Wanting To Wire Up My Harley Ultra Classic To Tow, Any Recommendations?
Updated 08/07/2025 | Published 07/15/2025
Question:
I have a 2004 harley davidson flhtcui ultra classic. The wires coming out of the rear are for a trailer and a ground . The wires on my standard trail have 4 wires and a ground.how do I hook them up or is their a converter plug that will do this
asked by: John
Expert Reply:
Hey John,
If your Harley just has wires in the rear and you are looking for a plug to install to be able to hook up a trailer you could easily install something like # 002402. That is just a normal 4 flat trailer connector with 4 wires and a ground like you mentioned. The most important thing you will want to do is test wire functions on the Harley to match them with the correct wires on this harness. That will get you set up to tow most standard trailers with a 4 flat connection.
What kind of stuff are you looking to tow?
Nick S.
8/7/2025
Hey John, How did the wiring harness installation go for your Harley? I'm curious if it worked out for towing your trailer. Let me know if you need any more help!