2011 which harness to purchase

I just purchased a new leftover 2011 access cab 4x4 4cyl 5spd tacoma. My question to you guys/gals out there is which oem wiring harness should I buy. They sell a 4 pin for trucks without tow package and a 7 pin. Both oem toyota harnesses and some sort of black box. Found both in the oem toyota parts sites and ebay. The 4pin would probally be ok, but will the 7 pin work on the 4cyl truck?

 

Should I get the 4 pin harness or the 7 pin harness?

 

What are you going to pull?

 

Mainly a 74" x10' alum utility trailer with a polaris rzr on it. Firewood. general use like getting supplies for building this and that around the house from the hardware store. The trailer has a 4way plug on it. Didnt know if the 7pin harness would even work on my truck. I have 7 pin to 4 pin adpater plugs laying around. Having the 7 could be nice at times. I have a fullsize silverado as well but maybe selling it in the near future.

 

If your trailer has a four - that's what I'd go with.

I assume you haven't installed an electric brake controller.

 

no controller. I decided and went with the 4pin. Thanks to all

 

I know this is a little too late but I had a similar setup on my first Tacoma and the 4pin was all I ever needed.

You should be absolutely fine that way.

 

If cost isn't a concern, I'd get the 7-pin. You can always 'dumb down' a 7-pin to a 4-pin with the adapter, but you can't go the other way. Personally, I went with a 4-pin because it was a very simple install and I do not have the need for a 7-pin.