Wiring for 2014 Jeep Grand Cherokee Without Factory Tow Package
Updated 09/12/2025 | Published 05/26/2025
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Question:
Which wiring harness do we need? Doesnt have any factory installed parts for towing to the best of my knowledge. This is for my brother n laws 2014 Jerp Grand Cherokee.
asked by: Matthew M
Expert Reply:
Hey Matthew! Based on what you said I'm assuming this 2014 Jeep Grand Cherokee does not have the factory tow package. To add a 4-way you need the T-One Vehicle Wiring Harness # 118727. If you want to upgrade it to a 7-way then you will also need the # ETBC7.
Is he planning on towing a trailer with it? If so, in addition the hitch you ordered and wiring you will also need a ball mount. Check out the etrailer Adjustable 2-Ball Mount # e66PR. This has a 2" and 2-5/16" ball with a max rise/drop of 6" so you're covered no matter what you're towing with the GC.
If you have any other questions don't hesitate to reply below.
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on Custom Fit Vehicle Wiring
Robin H.
9/12/2025
Hey Matthew, did the T-One Wiring Harness and the other parts work out for your brother-in-law's Jeep? I'm asking because your experience could help others looking to set up their Grand Cherokee for towing.