Towing Wire Harness. Towing Wire Harnesses and Adapters.

PT79108150 Product Image
Part Number: PT79108150
Supersession(s): PT791-08150

Genuine Toyota trailer wire harness provides a 4-pin connector located on the trailer hitch to provide power to your trailer's brake lights, turn signals and taillights 

  • Featuring a converter assembly, fusing, cables and connectors all specifically designed to work with your existing electrical system
  • Durable and reliable components


    Fits Sienna (2015 - 2020)

    Before towing, confirm that your vehicle and trailer are compatible, properly hooked up and loaded, and that you have any necessary additional equipment. Do not exceed any Weight Rating and follow all instructions in your Owner’s Manual. The maximum you can tow depends on the total weight of your cargo, occupants and available equipment.

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    Additional dealer discounts may apply.