I bought this harness for my Tesla Model 3 after installing Ecohitch. I found this trailer wiring kit on another site and it's about $200. I found this part number 119251 to be exactly the same as the one you can find on another site that uses the letters 'kit' at the end of the model number. Get this one, it's exactly the same for a fraction of the cost. I was able to connect my Model 3 without splicing any wires. Installation was easy and effortless. All parts are included, all you need is a heat source (preferably a heat gun).
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