Fuse Size of Tekonsha 4-Way 118727 on 2020 Jeep Grand Cherokee
Updated 01/27/2026 | Published 08/17/2024
Question:
Hi. I had a question. My son bought a 2020 jeep grand cherokeee that has an aftermarket 4 pin wire harness. There is a yellow in line fuse holder in the engine compartment. What size fuse is generally used for this. It is yellow. Not sure if that makes a didference. Thx!
asked by: Kevin b
Expert Reply:
Hi Kevin,
I'm not quite sure of what a general fuse size would be, I can only give specifics on the 4-way we have for the 2020 Jeep Grand Cherokee, which is the Tekonsha # 118727. This 4-way uses a 15 amp fuse, and the fuse holder is also yellow like you mentioned, so it wouldn't surprise me if the fuse size is 15 amps in your son's case as well.
Product Page this Question was Asked From
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Vehicle End Connector
- Powered Converter
- No Tow Package
- 4 Flat
- Plug and Lead
- Plug-In
- Visible
- Tekonsha
more information >
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Jerred H.
1/27/2026
Hey Kevin, did you find out if your son’s Jeep wiring harness also uses a 15-amp fuse like the Tekonsha one? Knowing what you discovered could help others sorting out similar aftermarket setups.