Parts Needed to Adapt 4-Way Flat on Vehicle with 7-Way Round Connector on Trailer

Question:

I need help attaching my electrical components from my utility van to my service trailer. My service trailer has a 7 flat Pollak 12-705 plug and my utility van is wired as a 4 flat. How do I connect the electrical of these 2 components? I am striking out trying to find the correct product, Let me know if you can help or if you need me to provide pictures. Thank you,

asked by: T.J. L

Expert Reply:

We have exactly what you need so that you can use your utility van to tow your trailer that has a 7-Way connector like part # PK12706.

If you just need the basic trailer lighting functions (stop, turn, running, and ground) then you simply need to install the Hopkins Adapter # 37185. It comes with 7-Way round and 4-Way flat connector and has a 4-Way at the back of it that plugs right into the 4-Way that you currently have.

For a fully functional 7-Way you need the Universal Wiring Kit # ETBC7 instead. This has the same adapter in it, but it also includes the wiring and parts needed so that you can get 12V power and gain the ability to utilize a brake controller on your 7-Way.

If you need to use a brake controller just let me know what the year/make/model of your van is and I can see if we have any more information on any wiring needed.

expert reply by: Jon G