{"product_id":"curt-7-way-trailer-wiring-harness-extension-7-ft-for-select-ford-f-150-f-250-f-350-bed-mounted-rv-blade-retains-rear-socket","title":"CURT 7-Way Trailer Wiring Harness Extension 7 ft for Select Ford F-150\/F-250\/F-350 — Bed-Mounted RV Blade, Retains Rear Socket","description":"\u003cp\u003e\u003cstrong\u003eCURT 57008 is a 7-foot plug-and-play 7-way RV blade wiring extension that routes a second trailer connector into your truck bed while retaining the original rear socket.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhen towing fifth-wheel or gooseneck trailers from a pickup, you need a convenient, durable way to connect trailer lighting and auxiliary power inside the bed. The CURT 57008 extension plugs into your vehicle's existing OEM 7-way harness and delivers a factory-style connector inside the bed so you can hook up 5th wheel or gooseneck wiring without cutting, splicing, or sacrificing the bumper-mounted socket.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this harness keep both the bed and rear connectors usable?\u003c\/h3\u003e\n\u003cp\u003eThe CURT 57008 is designed to maintain the original rear 7-way socket while adding a second one in the truck bed. It connects to the OE harness behind the bumper and runs through the body to a bed-mounted socket, giving you two accessible connection points without modifying factory wiring.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e7-foot length positions the socket inside most truck beds.\u003c\/li\u003e\n  \u003cli\u003ePlug-and-play connector attaches to the factory 7-way harness.\u003c\/li\u003e\n  \u003cli\u003eRetains bumper-mounted 7-way for traditional trailer hookups.\u003c\/li\u003e\n  \u003cli\u003eFactory-style 7-way RV blade socket for easy trailer connection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this fit my Ford F-150, F-250 or F-350 Super Duty?\u003c\/h3\u003e\n\u003cp\u003eThe extension was created for specific model years of Ford F-150, F-250 Super Duty and F-350 Super Duty trucks—confirm compatibility with your vehicle's year and factory wiring before purchase. Fitment depends on OEM harness location and bed construction; check the application guide or vehicle manual for exact match information.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned to match OEM 7-way blade configurations used on select Ford trucks.\u003c\/li\u003e\n  \u003cli\u003eVerify vehicle model year and OEM harness style for proper fit.\u003c\/li\u003e\n  \u003cli\u003eInstallation typically requires routing through an existing body opening.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does it protect aluminum truck beds from galvanic corrosion?\u003c\/h3\u003e\n\u003cp\u003eAluminum beds can react when steel fasteners and wiring contacts touch untreated surfaces. CURT includes isolators and plastic well nuts to separate hardware from the aluminum, preventing finish damage and reducing corrosion risk when mounting the bed socket and fasteners.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes four plastic well nuts to isolate fasteners from aluminum surfaces.\u003c\/li\u003e\n  \u003cli\u003eFour mounting bolts supplied for secure attachment without direct metal contact.\u003c\/li\u003e\n  \u003cli\u003eIsolators keep electrical connections from contacting the bed metal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat functions does the 7-way connection provide for trailers?\u003c\/h3\u003e\n\u003cp\u003eThe 7-way RV blade carries standard trailer lighting circuits plus brake and auxiliary power, so your fifth-wheel or gooseneck trailer will receive the necessary signals for safe, compliant towing. It’s the common industry connector for larger trailers that need electric brakes and 12V power.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTail, brake, turn signal, and reverse light circuits carried on standard pins.\u003c\/li\u003e\n  \u003cli\u003eDedicated circuit for trailer electric brakes where equipped.\u003c\/li\u003e\n  \u003cli\u003eAuxiliary 12V power pin for trailer accessories or battery charging.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The CURT 57008 extension is aimed at pickup owners who tow fifth-wheel or gooseneck trailers and want a neat, factory-like bed connection without cutting into factory wiring. It's also a good choice for owners of aluminum-bed trucks who need hardware isolation to avoid galvanic corrosion. If you need a reliable 7-way bed-mounted socket that preserves the rear connection and simplifies hookup, this harness provides a durable, vehicle-specific solution.\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: Do I need to cut or splice my factory wiring to install this?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. The CURT 57008 is plug-and-play and connects directly to the OEM 7-way harness without cutting or splicing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this safe for aluminum truck beds?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The kit includes plastic well nuts and isolators to prevent galvanic corrosion on aluminum beds.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"CURT","offers":[{"title":"Default Title","offer_id":48081491165342,"sku":"B01DOA9LU2","price":184.93,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/curt-57008-front-connector-and-wiring.jpg?v=1785806357","url":"https:\/\/northtrailauto.ca\/products\/curt-7-way-trailer-wiring-harness-extension-7-ft-for-select-ford-f-150-f-250-f-350-bed-mounted-rv-blade-retains-rear-socket","provider":"North Trail Auto","version":"1.0","type":"link"}