Spiral 7-Pin Trailer Cable (up to 5m) – Coiled Extension with Plug & Socket

The coiled 7-pin trailer extension cable is designed to add flexibility and tidiness to your trailer wiring. The spiral design allows the cable to stretch when needed up to around 4.5–5 meters (depending on the model), then automatically retract when the distance closes. This prevents the danger of cables dragging on the road or getting tangled around the trailer tongue. The cable comes fitted with a standard 7-pin male plug on one end and a 7-pin female socket on the other, making it fully compatible with any 12V trailer system – simply plug it in and go.

Key features:

• Keeps things tidy: When the trailer is attached and aligned straight, the coiled cable stays neatly contracted between the vehicle and trailer without sagging. During sharp turns or maneuvers, the cable smoothly extends to provide the necessary slack, then springs back once the tension is reduced. This minimizes wear and the risk of the cable snagging or getting cut on the road.
• Durable elastic material: Typically made of polyurethane (PU), this cable withstands repeated stretching and contracting. PU material is known for retaining its shape and resisting cracking, even in cold temperatures. It’s also UV-resistant, so sunlight won’t easily damage or embrittle it over time.
• Standard electrical capacity: The 7 cores inside are gauged to handle the current for trailer lights (commonly 12V systems up to 10-15A per circuit). This ensures reliable operation of all lights – turn signals, brakes, tail lamps – without voltage drop. The cable can also be used with 24V setups (such as on trucks) since the insulation and contacts are designed for either voltage.
• Ready-to-use connectors: The cable’s ends come with factory-installed 7-pin connectors. These are standard Euro connectors: the male plug goes into your vehicle’s trailer socket, and the female socket attaches to your trailer’s plug. The connectors have secure spring contacts to maintain a firm connection without flicker. When not in use, you can easily disconnect and stow the cable, and its coiled shape means it doesn’t tangle or take up much space.
• Recommended applications: The spiral cable is especially handy for boat trailers, where you often remove the entire light board – the coil makes it simple to connect the board when in place and won’t drag when the board is removed. It’s also excellent for trailers with longer tongues or specialized trailers where a straight cable would be too long and cumbersome. In the trucking and agricultural field, coiled cables are the standard for connecting lights and ABS between tractor units and trailers because they ensure orderliness and reliability.

By using this coiled cable, you get the best of both worlds – length when you need it and neatness when you don’t need the full length. This not only makes towing safer (no loose or dragging wires) but also extends the life of the cable and connectors, as they are less exposed to mechanical wear. Whether you’re towing a caravan, a powerboat, or a utility trailer, a spiral 7-pin cable gives you confidence that your electrical link will remain secure and uninterrupted under all driving conditions.