Where is the Factory Wiring Harness to Install a 7-Way Trailer Connector on a 2004 Chevy Tahoe
Updated 05/01/2010 | Published 04/30/2010 >
Question:
Ive got a 2004 Tahoe. Where is the oem wiring harness that this connects to ont he vehicle. My vehicle has an aftermarket hitch but the wiring was not done. I need to hook up a boat trailer with 7 round. Please advise. Thanks!
asked by: kris
Expert Reply:
On your 2004 Chevy Tahoe, you should find the wiring harness underneath the rear of the vehicle, above the spare tire. You may have to remove the spare tire to access the harness. The harness might not be long enough to reach where the the Pollak 7- and 4-Pole Trailer Connector Socket, # HM40975, will mount. If this is the case, you can use Replacement Multi-Tow 7-Way and 4-Way Trailer Connector, # 30955 instead.
You stated that your trailer has a 7 round plug. Check to see that the pins in it are the blade type as the Pollack unit is not compatible with round pins. If you do have round pins, you will need an adapter like the Adapter 7 Way (Blade) to 7 Way (Round Pin), # 47595. Your round pin 7-Way plugs into the front and the 7-Way blade on the back would plug into the Pollack unit.
Continue Researching
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Trailer Wiring Diagrams
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Article: How to Choose the Right Trailer Hitch Class
- Article: Brake Controller Installation: Starting from Scratch
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Q&A: My Vehicle has a 4-Pin Trailer Plug, but Trailer has 7-Pin Trailer Plug
- Article: How to Measure for Trailer Hitch Drop
- Q&A: 2025 Kia Sportage PHEV
- Article: Wiring Trailer Lights with a 4-Way Plug (It's Easier Than You Think)
- Q&A: Availability of Victron DC/DC Battery Charger With Lithium Compatibility and Engine On Detection
- Q&A: How to Add a 7-Way Connector to a 2015 Ford Transit T250
- Q&A: Parts Needed to Add 7-Way and 4-Way to 2023 Ford F-150