Forum Discussion
Old-Biscuit
Aug 25, 2017Explorer III
P Colahan wrote:
Thanks guys, much appreciate the responses. It makes sense to match or slightly over the truck rating. There sure are a lot of hitches out there. Thanks for the recommendations.
Is it normal for 5th wheels to have tow electrical plugs to the tow vehicle. As I said earlier, I have one 7 and one 5 pin in the bed. Notice last night while scoping RV Trader that I could see what looked like two cords coming out by the hitch. What are they used or?
5 pin round .......has right/left--brake lights, ground, tail/marker lights and brake power wire
Typical for flat bed trailers, horse/cargo trailers etc.
7 pin blade........all of the 5 pin PLUS trailer battery charge line and backup lights
SO you would have the trailer umbilical cord ....plugs into 7 pin nd then 'other' cord/strap would be for the 'Emergency Break Away Switch' pin .....connects to tow vehicle so Pin gets pulled out of switch IF trailer becomes separated from tow vehicle. Allows FULL trailer battery voltage to trailer brakes so stop run away trailer
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