Nilight 7-Way Trailer Socket Extension Cable 3 ft — Black Molded Housing with Double-Prong Copper Terminals

Nilight 50050R is a 3-foot, plug-and-play 7-way trailer socket extension with double-prong copper terminals designed to extend your vehicle’s 7-blade wiring quickly and securely.

When a trailer cord is just out of reach or you need a temporary wiring bridge between a tow vehicle and trailer, the Nilight 50050R solves the problem without splicing or permanent modifications. Built with 10–14 AWG wiring, a molded plastic housing and a spring-loaded dust cover, this extension offers a compact, durable way to connect 7-blade trailer systems, RVs, goosenecks and fifth wheels.

How does this extension connect to my truck and trailer?

The Nilight 50050R plugs directly into a standard 7-way RV-style blade receptacle on your tow vehicle and provides a matching 7-blade socket for the trailer plug. No tools or wire cutting are required when you use it as a temporary bridge between two existing connectors.

• 3-foot length for easy reach without excess cable drag
• Double-prong copper terminals for secure electrical contact
• Fits standard 7-blade trailer and RV connectors

Is the wiring durable enough for towing and outdoor use?

Yes—this extension is built for repeated use on the road. The socket is encased in molded black plastic to resist impact and weather, while the dust cover keeps moisture and debris from the contacts when unplugged.

• Molded housing reduces wear from knocks and movement
• Spring-loaded dust cap protects contacts from dirt and corrosion
• 10–14 AWG wiring balances flexibility with current capacity

Will installation change my vehicle’s wiring or require permanent modification?

No permanent installation is necessary—this product is intended as a plug-and-play extension. The double-prong copper terminals provide a tight connection without the need to rewire or add splices, making it ideal for temporary or seasonal use.

• No cutting or soldering required for typical extension use
• Double-prong terminals increase retention under vibration
• Removable at any time to restore original wiring layout

Which vehicles and trailer types are compatible with this connector?

The Nilight 50050R supports any vehicle or trailer that uses the common 7-blade blade-style wiring system. Its universal design works with trailers, RVs, goosenecks, fifth wheels, boats and most light- and medium-duty tow vehicles.

• Compatible with standard 7-blade RV and trailer plugs
• Works for cars, trucks, RVs, trailers, goosenecks and boats
• Suitable for short extension needs and on-the-road connections

Who this is for: The Nilight 50050R is a practical choice for drivers who need a short, reliable trailer wiring extension without altering factory wiring—towing hobbyists, seasonal RV owners, tradespeople who switch trailers often, and anyone who needs a quick, durable bridge between a vehicle’s 7-way socket and a trailer plug. It’s especially useful when trailer cords are slightly too short or you prefer a removable, serviceable connection protected by a dust cover.