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

Oyviny USCAR 7-pin replacement wiring harness is an OEM-style 16-inch pigtail that restores a vehicle's 7-way USCAR trailer socket with heavy-gauge pure copper wiring and protected flex tubing.

This 7-way USCAR trailer connector by Oyviny is built as a direct-fit truck-side socket to replace damaged or missing vehicle harnesses on many Ford, GM, Chevy, Dodge Ram, Toyota and other models. The assembly uses 12 AWG and 16 AWG pure copper conductors, tin-plated brass terminals and a nylon wire loom to resist corrosion and abrasion. Designed for straightforward splice-in installation, it supplies power for taillights, turn signals, brakes, reverse lights and auxiliary circuits needed for trailers and towing accessories.

How does this harness match my vehicle's factory USCAR 7-way socket?

The Oyviny harness is manufactured to OEM-style USCAR dimensions so it plugs directly into standard vehicle-side male 7-way connectors. Color-coded wires follow common trailer-wiring conventions to make splicing into your vehicle wiring simple and reliable. Terminals are tin-plated brass for consistent electrical contact across weather exposure.

• OEM-style USCAR 7-pin socket profile for direct compatibility
• Color-coded wires for quick identification during splicing
• Tin-plated brass terminals to resist corrosion
• Fits many Ford, GM, Chevy, Dodge Ram, Toyota models

What materials and protection keep the connector durable?

Durability comes from a combination of pure copper conductors and a protective nylon flex tubing loom. The wiring uses 12 AWG for heavier circuits and 16 AWG for standard lighting circuits, giving both conductivity and mechanical strength. The nylon tubing helps shield wires from chafing, road debris and moisture, extending service life in towing environments.

• 12 AWG and 16 AWG pure copper conductors for strong conductivity
• Nylon wire loom for abrasion and moisture protection
• Durable molded socket housing resists impact and heat
• Compact 16-inch length for tidy routing behind bumpers

How easy is it to install and what tools or parts are included?

Installation is splice-in style: cut out the damaged harness or tie into existing wiring and crimp or solder the matching color-coded wires. The package includes six nylon terminal connectors to help secure the splices and provide a more finished connection. No special adapter is required when your vehicle uses a standard USCAR 7-way male plug.

• 16-inch pigtail length for convenient reach to wiring bundles
• Color-coded leads for each standard trailer circuit
• Six nylon terminal connectors included for splice security
• Compatible with common crimp, solder or butt-splice methods

What functions does the USCAR 7-pin support for towing setups?

The USCAR 7-pin socket provides power and signals required by most trailers: lighting circuits, auxiliary power, battery charge or supply, reverse and brake inputs depending on trailer wiring. The Oyviny harness brings those circuits back to your vehicle when the factory connector is damaged or removed, enabling safe and legal trailer lighting and accessory operation.

• Taillights, brake lights and turn signals carried on dedicated pins
• Auxiliary/12V feed for trailer power or battery charging
• Reverse and accessory circuits supported where applicable
• Designed for multi-tow applications on trucks and SUVs

Who this is for: vehicle owners and technicians who need a reliable, OEM-style 7-way USCAR socket replacement for trucks, SUVs and vans. It’s ideal for those restoring a factory wiring harness, repairing a damaged trailer connector, or upgrading to durable, corrosion-resistant materials. Choose Oyviny when you want a compact, serviceable 16-inch pigtail with pure copper conductors and protective loom for dependable towing electrical performance.