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Best Trailer Wiring Harness For 2025 Nissan Frontier S Model  

Updated 10/02/2025 | Published 09/08/2025

Question:

which T1 wire harness is the right one for a 2025 nisan frontier S model

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Expert Reply:

Hello Dan, thanks for reaching out. We do offer a wiring harness for your 2025 Nissan Frontier S. We have options for both a 4-flat or a 7-way. What you will need is the following:

- T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118525

- T-One Vehicle Wiring Harness with 7-Way Trailer Connector # 118266

Both of these include the jumpers and relays necessary to activate the tow package. What kind of trailer are you pulling? Does it have electric brakes?

expert reply by:
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Jesse M
Jesse M. profile picture

Jesse M.

9/29/2025

Hey Dan, did you decide on the 4-flat or the 7-way wiring harness for your Nissan Frontier? I'm curious about your choice because it could help others with similar towing needs.

Dan profile picture

Dan

10/2/2025

@jesse think im going with the 4-flat because i dont have a tow mode button or a brake control box on my truck im just pulling a 12foot trailer with a rideing mower to property that i have i have a bigger truck allready with the 7-way
Jesse M. profile picture
Etrailer Expert

Jesse M.

10/2/2025

@Dan Ok great! Just thought I'd check in. The Tekonsha # 118525 is what you will need then.

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