{"product_id":"oyviny-4-pin-trailer-wiring-harness-for-jeep-wrangler-jl-jlu-gladiator-jt-2018-2025-pure-copper-sealed-converter","title":"Oyviny 4-Pin Trailer Wiring Harness for Jeep Wrangler JL\/JLU \u0026 Gladiator JT (2018–2025) — Pure Copper, Sealed Converter","description":"\u003cp\u003e\u003cstrong\u003eOyviny 56407 is a plug-and-play 4-pin trailer wiring harness engineered to connect your 2018–2025 Jeep Wrangler (JL\/JLU) or 2020–2025 Jeep Gladiator (JT) to trailer lighting using 100% pure copper conductors and a sealed, durable converter.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis harness provides a straightforward, OEM-style electrical interface between your Jeep and a small trailer, boat, ATV carrier, or camper. Designed to match factory sockets on Sahara, Sport, Rubicon and Unlimited variants, the harness routes tail, stop, and turn signals from the vehicle to the trailer through a standard flat four-pin connector. The assembly uses corrosion-resistant materials and a surface-mount converter to maintain bright, reliable trailer lighting with minimal heat generation.\u003c\/p\u003e\n\n\u003ch3\u003eHow simple is installation on my Jeep Wrangler or Gladiator?\u003c\/h3\u003e\n\u003cp\u003eInstallation is intended to be quick and tool-minimal: the harness plugs into existing vehicle sockets without cutting, splicing, or tapping into factory wiring. It’s a true plug-and-play option for owners who want a clean, reversible installation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect-fit connectors match OEM trailer wiring ports\u003c\/li\u003e\n  \u003cli\u003eNo wiring modification required for compatible Jeep models\u003c\/li\u003e\n  \u003cli\u003eIncluded dust caps protect unused plugs from moisture and dirt\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich lighting functions does the 4-pin connector support?\u003c\/h3\u003e\n\u003cp\u003eThe 4-pin flat connector carries essential lighting circuits only — tail\/running lights, left and right turn signals, and brake lights. It’s the standard solution for most small trailers and utility loads that do not require auxiliary power or electric brakes.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTail\/running lights and illumination\u003c\/li\u003e\n  \u003cli\u003eBrake light output synchronized with vehicle brakes\u003c\/li\u003e\n  \u003cli\u003eSeparate left and right turn signal circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and technologies are used to ensure durability?\u003c\/h3\u003e\n\u003cp\u003eOyviny builds the harness with robust, weather-resistant components: ABS housings, sealed epoxy for the converter, and 100% pure copper wiring for low-resistance electrical paths. Surface-mount technology in the converter helps maintain light intensity while dissipating minimal heat.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePure copper conductors for consistent conductivity\u003c\/li\u003e\n  \u003cli\u003eABS and sealed enclosures for corrosion and moisture protection\u003c\/li\u003e\n  \u003cli\u003eDust covers on the plug and fuse holder to keep contacts clean\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this harness work with my trailer type and towing needs?\u003c\/h3\u003e\n\u003cp\u003eThe 4-pin format is compatible with a broad range of small towables including boat trailers, ATV trailers, utility trailers, and small campers. If your trailer requires battery charging, reverse lamps, or electric brakes, you’ll need a 6- or 7-pin solution instead.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIdeal for boat, ATV, utility trailers and small campers\u003c\/li\u003e\n  \u003cli\u003eNot intended for trailers needing electric brake control or 12V power feed\u003c\/li\u003e\n  \u003cli\u003eMeets common towing lighting needs for everyday hauling\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Oyviny 56407 harness suits Jeep owners who tow small trailers and want a reliable, factory-compatible connection without modifying their vehicle wiring. It's geared toward drivers of 2018–2025 Jeep Wrangler JL\/JLU (2- and 4-door variants, including Sahara, Sport, Rubicon and Unlimited trims) and 2020–2025 Gladiator JT models seeking straightforward installation, corrosion resistance, and stable trailer lighting performance for routine towing tasks.\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 harness require cutting factory wires?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No — the Oyviny 56407 is plug-and-play and connects to existing factory sockets without cutting.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this support electric trailer brakes or auxiliary power?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No — the 4-pin harness only supplies lighting circuits; electric brakes or 12V auxiliary needs require a 6- or 7-pin harness.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Oyviny","offers":[{"title":"Default Title","offer_id":48084071612574,"sku":"B09X1CZS76","price":79.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/oyviny-56407-front-connector.jpg?v=1785845402","url":"https:\/\/northtrailauto.ca\/products\/oyviny-4-pin-trailer-wiring-harness-for-jeep-wrangler-jl-jlu-gladiator-jt-2018-2025-pure-copper-sealed-converter","provider":"North Trail Auto","version":"1.0","type":"link"}