Making a 7-Way to 9-Pole Trailer Adapter for a 1987 Avalon Trailer

Question:

I have a travel trailer 87 Avalon with a 9 round pin wiring, my truck has 7 spade.. Do you have an adapter need 7 spade for a different trailer.

asked by: James

Expert Reply:

What you can do is make an adapter to go from the 7-Way on your vehicle to the 9-Way used on the trailer. You will only need two parts and some wire. First, you will need a Pollak Black Plastic 7-Way, Trailer Side, # PK12706. Then you will need Pollak 9-Pole, Round Pin Trailer Socket - Vehicle End, # PK12907.

Both of these parts are designed so that you can attach the wires yourself. If you open up each one, you will see a number and function description next to each pin. All you will need to do is attach a wire from the 7-Way to the 9-Pole, number for number. For example, both use # 1 as the ground wire so you would connect an 8 gauge wire on the # 1 pin from the 7 way to the 9-Pole. The running lights and tail lights use 14 gauge wire.

Once they are wired and put back together, you would plug the 7-Way side into your vehicle 7-Way and the trailer 9-pole would plug into the 9-pole on the adapter.

expert reply by: Michael H