Oyviny Dual-Output 4-Way to 7-Way Trailer Wiring Harness Adapter with Mounting Bracket

Overview

The Oyviny Dual-Output Trailer Wiring Harness Adapter is designed to bridge mismatched vehicle and trailer sockets with seamless ease. It combines a 4-pin flat and a 7-pin round blade in a single unit, so you can connect to multiple trailers without swapping connectors. With thoughtful construction and practical flexibility, this adapter helps you simplify tow setups while keeping wiring organized and protected.

Versatility for 4-Pin and 7-Pin Trailers

Whether you’re towing a light utility trailer or a larger RV, this adapter supports standard 4-pin and 7-pin configurations. It also adds separate leads for reverse, brake, and power functions, enabling a straightforward conversion from a 4-pin factory socket to a standard 7-way system. This versatility can be especially helpful when you switch between trailers that use different connector standards.

Durable, Reliable Construction

• Durable ABS plastic housing protects the wiring and maintains a clean look under the hitch.
• Pure copper conductors deliver solid conductivity across all connections for dependable signals.
• The 4-pin path uses 18 AWG conductors, while the additional pigtail wires and ground use 14 AWG for robust performance.
• A black wire loom provides added protection for the wiring, reducing wear from movement and exposure.
• Dust covers on both the 4-pin and 7-pin outputs help guard against dust and corrosion during use and storage.

Easy Installation and Quick Use

Designed for a snug, secure fit, the adapter snaps into the trailer’s existing socket with minimal effort. A mounting bracket, screws, and nuts are included, so you can mount it on a truck or RV for a tidy, dependable setup. With standard 4 and 7 pin connectors, you can expect straightforward compatibility with many towing configurations.

Practical Benefits at a Glance

• One unit supports both 4-pin and 7-pin trailer connections for versatile towing.
• Separate leads for reverse, brake, and power functions provide flexible adaptation across trailers.
• Protective housing and loom maximize durability in road use and weather exposure.
• Included mounting hardware enables quick, tool-friendly installation.

Note that while the adapter can enhance compatibility and simplify wiring across trailers, results may vary depending on vehicle and trailer configurations. Consider your towing needs and trailer types to determine if this dual-output adapter aligns with your setup.