Selecting Factory-Style or Aftermarket-Style Trailer Wiring Harness for 2002 Chevy Express Van

Published 01/17/2019

Products Featured in This Question

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

(73)

$42.39

Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector

(25)

$12.20

Question:

I see you have a few options, wondering how I would know if I need the one with the t connectors or just the regular 4 pin. My van is a 2002 chevy express, but it is a conversion van. I dont know if it had a tow packageinch on it or not. do you know where I would look on the van to see if it has some of the wiring already? Thanks.

asked by: Ronnie

Expert Reply:

You can check behind the Express van's passenger side trim panel in the rear cargo area to see if it has connection points for factory replacement wiring. Factory 4-pole items # 118240 and # C55240 both use the same type of square connector, shown in the linked image. If you find this type of connector then you have probably have the tow package; if so, you may need to install a fuse or relay to activate it.

If you do not have this factory wiring connection point then instead you can use one of the T-connector harnesses that will plug in at the van's taillight wiring. Of the three available products like this I recommend the Tekonska harness # 118377 because we find their wiring products to be the most reliable. An installation video is linked for your reference.

Please note that you can still use the Tekonsha harness # 118377 even if you do have the factory wiring.

expert reply by: Adam R