Recommended 4 Flat Trailer Harness for a 2019 Jeep Wrangler
Updated 10/27/2025 | Published 03/21/2025
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Question:
I have installed this on my Jeep JL. It has a plug for a trailer tow harness and a decal that gives the part number 58920. I can’t find it on your web site, do you have another part number.
asked by: John K
(click to enlarge)
Expert Reply:
Hey John, we don't have that wiring harness but it does look like all it is, is a 4 flat harness so you can use the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 56407.
This harness will plug into your exisiting harness and provide a 4 flat to the rear of your Jeep, doing essentially the same thing as 58920.
If there is anything else I can do for you, please feel free to drop a comment and let me know!
Product Page this Question was Asked From
Curt Custom Tail Light Wiring Kit for Towed Vehicles
- Flat Tow Wiring Harness
- Plugs into Vehicle Wiring
- Wiring Harness
- Custom Fit
- 4 Flat
- CURT
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on Flat Tow Wiring Harness
Lazer S.
10/27/2025
Hey John, how did the Curt T-Connector harness work out on your Jeep JL? Did it plug into your existing harness the way you needed? Your update could make it easier for others trying to match that same setup.