Oyviny 7-Way Round to 5-Way Flat Trailer Plug Adapter — Coiled 5 ft Cable, Brass Terminals

If you tow different trailers or switch between RV-style 7-pin sockets and legacy 5-pin flat plugs, this coiled wiring adapter simplifies connections without splicing or complicated wiring. Built with brass terminals and pure copper conductors, the cable prioritizes reliable electrical contact for running lights, turn/brake signals, reverse lights and ground. The coiled design keeps slack off the road while stretching for tighter turns, and the molded 7-way socket includes two grip hooks for easier handling.

How does this adapter handle tight turns and trailer movement?

The coiled construction stores extra length in a compact form, so the wire won’t drag or snag when not stretched. During towing the coil extends smoothly to provide up to the usable length you need for maneuvers, then retracts to avoid road wear and tangles.

• Coiled cord stretches as required and retracts for clean storage
• Designed to reduce dragging and snagging under load
• Durable jacket resists abrasion and weather exposure
• Recommended usable stretch about 36 inches for typical setups

What electrical circuits and materials are used in this adapter?

The adapter carries five essential circuits: ground, running lights, left turn/brake, right turn/brake and reverse lights. Brass terminals paired with pure copper wiring deliver low-resistance contacts for consistent signal transfer and reduced corrosion risk compared with lower-quality metals.

• Brass terminal pins for reliable contact and corrosion resistance
• Pure copper conductors for efficient current flow
• Molded connectors that eliminate exposed wiring and solder joints
• Plug-and-play design requires no splicing or additional tools

Is installation straightforward and compatible with my vehicle or trailer?

Yes — the adapter plugs directly into a standard 7-pin blade socket on your tow vehicle and accepts a 5-pin flat trailer plug. The molded 7-way socket includes two grip hooks so you can insert and remove the connector easily, streamlining daily hookup and removal.

• Ready to use out of the box — no cutting, crimping, or wiring needed
• 7-pin blade vehicle side to 5-pin flat trailer side compatibility
• Ergonomic hooks on the 7-way housing for improved grip
• Confirm required usable length (approx. 36 inches) before purchase

How long is the cable and what should I expect from its length?

The adapter is manufactured with an overall coiled length that extends to about 5 feet (60 inches) when fully stretched. In practical towing situations the recommended usable extension is roughly 36 inches, which suits most standard hitch distances and tight-turn requirements.

• Manufacturer-stated full extension: 60 inches (coiled measurement)
• Typical usable stretch while towing: about 36 inches
• Coiled design helps prevent excess slack on the road
• Measure your vehicle-to-trailer gap to confirm fit before ordering

Who is this adapter for? Tow vehicle owners who need quick compatibility between modern 7-pin blade sockets and older or specialized 5-pin flat trailers will benefit most. It's well suited for RV owners, pickup truck drivers, landscapers with utility trailers, and anyone who frequently swaps trailers and wants a durable, plug-and-play solution without modifying existing wiring. If you require longer continuous reach or additional circuits (like charging or auxiliary power), consider a different adapter or a hardwired conversion to match those needs.