AB Tools Tow Bar Electrics 7 Pin 12V N Type Plastic Socket For Trailer Lights - TR041

This listing is for a 7 Pin socket (N type) to power trailer or caravan lights. Ideal for new tow ...

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B&QB&Q - Tow Bar Electrics 7 Pin 12V N Type Plastic Socket For Trailer Lights Tr041
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eBayTow Bar Electrics 7 pin 12v N type PLASTIC Socket for Trailer Lights TR041
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Product Information

Full details

This guide is for vehicle owners needing to connect trailer or caravan lights. The AB Tools 7 Pin N Type Plastic Socket provides a reliable connection for essential lighting functions like indicators, side lights, and brake lights, ideal for new tow bar installations or replacing damaged sockets. A key consideration is ensuring correct wiring, as vehicle wiring may not always follow standard colour codes.

All features

Model Part NumberTR041
BrandAB Tools

Extended Product Information

FAQs

What does 'N type' mean for a trailer socket?

'N type' refers to the standard 7-pin socket configuration commonly used in Europe for basic trailer lighting functions. It is distinct from the 'S type' (12S) or 'AS/EU' type sockets which offer additional functions.

Can I use this socket with a caravan?

This 7-pin N type socket is typically suited for smaller trailers and basic caravan lighting. Larger caravans or those with features like 12V power, charging, or fridge operation may require a 13-pin socket.

How do I know if my vehicle wiring matches the standard colours?

While the provided colours are standard for N type sockets, vehicles can vary. The safest method is to use a multimeter or a trailer light tester to confirm the function of each wire on your vehicle's harness before connecting to the new socket. If replacing an old socket, mark the wire positions before disconnecting.

What is the difference between this plastic socket and an aluminium one?

The primary difference is the housing material. An aluminium housing generally offers greater durability and resistance to physical damage or extreme weather conditions compared to a plastic housing.

Does this socket come with wiring or connectors?

This listing is typically for the socket body only. You will need to supply the appropriate wiring and connectors to attach it to your vehicle's harness.

What functions does a 7-pin N type socket support?

It supports the essential lighting functions: left indicator, right indicator, side lights (left and right), brake lights, and rear fog lamp, along with an earth return.

Troubleshooting

No lights on trailer.

Check that the trailer plug is fully inserted into the socket. Verify all wire connections on both the vehicle and trailer are secure and correctly wired. Test the vehicle's towing electrics system with a known good trailer or a test board.

Only some trailer lights work (e.g., brake lights but no indicators).

This usually indicates a wiring issue. Double-check the wiring connections for the non-functioning lights against the standard pin layout and your vehicle's specific wiring.

Intermittent light failures.

Check for loose wire connections within the socket or at the vehicle's wiring harness. Inspect the socket pins for corrosion; clean if necessary. Ensure the socket is securely mounted and not subject to excessive vibration.

Pros and Cons

Pros

  • Provides essential trailer lighting connections (indicators, side, brake, fog).
  • Durable construction with brass pins for reliability.
  • Suitable for both new tow bar installations and replacing old/damaged sockets.
  • Cost-effective solution for trailer electrics.

Cons

  • Plastic housing may be less durable than metal alternatives in extreme conditions.
  • Wiring colour codes may vary between vehicles, requiring careful attention.
  • Only supports N type connections, not multi-function sockets.

Setup, Compatibility & Care Instructions

Setup:

  1. Identify Wiring: Before removing an old socket, carefully note which wire connects to which pin number on the old socket. If installing new, consult your vehicle's towing guide or a qualified auto electrician.
  2. Connect Wires: Connect the vehicle's wiring harness to the corresponding pins on the new socket. Standard N type wiring colours are:
  • PIN 1: Yellow (Left Indicator)
  • PIN 2: Blue (Fog Lamp)
  • PIN 3: White (Earth Return)
  • PIN 4: Green (Right Indicator)
  • PIN 5: Brown (Right Side Light)
  • PIN 6: Red (Brake Lights)
  • PIN 7: Black (Left Side Light)

*Note: Vehicle wiring colours may differ. Always ensure connection by pin function, not just wire colour.*

  1. Secure Socket: Mount the socket securely to the tow bar bracket.

Compatibility:

  • This is a 7-pin N type socket, compatible with standard 7-pin N type trailer plugs.
  • Designed for 12V systems.

Care:

  • Periodically check the socket for dirt, debris, or corrosion. Clean with a damp cloth. Avoid harsh solvents.
  • Ensure the connection pins remain clean for optimal conductivity.

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