How to Choose Correct Ball Mount for Towing a Trailer with a 2013 Subaru WRX and EcoHitch

Question:

So i just purchased a 2 inch hitch receiver and the 56061 T-conn Prot Wiring Harness for a US Spec 2013 Subaru WRX Sedan from you guys. I will be needing to tow a trailer here with it, is there a specific hitch ball and wiring adapter that I should get for a German Trailer? Thank you.

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Expert Reply:

To choose the correct ball mount/hitch ball combo you simply need to measure the height of the top of the inside of your EcoHitch Invisi Trailer Hitch Receiver # 306-X7279 when it is installed on your 2013 Subaru WRX Sedan as well as from the ground to the bottom of your trailer coupler (while it is level!). You then just need a ball mount with a drop if the receiver is higher or a rise if the trailer coupler is higher. The ball mount kit # 989900 is a great option because it comes with 2 ball mounts; one with a 3/4" rise/2" drop and one with a 2-3/4" rise/4" drop. It also includes a 1-7/8" ball, 2" ball, hitch pin with clip, and a storage bag. I have linked a ball mount article that you can reference as well.

When it comes to compatibility of the Curt T-Connector # 56061 with your German trailer you need to verify that the wiring on your trailer matches the functions of the 4-Way from Curt. I have attached a photo showing what pins carry which functions you so will need to apply 12V power to each pin on your trailer connector to see if they match. If they don't then you need a new connector like part # HM38134. If your trailer has separate stop and turn signals then the converter # 118158 installed on your trailer will split those functions apart.

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Jon G

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