Tow Bar Electrics 7 Pin 12v N Type Socket and Plug - AB Tools

This AB Tools tow bar electrics set includes a 7-pin N-type metal plug and socket, suitable for ca...

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B&QB&Q - Tow Bar Electrics 7 Pin 12V N Type Metal Aluminium Socket & Plug Trailer Lights Car
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eBayTow Bar Electrics 7 pin 12v N Type METAL Aluminium Socket & Plug Trailer Lights
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Product Information

Full details

The AB Tools 7-Pin N-Type Tow Bar Electrics set is designed for DIY enthusiasts and vehicle owners who need a reliable electrical interface for caravans and trailers. This set provides the essential connectivity required for road-legal lighting, including indicators, brake lights, and fog lamps, housed in a durable metal chassis. While the unit is built for longevity with high-quality brass pins, it requires a basic understanding of automotive wiring color codes for proper installation.

All features

Model Part NumberTR040_TR042
BrandAB Tools

Extended Product Information

FAQs

Can I use this for a 24V system?

No, this product is specifically designed for 12V automotive electrical systems.

Is the wiring diagram included?

The standard wiring configuration is as follows: Pin 1-Yellow, Pin 2-Blue, Pin 3-White, Pin 4-Green, Pin 5-Brown, Pin 6-Red, and Pin 7-Black.

Does this include the cable?

No, this product is the connector set (plug and socket) only; you will need to provide your own towing cable.

Is this socket compatible with plastic plugs?

Yes, as long as the plug conforms to the standard 7-pin N-type specification, it will fit this metal socket.

What tools do I need for installation?

You will need a wire stripper and a small screwdriver to secure the wires into the internal terminals.

How do I protect the pins from corrosion?

Using a small amount of electrical contact cleaner or dielectric grease on the pins will help prevent oxidation.

Troubleshooting

Lights are flickering or inconsistent

Check that the internal screw terminals are tightened correctly and that the earth wire (Pin 3) has a solid, rust-free connection to the chassis.

One specific light is not working

Verify the wiring at the specific pin for that function (e.g., Pin 6 for brake lights) and ensure the wire has not pulled loose from the screw terminal.

Plug will not fit into the vehicle socket

Check the alignment of the keyway on the plug and socket; do not force the connection if it feels obstructed, as this may bend the brass pins.

Pros and Cons

Pros

  • Durable metal construction
  • Easy to install with screw terminals
  • Weather-resistant design with rubber seals
  • Compatible with standard 7-pin trailers

Cons

  • Requires basic electrical knowledge to wire correctly
  • Metal housing is heavier than plastic alternatives
  • Not suitable for 13-pin specific vehicle sockets without an adapter

Setup, Compatibility & Care

To install, strip back the insulation on your trailer loom wires and secure them firmly into the numbered screw terminals inside the plug or socket. Ensure the wire strands are not frayed, as stray strands can cause short circuits between pins.

Compatibility is limited to standard 12V N-type systems. If your vehicle or caravan uses the newer 13-pin Euro-style system, you will require an adapter. To maintain the unit, apply a small amount of dielectric grease to the pins periodically to prevent oxidation and ensure a smooth physical connection. Keep the rubber seal clean and free of grit to maintain the weather-tight fit.

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