Trailer Plug & Socket Wiring Diagram

Trailer Wiring Diagrams

Flat Trailer Plugs & Sockets

The below diagrams are for 12 pin flat & 7 pin flat trailer plug wiring and socket wiring. Below are standard NZ trailer wiring colours.

7 pole Amp rating per pole 15A at 12V
5 pole Amp rating per pole 35A at 12V (12 Pin top row)

flat plug table

flat plug diagram

Small Round Trailer Plugs & Sockets

The below diagrams are for small 7 pin round & 5 pin round trailer plug & socket wiring. Below are standard NZ trailer wiring colours.

small round plug table

small round plug diagram

Large Round Trailer Plugs & Sockets

The below diagrams are for large 7 pin round & 5 pin round trailer plug and socket wiring. Below are standard NZ trailer wiring colours.

large round plug table

large round plug diagram

Trailer Lighting

All NZ trailers must be fitted with ADR compliant lights.
Rear tail lights are to be fitted on the outer extremities of the trailer to show how wide the trailer is.
Minimum lighting requirements for trailers is x2 red tail lights, reflectors, turn indicators and a number plate light.
If your vehicle lights are not visible you will also require two brake lights.
Trailers over 2 metres in width require marker lights or forward facing lights.

Return

Ken and I would like to sincerely thank you for your wonderful customer service and the way your company handled our issues with the boat trailer. We have never been treated so nicely over an issue before. Your politeness, motivation and just a great attitude made this very stressful situation a lot more pleasant for us.
Be proud of your customer service manner, a rare find and we are stoked to have this huge problem sorted. We tested it out at the weekend by traveling to Motueka, a 5-hour drive from Christchurch, the trailer towed beautifully.

You are awesome and we will make sure we pass on to others how wonderful your company is to deal with.
.

Ken & Lynn | GFAB Trailer
We have been working with Trailparts for years now and are very satisfied with their products - The all team is very professional and friendly. We mainly deal with Craig and have to say that he is on point! Highly recommended.

Jonathan | Aakron Xpress Ltd
Awesome thank you very much. I have to say you guys really do stand by your promise to give customers excellent service and would say your service is out standing.

Leon | Hireace
Thankyou again for your fantastic service and support. Despite the issue with the Calipers, the Disk hubs and bearings were all sweet.
She is all on the road and working. We got away all AOK in the end and would have no hesitation in recommending you to others we associate with.
Kind regards
Phil

Phil
Now 100000km isn’t a lot in a commercial sense I guess….. however …we would have replaced 4 maybe 5 sets of our little wheel and tyre packages in that mileage normally… So a massive saving. The unihubs are without question the best thing on the market !

Matthew | ASAP Cars
Prompt turnaround on that custom axle, just in time for final assembly in preparation for the Fieldays. Thanks to the Trailparts Team for going the extra mile. Always appreciate your prompt service and support.

Rob Hogan | Kea Trailers NZ Ltd
Thanks again to you and the team for sorting these axles for us at short notice, 110% appreciated! They're now fully installed to the float & we'll be rolling it in a matter of minutes. Fantastic!

Justin | Angove Engineering
This company has two of the best people employed that I have dealt with in a very long time. Dealing with them was so easy!

E. Hammerich
We want to be associated with businesses like you who understand what's required to make things easy for the average customer.

A. Guzzo