Oyviny Custom 4 Way Trailer Wiring Harness for Ford Explorer - Plug

Our review of the Oyviny Custom 4 Way Trailer Wiring Harness finds it is a straightforward, vehicle-specific solution for Ford Explorer owners from 2011 through 2019 who want a no-fuss way to power trailer lights. The single biggest reason to choose this harness is the simple plug and play design that requires no cutting or splicing, letting a competent DIYer or a technician have a working 4-flat connector in minutes. Fit and function are the focus here: the harness matches factory wiring, provides a standard 4 way flat connector, and uses corrosion-resistant materials for reliable trailer lighting.

Key Features

• Vehicle-specific fit: Designed to match Ford Explorer models 2011-2019 so the custom connector plugs directly into the factory harness for a clean installation.
• Standard 4 way plug: Supplies a 4-flat trailer connector at the vehicle rear to power tail lights, brake lights and turn signals on most small trailers and utility trailers.
• Durable construction: Corrosion-resistant 4 pin connector and premium tin-plated copper terminals help maintain good electrical contact over time.
• Pure copper wiring: Pure copper wires deliver reliable conductivity for trailer lighting circuits and reduce voltage drop under load.
• Protected wiring loom: Black nylon wire loom keeps the bundle neat and resists abrasion, which helps extend service life in under-vehicle routing.
• Weather protection: Rubber dust cover for the socket helps keep water and dirt out when the connector is not in use.

Who It's For

This harness is aimed at Ford Explorer owners from model years 2011 through 2019 who tow trailers with a standard 4-flat connection and who want a factory-like install without cutting or splicing vehicle wiring. It suits weekend haulers, small utility trailer users, and anyone who prefers a tidy under-bumper mount rather than makeshift wiring.

Those who need a multi-function adapter, 7-pin towing with active braking or heavy RV-grade wiring should look elsewhere; this product provides a standard 4-way flat connector for lighting circuits only, not expanded power or braking circuits.

Pros & Cons

Pros

• Easy plug and play installation that connects to the factory harness without modifications.
• Good fit for specified Explorer model years, resulting in a neat, OEM-style install.
• Solid materials: pure copper wires and tin-plated terminals aid conductivity and longevity.
• Includes a rubber dust cover and nylon loom for protection against moisture and abrasion.

Cons

• Length is fixed at 78 in which is ample for many installs but may require routing consideration on some setups.
• Provides only a 4-flat connection, so it is not suitable for trailers needing a 7-pin or additional power circuits.

Specifications

Compatible Vehicles	Ford Explorer 2011-2019
Connector Type	Standard 4 way flat
Wire Length	78 in
Conductor Material	Pure copper wires with tin-plated copper terminals
Protection	Black nylon wire loom and rubber dust cover
Installation	Plug and play, no cutting or splicing

Our Verdict

The Oyviny 4 Way Trailer Wiring Harness is a practical, cost-effective choice for Ford Explorer owners who need a reliable 4-flat trailer connection with minimal installation effort. Its vehicle-specific fit, solid conductivity from pure copper wiring, and protective features deliver good value for routine towing needs; pick a different product only if you require expanded 7-pin functions or heavy-duty towing circuits.

Frequently Asked Questions

Will this fit my Explorer?
It fits Ford Explorer model years 2011 through 2019 as specified and plugs into the factory harness for those vehicles.

Do I need to splice any wires?
No, the harness is designed for plug and play installation and does not require cutting or splicing the vehicle wiring.

Does it include weather protection?
Yes, the socket has a rubber dust cover and the wiring is bundled in a black nylon loom to resist moisture and abrasion.