{"product_id":"mecmo-oem-style-replacement-uscar-connector-wiring-harness","title":"MECMO OEM Style Replacement USCAR Connector Wiring Harness","description":"\u003cb\u003eMECMO's OEM-style USCAR 7-pin replacement harness is a universal truck-side pigtail that restores factory 7-way trailer connections for Ford, GM, Chevy, Dodge and other vehicles.\u003c\/b\u003e\n\nReplacing a damaged or corroded 7-way trailer connector doesn’t have to mean a full wiring overhaul. This MECMO USCAR 7-pin splice-in harness is a compact, ready-made solution that recreates the OE-style round 7-way socket used on many North American trucks. At roughly 16 inches long and built with color-coded, 14–16 AWG pure copper conductors inside a flexible protective loom, it’s designed for straightforward splicing into existing tow circuits or creating a clean multi-tow installation.\n\n\u003ch3\u003eHow does this harness replace a factory 7-way connector?\u003c\/h3\u003e\n\u003cp\u003eThe MECMO unit is a direct-fit USCAR-style socket that plugs into standard 7-wire trailer plugs and is intended to be hardwired into the vehicle side. It reproduces the same pin layout and function as many original equipment tow connectors, so the trailer sees the correct signals without module changes.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStandard USCAR 7-pin round socket matches OE pin configuration\u003c\/li\u003e\n  \u003cli\u003eAbout 16\" lead length for accessible splice points\u003c\/li\u003e\n  \u003cli\u003eColor-coded wires for quick identification during installation\u003c\/li\u003e\n  \u003cli\u003eHeat-shrink butt connectors included for reliable splices\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill it work with my truck make and model?\u003c\/h3\u003e\n\u003cp\u003eThis harness is built as a universal OEM-style replacement for vehicles that use the USCAR 7-way round connector. It’s commonly used to retrofit older GM trucks and to replace factory tow connectors on many Ford, Chevy, Dodge, Nissan and Toyota pickups, but compatibility depends on the vehicle’s tow-package wiring layout.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with most USCAR-style 7-way trailer plugs\u003c\/li\u003e\n  \u003cli\u003eFrequently used for GM 1999–2002 retrofits and modern OE-style systems\u003c\/li\u003e\n  \u003cli\u003eWorks for both domestic and many import multi-tow applications\u003c\/li\u003e\n  \u003cli\u003eRequires matching pin functions when splicing to vehicle wires\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat makes installation straightforward for DIYers and pros?\u003c\/h3\u003e\n\u003cp\u003eMECMO designed the harness for plug-and-splice replacement: color-coded conductors speed identification, shrink-wrap butt connectors give a sealed splice, and flexible loom tubing protects the wires where they route through the chassis. You’ll need basic tools and a volt meter to verify pin functions before finalizing connections.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eColor-coded wires reduce guesswork and wiring errors\u003c\/li\u003e\n  \u003cli\u003eIncluded heat-shrink butt connectors create durable splices\u003c\/li\u003e\n  \u003cli\u003eFlexible protective loom simplifies routing and abrasion resistance\u003c\/li\u003e\n  \u003cli\u003ePure copper 14–16 AWG conductors balance current capacity and flexibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable is this replacement connector under towing conditions?\u003c\/h3\u003e\n\u003cp\u003eThe harness uses full copper conductors and an outer plastic loom to resist vibration and wear common on trailer hitches. While not a sealed marine-grade assembly, the heat-shrink splices and robust socket body provide years of reliable service when installed correctly and kept clean of heavy corrosion.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePure copper wiring for consistent conductivity and lower heat\u003c\/li\u003e\n  \u003cli\u003eProtective loom tubing guards against chafing and road debris\u003c\/li\u003e\n  \u003cli\u003eHeat-shrink butt connectors improve moisture resistance at splices\u003c\/li\u003e\n  \u003cli\u003eOEM-style socket reduces intermittent connections from poor fits\u003c\/li\u003e\n\u003c\/ul\u003e\n\nWho is this for?\n\nIf you need a practical, low-cost replacement for a damaged factory 7-way trailer connector or you’re retrofitting a multi-tow setup, the MECMO USCAR 7-pin pigtail is aimed at vehicle owners, fleet technicians, and DIY mechanics. It’s especially useful for trucks that originally used the USCAR-style round 7-pin socket—offering a near-OEM fit, clear wire identification, and the splice hardware needed for a tidy install without rewiring an entire tow module.\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this harness to retrofit an older GMC truck?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It’s commonly used to retrofit older GMC trucks that accept a USCAR-style 7-way socket; verify pin functions before final splicing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are the splices weather-resistant?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The included heat-shrink butt connectors improve moisture resistance, but additional sealing or dielectric grease is recommended in harsh environments.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"MECMO","offers":[{"title":"Default Title","offer_id":48087053402270,"sku":"B0B1ZF56Y2","price":31.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/mecmo-front-view-uscar-7-pin-socket.jpg?v=1785915527","url":"https:\/\/northtrailauto.ca\/products\/mecmo-oem-style-replacement-uscar-connector-wiring-harness","provider":"North Trail Auto","version":"1.0","type":"link"}