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Parts to Add 4-Pole and 7-Way Trailer Wiring Harness to 1998 Toyota 4Runner  

Updated 05/22/2018 | Published 05/19/2018

Question:

1998 4 runner v6 - what wiring harness do i need?

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Expert Reply:

The 4-pole trailer wiring harness kit I recommend for your 1998 Toyota 4Runner V6 is the Tekonsha harness # 118341. We have found that their wiring products are the most reliable.

The harness plugs in at your taillight connectors and apart from that requires only a ground wire ring terminal be installed.

If you wish to convert these basic lighting signals to the 7-way connector format you can add adapter # 37185. But if you wish to have a fully-functioning 7-way with the three additional circuits for 12V power, reverse lights and trailer brakes then instead you will want kit # ETBC7.

This includes the # 37185 socket along with the other components needed to have a fully-functioning 7-way. An install video and article are linked for you.

expert reply by:
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Adam R

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