Oyviny USCAR 7-Pin Trailer Connector Wiring Harness 16-Inch OEM-Style — 12–16 AWG Pure Copper, Nylon Flex Tubing

Oyviny's 16-inch USCAR 7-pin replacement harness is an OEM-style trailer socket pigtail that restores full 7-way trailer wiring for Ford, GM, Chevy, Dodge Ram and other compatible trucks.

This OEM-style USCAR 7-pin socket pigtail from Oyviny replaces a damaged or missing vehicle-side harness and returns power to trailer lights, turn signals, brakes, reverse lights and auxiliary battery feed. Built with 12–16 AWG pure copper conductors, tin-plated brass terminals and a protective nylon flex tubing, this harness is designed for dependable conductivity and easier installation when splicing into factory wiring. The connector follows USCAR 7-way wiring conventions and includes six nylon terminal connectors to speed up splice-in hookups.

How does this harness restore trailer lighting and power?

It provides a vehicle-side female USCAR socket that mates with a standard USCAR male trailer plug, re-establishing the seven circuits required for multi-function towing. Each wire is color-coded for straightforward identification during splicing, and the included terminals help make secure connections to your truck's factory wiring.

• 7-way USCAR female socket matches common trailer plugs
• Color-coded 12–16 AWG pure copper conductors for each circuit
• Tin-plated brass terminals resist corrosion and improve contact
• Six nylon terminal connectors included for quick splice-in

What makes the Oyviny wiring harness durable for road use?

This pigtail uses a nylon flex tubing (loom) that shields wires from abrasion and moisture, and the copper conductors paired with tin-plated terminals deliver consistent electrical performance over time. The 16-inch lead is long enough for typical mounting locations while keeping wiring tidy and protected.

• Nylon wire loom prevents chafing and environmental wear
• Pure copper wiring for low-resistance power delivery
• Tin-plated brass terminals for corrosion resistance
• Factory-compatible connector shape and retention for secure fit

How easy is installation for DIYers or in-shop mechanics?

This harness is designed for splice-in replacement: strip, crimp or solder, and seal your connections to integrate with existing vehicle wiring. The color-coded wires and included nylon terminal connectors make matching circuits and securing connections faster, even when you’re working under the vehicle or in tight harness channels.

• Standard USCAR pinout simplifies circuit matching
• Color-coded wires reduce guesswork during splicing
• Includes six terminal connectors to speed assembly
• 16-inch length gives room to route and fasten to chassis

Will this fit my truck model and aftermarket trailers?

The connector follows USCAR 7-way vehicle-side specifications common to many Ford, GM, Chevy, Dodge Ram and other makes that use the USCAR socket format. Confirm your vehicle uses a USCAR 7-pin socket or OEM-style pigtail before purchase; this harness replaces vehicle-side sockets rather than trailer-side plugs.

• Compatible with vehicles that accept a USCAR 7-pin female socket
• Works with trailers possessing a USCAR-style male plug
• Not a universal adapter—verify connector type first
• Best used as a vehicle-side replacement pigtail

Who is this for: This Oyviny USCAR 7-pin replacement harness is for vehicle owners and fleet technicians who need an OEM-style pigtail to restore seven-circuit trailer functionality. It suits DIY mechanics, trailer shops and anyone replacing a corroded or broken vehicle-side socket on compatible Ford, GM, Chevy, Dodge Ram and other USCAR-equipped trucks. Choose this harness when you want corrosion-resistant terminals, pure copper conductors, and a protected loom for long-lasting, splice-in trailer wiring repairs.