Oyviny 7 Pin Round to 4 and 5 Pin Flat Blade Trailer Adapter, 7 Way to 5 Way Trailer Plug Adapter 2-in-1 Design

After removing boat from lake, I plugged my trailer back into the truck. Few minutes later lights went out. Fuses were good, wireing seemed to be ok but no lights. Bought this adapter because it has 4 & 5 connection points. Plugged it in and all the lights work. Old adapter apparently shorted inside. This is a great choice to plug in 4 & 5 different types of trailer lights.

This adapter has been wiring great with my 2021 GMC Acadia AT4's factory 7-blade harness. I have two trailers that I tow but they are both 4 pin. For the extra $1 to get the 5-pin it was worth it. I do chew a trailer to tow eventually with a 5-pin so we will find out how it works there.

Great value, good quality and works perfectly.

Works fine

Fit perfect. Great product does what it is supposed to

These work excellent when you need a 4 or a 5 prong plug. I use these specifically to boats that have the odd-ball 5 prong set-up. Easy to plug in and nice cover for when it’s not in use.

Great replacement. Great quality!

Works great

I like that it can support two harnesses. Excellent idea

Sa très bien fonctionné

Bon adapteur fait solide

Multi tool for different trailer needs. Great product.

Fonctionne très bien. Simple d'installation et d'utilisation.