{"product_id":"gledewen-7-pin-trailer-wiring-harness-7ft-bed-extension-7-way-rv-socket-no-splice-install-1997-2021-trucks","title":"Gledewen 7-Pin Trailer Wiring Harness, 7ft Bed Extension — 7-Way RV Socket, No-Splice Install (1997–2021 Trucks)","description":"\u003cp\u003e\u003cstrong\u003eThe Gledewen 7-pin trailer wiring harness kit is a 7-foot extension that adds a second 7-way RV socket in your truck bed so you can tow fifth-wheel and gooseneck trailers without cutting or splicing factory wires.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf you tow trailers with a pickup, simple access to a 7-way connector in the bed makes hooking up easier and safer. This kit is engineered to plug into your truck’s existing factory trailer connector, extending the OEM socket to the truck bed while preserving the original rear harness. It’s compatible with many full-size trucks from 1997–2021, including Ford F-Series, GM Sierras and Chevys, Ram, Nissan Titan and Toyota Tundra models listed below.\u003c\/p\u003e\n\n\u003ch3\u003eWill this harness fit my truck model and years?\u003c\/h3\u003e\n\n\u003cp\u003eThe extension is designed to match the factory tow wiring on many common pickups; compatibility is provided by model and year ranges and exact part numbers (56070, 55415). Before buying, confirm compatibility by matching your vehicle year, make, model and engine size, or send your vehicle photo to the seller for verification.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFits many Ford F-150\/F-250\/F-350\/F-450\/F-550 model years listed (1997–2021 ranges).\u003c\/li\u003e\n  \u003cli\u003eCompatible with GMC Sierra and Chevrolet Silverado full-size trucks across 1999–2021 ranges.\u003c\/li\u003e\n  \u003cli\u003eAlso fits Ram (2009–2021 ranges), Nissan Titan (2004–2021 ranges), and Toyota Tundra (2010–2021).\u003c\/li\u003e\n  \u003cli\u003eCheck precise fit part numbers 56070 and 55415 to confirm vehicle match.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install the 7-foot extension harness?\u003c\/h3\u003e\n\n\u003cp\u003eInstallation is straightforward if you have basic hand tools and a 2-1\/8-inch hole saw. The harness plugs into the factory connector—no splicing—then you secure the new 7-way socket in the truck bed with the supplied mounting holes and organize the cable with straps.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDrill a 2-1\/8\" hole at the chosen truck-bed mounting location.\u003c\/li\u003e\n  \u003cli\u003eLay out the harness, connect to factory parking\/turn signal connector.\u003c\/li\u003e\n  \u003cli\u003eDrill and use four 7\/64\" screws to secure the 7-way connector flange.\u003c\/li\u003e\n  \u003cli\u003eTidy wiring with grab straps and finalize routing for protection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat signals and trailer functions does the extension support?\u003c\/h3\u003e\n\n\u003cp\u003eThis 7-pin extension preserves all common RV and trailer circuits so you can power taillights, turn signals, trailer brakes and auxiliary 12V power from the bed-mounted socket. The design minimizes electrical resistance to reduce voltage drop and protect components over time.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eSupports brake lights, turn signals and reverse lights.\u003c\/li\u003e\n  \u003cli\u003eProvides electric trailer brake control circuit and auxiliary power.\u003c\/li\u003e\n  \u003cli\u003eHigh-quality conductors reduce heat and voltage loss during towing.\u003c\/li\u003e\n  \u003cli\u003eDurable outer wrap offers corrosion, water and abrasion resistance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat quality and warranty protections come with this harness?\u003c\/h3\u003e\n\n\u003cp\u003eGledewen builds the extension from robust materials with heat- and chemical-resistant jacketing to withstand under-bed conditions. The kit is made by an ISO-certified manufacturer and includes a 24-month warranty against defects, so you can replace or repair within that period if problems arise.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eISO-certified manufacturing and factory-matched connectors for plug-and-play use.\u003c\/li\u003e\n  \u003cli\u003eWrapped plastic sheathing resists heat, chemicals, corrosion and wear.\u003c\/li\u003e\n  \u003cli\u003e7-foot length gives flexible mounting options inside the bed.\u003c\/li\u003e\n  \u003cli\u003e24-month warranty and direct seller support for issues or installation questions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Gledewen 7-pin trailer wiring harness extension is for pickup owners who tow fifth-wheel or gooseneck trailers and want a convenient, factory-compatible 7-way socket in the truck bed. It suits DIY installers with basic tools, fleet vehicles that need a durable bed-mounted connector, and anyone who wants to avoid cutting or splicing factory wiring while retaining full trailer function support. If you’re unsure about fit, provide your vehicle YEAR, MAKE, MODEL and ENGINE SIZE or send a photo to confirm compatibility before purchase.\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: Does this kit require splicing into factory wiring?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. The Gledewen extension plugs into the factory trailer connector—no cutting or splicing required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What if I'm not sure it fits my truck?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Send your vehicle YEAR, MAKE, MODEL and ENGINE SIZE or a photo to the seller before purchase to confirm compatibility.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Gledewen","offers":[{"title":"Default Title","offer_id":48085878866078,"sku":"B09ZV6WNWK","price":45.34,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/gledewen-front-connector-mounted.jpg?v=1785879099","url":"https:\/\/northtrailauto.ca\/products\/gledewen-7-pin-trailer-wiring-harness-7ft-bed-extension-7-way-rv-socket-no-splice-install-1997-2021-trucks","provider":"North Trail Auto","version":"1.0","type":"link"}