What Is The Difference Between 119251 and 119250KIT?

Updated 06/02/2025 | Published 05/28/2025

Question:

Could you tell me the difference between these two products on your website? ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit - 119251 ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit - 119250KIT The latter is 20 bucks cheaper, but I cant find a clear difference otherwise. Thanks, Theo

asked by: Theo

Expert Reply:

Hey Theo,

The only difference between # 119251 and # 119250KIT is that the # 119250KIT comes with a circuit tester included. In my opinion, installation will be pretty difficult without the tester , and it happens to be the cheaper one. I recommend going with the # 119250KIT for your setup. Otherwise they are the same exact wiring harness, one has a tester one does not.

What vehicle are you installing this on?

expert reply by: Nick S

Theo

6/2/2025

Thanks Nick -- the vehicle is a 2025 Chevy Equinox EV.

Nick S.

6/2/2025

@Theo Solid vehicle! Definitely recommend the # 119250KIT for you, its cheaper and its going to have what you need to make the install that much easier. Let me know if you end up having any questions during the install for that.

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