{"product_id":"mecmo-4-way-trailer-wiring-harness-4-pin-flat-20ft-18awg-pure-copper-weatherproof-jacket","title":"MECMO 4-Way Trailer Wiring Harness 4-Pin Flat 20ft – 18AWG Pure Copper, Weatherproof Jacket","description":"\u003cp\u003e\u003cstrong\u003eMECMO 4 Way Trailer End Connector Wire is a 20-foot, heavy-duty 4-pin flat trailer wiring harness with color-coded 18AWG pure copper conductors and a weatherproof molded jacket for reliable trailer-to-vehicle connections.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eInstall or replace your trailer wiring with a ready-to-splice harness designed for common trailers — boat, ATV, utility, motorcycle, and horse trailers. This MECMO 4-way flat male plug features a durable PVC jacket, four snap locks for secure attachment, and blunt-cut color-coded wires (yellow, green, brown, white) that match industry-standard wiring. At 20 feet, the length gives installers space to route and secure wires neatly without stretching or relying on temporary tape fixes.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this harness simplify trailer wiring repairs?\u003c\/h3\u003e\n\u003cp\u003eThe MECMO 4-way harness arrives ready to connect: a molded male flat plug plus blunt-cut wires so you can splice into an existing loom or replace damaged sections quickly. The colors follow the standard trailer code so matching signals is straightforward.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePre-molded male 4-pin flat plug eliminates assembly of terminals\u003c\/li\u003e\n  \u003cli\u003eBlunt-cut, color-coded wires ready for soldering or crimp splices\u003c\/li\u003e\n  \u003cli\u003eFour snap locks keep the plug seated in the trailer socket\u003c\/li\u003e\n  \u003cli\u003e20-foot length avoids extensions or risky joins\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat makes this connector durable for outdoor and marine use?\u003c\/h3\u003e\n\u003cp\u003eConstruction focuses on longevity: pure copper 18AWG conductors for consistent current flow and a thicker PVC jacket that resists water, abrasion, and UV exposure. The molded plug reduces water intrusion at the connection point compared with taped splices.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e18 AWG pure copper wiring for lower resistance and reliable signals\u003c\/li\u003e\n  \u003cli\u003eHigh-quality PVC jacket resists weather and physical wear\u003c\/li\u003e\n  \u003cli\u003eMolded housing reduces exposed metal and corrosion risk\u003c\/li\u003e\n  \u003cli\u003eSecure snap locks prevent accidental unplugging while towing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this fit my trailer and vehicle setup?\u003c\/h3\u003e\n\u003cp\u003eThis harness is built to the industry 4-way flat standard, so it fits most trailer-side sockets that accept a male 4-pin flat plug. It’s intended as trailer-side wiring; verify your vehicle uses a compatible 4-way flat socket or an adapter is available.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStandard 4-pin flat male plug fits common trailer sockets\u003c\/li\u003e\n  \u003cli\u003eColor-coded wires match industry wiring conventions for easy pairing\u003c\/li\u003e\n  \u003cli\u003e20-foot length offers flexibility for different trailer layouts\u003c\/li\u003e\n  \u003cli\u003eIdeal as a trailer-side replacement harness rather than vehicle-side OEM cable\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWho is this for?\u003c\/strong\u003e MECMO’s 4 Way Trailer End Connector Wire is for DIYers, mechanics, and fleet owners who need a dependable replacement or upgrade to taped wiring on trailers. It fits owners of boat trailers, utility and cargo trailers, ATVs, motorcycles, and horse trailers who want a weather-resistant, easy-to-install harness that simplifies splicing and improves long-term reliability.\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: Is this harness trailer-side or vehicle-side?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: This MECMO harness is designed as a trailer-side male 4-pin flat connector for splicing into trailer wiring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I cut and splice the wires to my trailer?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The blunt-cut, color-coded wires are ready for crimp, solder, or butt-splice connections following standard trailer wiring colors.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"MECMO","offers":[{"title":"Default Title","offer_id":48084591083678,"sku":"B0C7ZP4X6N","price":39.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/mecmo-front-view-molded-plug.jpg?v=1785860326","url":"https:\/\/northtrailauto.ca\/products\/mecmo-4-way-trailer-wiring-harness-4-pin-flat-20ft-18awg-pure-copper-weatherproof-jacket","provider":"North Trail Auto","version":"1.0","type":"link"}