{"product_id":"nilight-4-way-trailer-wiring-harness-kit-56407-replacement-jeep","title":"Nilight 4-Way Trailer Wiring Harness Kit 56407 Replacement - Jeep","description":"\u003cp\u003eOur review of the Nilight 4-Way Trailer Wiring Harness Kit finds it best suited for Jeep owners who need a direct, dependable trailer wiring hookup without modifying factory wiring. The kit is a straightforward replacement for part 56407 and stands out because it combines a plug-and-play 4-pin connector with a protected converter module, making it a practical choice for towing tail lights, turn signals, and brake lights. For drivers of Wrangler JL and Gladiator models who want an OEM-like appearance and simpler installation, this harness delivers clear value.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a direct replacement for 56407 and specified for Wrangler JL 2018-2023 and Gladiator 2020-2023, it avoids fitment guessing for those models.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable construction:\u003c\/strong\u003e The plug and converter use high-strength ABS plastic, brass, and tin-plated terminals for improved conductivity and long-term wear resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-play installation:\u003c\/strong\u003e A standard 4-way trailer plug eliminates cutting or splicing and simplifies the install for most owners with basic tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCircuit protection:\u003c\/strong\u003e The HD converter board and smart chip reduce heat and stabilize output so trailer lights maintain consistent intensity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery powered operation:\u003c\/strong\u003e The kit requires a hot lead run to the vehicle battery for reliable 12v operation, ensuring the converter has stable power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeather resistance:\u003c\/strong\u003e A rubber dust cover protects the connector from dust, dirt, and rain, helping prevent corrosion and shorts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis harness is aimed at Jeep Wrangler JL owners from model years 2018 through 2023 and Jeep Gladiator owners from 2020 through 2023 who want a clean, OEM-style 4-way trailer connection without splicing into factory wiring. It is also a good match for DIYers comfortable running a single hot lead to the battery and following instructions or video guidance.\u003c\/p\u003e\n\u003cp\u003eOwners who need a different pin configuration, integrated brake controller wiring, or an adapter for rare aftermarket trailers should look elsewhere. Also, if you prefer a harness that draws power directly from tail circuits rather than a battery-fed converter, this specific kit may not match that preference.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEasy plug-and-play design reduces install time and avoids cutting factory wiring.\u003c\/li\u003e\n\u003cli\u003eSturdy materials and tin-plated terminals contribute to reliable conductivity and perceived build quality.\u003c\/li\u003e\n\u003cli\u003eConverter with upgraded circuit board maintains stable light output and limits heat.\u003c\/li\u003e\n\u003cli\u003eProtective rubber dust cover helps extend connector life in wet or dirty conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRequires running a hot lead to the battery, which adds one extra wiring step during installation.\u003c\/li\u003e\n\u003cli\u003eCompatibility is limited to specific Wrangler JL and Gladiator years, so it is not universal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eNilight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplacement for\u003c\/td\u003e\n\u003ctd\u003e56407\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible models\u003c\/td\u003e\n\u003ctd\u003eWrangler JL 2018-2023; Gladiator 2020-2023\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector\u003c\/td\u003e\n\u003ctd\u003eStandard 4-way trailer plug\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterials\u003c\/td\u003e\n\u003ctd\u003eABS plastic housing; brass and tin-plated terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection\u003c\/td\u003e\n\u003ctd\u003eRubber dust cover; HD converter with smart chip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower requirement\u003c\/td\u003e\n\u003ctd\u003e12v hot lead to vehicle battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Nilight 4-Way Trailer Wiring Harness Kit is a practical, cost-effective replacement for Jeep JL and Gladiator owners who need a factory-like 4-pin trailer hookup and straightforward installation. Its sturdy materials and upgraded converter provide reliable performance and weather protection, making it a sensible value buy for those willing to run the battery hot lead during install.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this harness plug-and-play?\u003c\/strong\u003e\u003cbr\u003eYes, the harness uses a standard 4-way plug and is designed to connect without cutting or splicing into factory wiring, though a hot lead to the battery is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich Jeep models does this fit?\u003c\/strong\u003e\u003cbr\u003eIt is specified for Jeep Wrangler JL model years 2018 through 2023 and Jeep Gladiator model years 2020 through 2023; verify your model year before buying.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the kit include corrosion protection?\u003c\/strong\u003e\u003cbr\u003eThe harness includes a rubber dust cover for the connector and uses tin-plated terminals to resist corrosion and extend service life.\u003c\/p\u003e","brand":"Nilight","offers":[{"title":"Default Title","offer_id":48204154470619,"sku":"B0C586F71H","price":54.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71gYS8g9lnL._AC_SL1500.jpg?v=1770356197","url":"https:\/\/gearmusthave.com\/products\/nilight-4-way-trailer-wiring-harness-kit-56407-replacement-jeep","provider":"GearMustHave","version":"1.0","type":"link"}