{"product_id":"seamaka-7-way-to-dual-7-blade-4-flat-trailer-adapter-dual-output-with-mounting-bracket","title":"Seamaka 7-Way to Dual 7-Blade \u0026 4-Flat Trailer Adapter — Dual-Output with Mounting Bracket","description":"\u003cp\u003e\u003cstrong\u003eSeamaka's 7-way to dual 7-blade and 4-flat trailer adapter converts a truck's factory 7-way socket into both a 7-blade and a 4-flat connector for towing multiple trailer types.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis compact adapter gives you two connector styles from one truck socket so you can hook up different trailers without rewiring or carrying separate adapters. Built with heavy-duty plastic, pure copper wiring, and a spring-loaded dust cover, it’s designed to withstand road vibration and moisture while keeping electrical contacts reliable. The kit includes the adapter, a mounting bracket, fasteners and instructions for straightforward installation.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this adapter let me tow different trailers from one socket?\u003c\/h3\u003e\n\u003cp\u003eThe Seamaka adapter splits a factory 7-way truck outlet into a 7-blade and a 4-flat output at the same time. That means you can plug in trailers that require full 7-pin functions (brake controller, reverse, auxiliary power) or simpler 4-pin lighting-only trailers without swapping connectors.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDual outputs: simultaneous 7-blade and 4-flat sockets.\u003c\/li\u003e\n  \u003cli\u003eDirect fit for vehicles with a standard 7-way receptacle.\u003c\/li\u003e\n  \u003cli\u003eCompatible with brake controllers and lighting circuits.\u003c\/li\u003e\n  \u003cli\u003eNo vehicle wiring modifications required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and protection does the adapter offer?\u003c\/h3\u003e\n\u003cp\u003eThe housing is molded from durable plastic to resist impact and the internal conductors are pure copper for consistent conductivity. A spring-loaded cover seals the plug faces when not in use to reduce dust, corrosion and moisture intrusion, helping preserve contact integrity over time.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHeavy plastic shell resists road wear and vibration.\u003c\/li\u003e\n  \u003cli\u003ePure copper wires for stable electrical transfer.\u003c\/li\u003e\n  \u003cli\u003eSpring-loaded dust cover protects contacts when idle.\u003c\/li\u003e\n  \u003cli\u003eCorrosion-resistant terminals for longer life.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is it to mount and use this adapter on my truck or RV?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward: insert the adapter into your factory 7-way socket and secure the included mounting bracket with the supplied screws and nuts to keep it from dangling. The package includes simple instructions, and connections follow standard pin assignments so most users can install it without specialty tools.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes mounting bracket, screws and nuts for secure attachment.\u003c\/li\u003e\n  \u003cli\u003ePlug-and-play design fits standard 7-way receptacles.\u003c\/li\u003e\n  \u003cli\u003eInstructions included for quick setup.\u003c\/li\u003e\n  \u003cli\u003eCompact form factor reduces snagging behind the hitch.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat trailer functions will work when using this adapter?\u003c\/h3\u003e\n\u003cp\u003eThe adapter passes through lighting circuits for tail, brake, and turn signals, and supports reverse lights and auxiliary power where the towing vehicle provides them. When connected to a 7-pin trailer, you retain access to brake controller output and additional power circuits that 4-pin connectors do not carry.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTail, brake and turn signal wiring supported on both outputs.\u003c\/li\u003e\n  \u003cli\u003eReverse light and auxiliary circuits relayed via 7-pin output.\u003c\/li\u003e\n  \u003cli\u003eBrake controller signal preserved on 7-pin connection.\u003c\/li\u003e\n  \u003cli\u003e4-flat output available for lighting-only trailers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Seamaka 7-way to 7-blade and 4-flat adapter is ideal for truck and RV owners who tow multiple trailer types and want a durable, ready-to-mount solution to avoid swapping connectors. It suits drivers of Ford, GM, Jeep, GMC and other vehicles with a standard factory 7-way socket who need reliable lighting, brake and auxiliary connections without modifying their vehicle’s wiring.\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 work with my factory 7-way trailer socket?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it’s designed to plug into standard factory 7-way truck or RV sockets used by Ford, GM, Jeep, GMC and similar vehicles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the adapter carry brake controller signals and auxiliary power?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The 7-pin output maintains brake controller and auxiliary circuits; the 4-flat output provides lighting-only connections.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Seamaka","offers":[{"title":"Default Title","offer_id":55167657804119,"sku":"B0F5B6KS6F","price":40.67,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/seamaka-front-view-adapter.jpg?v=1790390436","url":"https:\/\/britishgarage.co.uk\/products\/seamaka-7-way-to-dual-7-blade-4-flat-trailer-adapter-dual-output-with-mounting-bracket","provider":"British Garage","version":"1.0","type":"link"}