7 Pin to 7 Pin Trailer Extension Lead

This coiled 7-pin extension lead lets you run trailer or implement lighting further from the tow vehicle, with a 7-pin plug on each end so it drops straight between existing connections.

Coiled from roughly 0.65 m up to a full 4.5 m extended, it keeps slack out of the way when not stretched, and retracts once the trailer or implement is disconnected.

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Dimensions and installation

• Connector: 7-pin plug at both ends
• Coiled length: approx. 0.65 m
• Extended length: up to 4.5 m
• Wire gauge: 0.5 mm²

Tip: the coil naturally shortens back down when not stretched, so route it clear of moving parts like the drawbar or PTO before towing off.

Compatibility

Fits any trailer, caravan or implement using a standard 12V 7-pin connection at both ends.

If you’re unsure whether your setup uses a standard 7-pin plug, contact us before ordering.

Also suitable for other machines?

Yes — the standard 7-pin trailer connector is used across a wide range of trailers, caravans and farm implements, not just tractors. Contact us if you’re not sure your setup matches.

Why the coiled design and length range matter

Coiled design:
A coiled cable stays clear of the ground and moving parts during normal towing, only extending when the trailer or implement needs the extra reach, rather than dragging loose cable behind the machine.

0.65 m to 4.5 m range:
This range covers both close-coupled trailers and longer or offset implement setups, so one extension lead handles most jobs without needing a second, longer cable.

Frequently asked questions

Why choose this extension lead at Wattz?

We specialise in LED lighting for agricultural machinery and help you choose the right solution for your setup. Read our customer feedback on Google.

Keeping a coiled 7-pin extension on hand means an offset or longer trailer setup is never a wiring headache. Order today for a flexible, tidy way to extend your connection.