me tow trailers with different plugs?\u003c\/h3\u003e\n\u003cp\u003eThe adapter accepts your vehicle's 4-way flat input and outputs both a 4-pin flat and a standard 7-pin round connector, enabling compatibility with older and newer trailer wiring systems. It routes the required signals through dedicated pigtails so you don’t lose braking or auxiliary functions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eConverts 4-way vehicle socket to both 4-pin flat and 7-way round outputs.\u003c\/li\u003e\n  \u003cli\u003eIncludes extra pigtails for brake, reverse, and auxiliary power functions.\u003c\/li\u003e\n  \u003cli\u003eMaintains standard wiring assignments to work with most trailers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs the Oyviny adapter built to withstand road use and weather?\u003c\/h3\u003e\n\u003cp\u003eYes — the shell is molded from ABS plastic to resist rust and impacts while a black wire loom protects the cables from abrasion. Both the 7-way and 4-way sockets have dust covers to keep moisture and dirt out when not connected.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eABS housing for corrosion resistance and impact protection.\u003c\/li\u003e\n  \u003cli\u003eProtective black wire loom to guard against wear and chafing.\u003c\/li\u003e\n  \u003cli\u003eDust caps on both sockets to reduce corrosion and contamination.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow straightforward is installation and mounting?\u003c\/h3\u003e\n\u003cp\u003eInstallation is plug-and-play for a vehicle that already has a standard 4-way flat socket: the adapter snaps into the vehicle connector and stays secure. The included mounting bracket, screws, and nuts let you fix the adapter to your hitch or frame to prevent movement and reduce wiring strain while driving.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePlug-and-play 4-pin connection that snaps in tightly without wiggle.\u003c\/li\u003e\n  \u003cli\u003eMounting bracket and hardware included for a permanent, stable fit.\u003c\/li\u003e\n  \u003cli\u003eSnug fit preserves electrical contact and prevents accidental disconnection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat kind of wiring and conductivity does this adapter use?\u003c\/h3\u003e\n\u003cp\u003eOyviny uses pure copper conductors sized to match the current demands of towing accessories: 18 AWG wire for the 4-way flat circuit and heavier 14 AWG for the additional pigtails and ground to handle brake and power signals. Solid connections and quality copper help ensure dependable lighting and auxiliary function performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePure copper wires for low-resistance, reliable conductivity.\u003c\/li\u003e\n  \u003cli\u003e18 AWG on the 4-way flat circuit; 14 AWG on pigtails and ground.\u003c\/li\u003e\n  \u003cli\u003eDesigned to preserve signal integrity for lights, brakes, and power.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: The Oyviny 4-way to 7-way adapter is ideal for truck and RV owners who tow different trailers and need a durable, ready-to-install converter without running new wiring. Choose this adapter if you want a reliable plug-and-play solution with mounting hardware, dust protection, and tougher wiring for brake and auxiliary functions. It’s particularly useful for owners who alternate between utility trailers, boat trailers, and campers and need consistent electrical connections without modification.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this adapter power trailer brakes?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the adapter includes 14 AWG pigtails for brake and auxiliary functions, enabling standard electric brake operation when wired correctly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does it include mounting hardware?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the package includes a mounting bracket, screws, and nuts for secure attachment to your hitch or frame.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Oyviny","offers":[{"title":"Default Title","offer_id":48085438431390,"sku":"B08N5WR1RY","price":40.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/oyviny-front-view-adapter.jpg?v=1785870993","url":"https:\/\/northtrailauto.ca\/products\/oyviny-4-way-flat-to-7-way-round-trailer-wiring-adapter-black-dual-4-7-pin-output-with-mounting-bracket","provider":"North Trail Auto","version":"1.0","type":"link"}