{"product_id":"nilight-7-way-inline-trailer-wiring-harness-with-7-gang-junction-box-12ft-pvc-cable-weather-resistant","title":"Nilight 7-Way Inline Trailer Wiring Harness with 7-Gang Junction Box — 12ft PVC Cable, Weather-Resistant","description":"\u003cstrong\u003eNilight's Heavy Duty 7-Way Inline Trailer Plug with 7-Gang Junction Box is a weather-resistant 12-foot trailer wiring harness that centralizes all seven circuits for lights and auxiliary power into a single, durable connector.\u003c\/strong\u003e\n\nThis inline harness is built to simplify trailer wiring by combining seven copper-blade connections into a single molded plug and a clearly labeled junction box. The assembly is engineered to resist dust, water, and corrosion while giving installers a tidy, accessible location to route and identify each circuit—left\/right turn, brake, running, reverse, and auxiliary. With 12 feet of flexible PVC-covered cable and multiple gasket options, it’s designed to fit a variety of towing setups without putting strain on the wiring during turns or maneuvers.\n\n\u003ch3\u003eHow does this harness make trailer wiring easier?\u003c\/h3\u003e\n\u003cp\u003eThe integrated junction box groups all seven circuits in one place and uses color-marked poles for fast identification, reducing guesswork when installing or troubleshooting. The molded plug keeps the blades aligned and protected, making connection quick and repeatable.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eColor-marked 7-pole junction for clear circuit identification\u003c\/li\u003e\n  \u003cli\u003eMolded copper-blade 7-way plug for secure electrical contact\u003c\/li\u003e\n  \u003cli\u003eSingle harness replaces multiple loose wires for neater routing\u003c\/li\u003e\n  \u003cli\u003e12-foot length reduces tension and allows flexible mounting options\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat weather and durability protections are included?\u003c\/h3\u003e\n\u003cp\u003eThe junction box can be sealed with either open or closed rubber gaskets to match your wiring needs; this lets you configure a fully sealed box or leave ventilation options when required. The cable jacket uses flexible PVC that resists abrasion and the internal copper blades are protected by the molded housing to minimize corrosion risk.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFour open and four closed rubber gaskets included to choose sealing level\u003c\/li\u003e\n  \u003cli\u003eWaterproof and dust-resistant junction when sealed properly\u003c\/li\u003e\n  \u003cli\u003ePVC-sheathed cord for abrasion resistance and flexibility\u003c\/li\u003e\n  \u003cli\u003eMolded plug reduces exposure of metal contacts to the elements\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this fit my trailer and how does installation work?\u003c\/h3\u003e\n\u003cp\u003eThe harness is universal by design and intended to work with standard 7-way trailer systems used across many trailers and towing vehicles. Installation typically involves mounting the junction box in an accessible spot, routing the wires to the trailer lights, and using the color-coded poles and copper blades to make each circuit connection.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUniversal fit for standard 7-way trailer wiring systems\u003c\/li\u003e\n  \u003cli\u003e12-foot cord gives extra reach for diverse mounting locations\u003c\/li\u003e\n  \u003cli\u003eColor-coded terminals speed up matching wires to lights and power\u003c\/li\u003e\n  \u003cli\u003eIncludes gaskets and hardware to create a sealed junction as needed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this harness improve reliability during towing?\u003c\/h3\u003e\n\u003cp\u003eThe longer, flexible cable reduces strain on the plug during tight turns or sudden movements, while the sealed junction option prevents moisture and dirt from degrading connections over time. Together, these features help preserve consistent electrical contact for lights and auxiliary circuits.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e12 ft cable prevents tugging and connector stress in turns\u003c\/li\u003e\n  \u003cli\u003eSealable junction box reduces corrosion and intermittent faults\u003c\/li\u003e\n  \u003cli\u003eMolded blade plug maintains alignment and secure mating\u003c\/li\u003e\n  \u003cli\u003eDurable PVC jacket withstands road wear and flexing\u003c\/li\u003e\n\u003c\/ul\u003e\n\nWho is this for\n\nThis Nilight 7-way inline trailer plug with a 7-gang junction box is aimed at trailer owners, DIY installers, and fleet maintenance technicians who want a tidy, durable, and serviceable wiring solution. It suits utility trailers, RVs, horse trailers, boat trailers, and any setup using standard 7-way wiring where a weather-resistant central junction and extra cable length will simplify installation and reduce future troubleshooting.\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the junction box waterproof?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—use the included closed rubber gaskets to create a waterproof junction; open gaskets are available for ventilation needs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will the 12 ft cord reach my trailer setup?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The 12-foot flexible PVC cord is designed for most trailer and tow-vehicle configurations to reduce strain and allow flexible mounting.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Nilight","offers":[{"title":"Default Title","offer_id":48079876325534,"sku":"B0CR74NGD9","price":67.69,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/nilight-front-7-way-plug.jpg?v=1785773916","url":"https:\/\/northtrailauto.ca\/products\/nilight-7-way-inline-trailer-wiring-harness-with-7-gang-junction-box-12ft-pvc-cable-weather-resistant","provider":"North Trail Auto","version":"1.0","type":"link"}