{"product_id":"oyviny-4-pin-trailer-wiring-harness-for-2007-2018-jeep-wrangler-jk-jku-16awg-copper-plug-and-play","title":"Oyviny 4-Pin Trailer Wiring Harness for 2007–2018 Jeep Wrangler JK\/JKU — 16AWG Copper, Plug-and-Play","description":"\u003cp\u003e\u003cb\u003eOyviny 4-pin trailer wiring harness delivers a plug-and-play electrical connection that powers trailer lights for 2007–2018 Jeep Wrangler JK and JKU models without cutting or splicing.\u003c\/b\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis harness is engineered specifically for Jeep Wrangler JK and JKU vehicles (2007–2018), including Sahara, Rubicon, Unlimited and Sport trims, and fits both 2-door and 4-door models. It uses a standard 4-pin flat connector to transmit turn signals, tail lights and brake lights from the tow vehicle to the trailer. Built with 16AWG pure copper wires, ABS connector housing and a protective nylon loom, the assembly balances reliable conductivity with long-term durability for towing boats, ATVs, utility trailers and small campers.\u003c\/p\u003e\n\n\u003ch3\u003eHow simple is installation on a Jeep Wrangler JK?\u003c\/h3\u003e\n\u003cp\u003eInstallation is designed to be tool-light and fast: the harness plugs directly into the factory trailer sockets with no wire cutting, splicing or vehicle modifications required. This makes it suitable for DIY installation or quick professional fitment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect plug-and-play connection to factory sockets — no wiring changes.\u003c\/li\u003e\n  \u003cli\u003eStandard 4-pin flat plug compatible with common trailer connectors.\u003c\/li\u003e\n  \u003cli\u003eIncludes rubber dust cover to protect the vehicle socket when unused.\u003c\/li\u003e\n  \u003cli\u003e74-inch cable length provides flexibility routing to hitch-mounted sockets.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat does the 4-pin harness actually power on the trailer?\u003c\/h3\u003e\n\u003cp\u003eThe 4-pin configuration supplies the fundamental lighting functions needed for legal towing: tail\/parking lights, left and right turn signals, and brake lights. It does not carry auxiliary power or reverse\/charging circuits used by larger trailers or RVs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTail and parking light circuit for night visibility.\u003c\/li\u003e\n  \u003cli\u003eLeft and right turn signal circuits for lane changes and turns.\u003c\/li\u003e\n  \u003cli\u003eBrake light circuit synchronized with vehicle braking.\u003c\/li\u003e\n  \u003cli\u003eNot intended for trailer battery charging or 12V accessory feed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy does wire gauge and materials matter for towing harnesses?\u003c\/h3\u003e\n\u003cp\u003eWire gauge and conductor quality determine conductivity and durability under load and motion. The Oyviny harness uses 16AWG pure copper conductors for reliable electrical transfer and a consistent signal to trailer lighting components.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e16AWG pure copper wires for efficient current flow and corrosion resistance.\u003c\/li\u003e\n  \u003cli\u003eBlack nylon wire loom bundles and shields wires from abrasion and road debris.\u003c\/li\u003e\n  \u003cli\u003eABS plastic connector housing resists impact and weather exposure.\u003c\/li\u003e\n  \u003cli\u003eRubber dust cover prevents moisture and dirt ingress when idle.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this harness work with my trailer type?\u003c\/h3\u003e\n\u003cp\u003eThe 4-pin flat connector is one of the most common trailer plugs and suits small to medium trailers that require only lighting circuits. It pairs well with boat trailers, utility trailers, ATV haulers and many small campers.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with most boat, utility and ATV trailers using 4-pin flat connectors.\u003c\/li\u003e\n  \u003cli\u003eNot suitable for trailers needing 7-pin auxiliary, electric brakes or battery charging.\u003c\/li\u003e\n  \u003cli\u003e74-inch cable length helps accommodate various hitch setups and trailer socket placements.\u003c\/li\u003e\n  \u003cli\u003eDesigned to work with both 2-door and 4-door Jeep Wrangler JK\/JKU models.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Oyviny 4-pin trailer wiring harness is intended for Jeep Wrangler JK and JKU owners (2007–2018) who need a durable, no-fuss method to transmit lighting signals to a trailer. It’s ideal for weekend boaters, utility haulers, ATV transporters and owners of small campers who require a dependable lighting connection without complex wiring. Choose this harness when you want a factory-friendly, corrosion-resistant wiring solution that keeps trailer lights functioning and visible on the road.\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 harness fit my 2015 Jeep Wrangler Rubicon?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the Oyviny harness is compatible with 2007–2018 Wrangler JK and JKU models, including Rubicon trims and both 2-door and 4-door variants.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does it provide power for trailer brakes or charging?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No — the 4-pin flat connector only carries lighting circuits (tail, turn, brake); it doesn’t supply brake control or battery charging.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Oyviny","offers":[{"title":"Default Title","offer_id":48085893611678,"sku":"B0948B3TP9","price":48.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/oyviny-front-connector-plug.jpg?v=1785879834","url":"https:\/\/northtrailauto.ca\/products\/oyviny-4-pin-trailer-wiring-harness-for-2007-2018-jeep-wrangler-jk-jku-16awg-copper-plug-and-play","provider":"North Trail Auto","version":"1.0","type":"link"}