Recommended Trailer Wiring and Brake Controller for 2004 Chevy 2500
Updated 07/23/2018 | Published 07/22/2018 >
Products Featured in This Question
Question:
Hello I just bought a 2004 Chevy 2500hd Duramax and i was wanting to add a trailer brake controller, a 4 way trailer plug and a 7 way trailer plug in the bed for a gooseneck trailer. I was wondering what all I would need to make this happen? Right now it has a factory 7 way plug for the reciever hitch.
asked by: Matt N
Expert Reply:
It sounds like you are wanting to add a 4-way to your factory 7-way on your 2004 Silverado. There are a couple of options to do that. You can choose from the following based on your preferences in appearance:
7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket # HM40975
Reese Multi-Plug Wiring Harness for Factory Tow Package - 7-Way and 4-Way # 74682
Replacement Custom Multi-Tow 7-Way and 4-Way Trailer Connectors # 30955
Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 7-Way and 4-way # C55774
You can alternatively add just the Curt T-Connector Vehicle Wiring Harness for Factory Tow Package # C55384 or the 5-Pole Flat Trailer Connector # C56584 to give you a 4-way and 5-way option while keeping the factory 7-way as is.
For your Gooseneck trailer wiring harness, I recommend the Curt 5th Wheel/Gooseneck Wiring Harness 7-Pole # C56000.
Finally, I recommend the Prodigy P3 # 90195 for your trailer brake controller and use custom wiring harness # 3015-P for your installation. I've attached a video of the installation to assist.
Product Page this Question was Asked From
Pollak Metal 7-Pole, RV-Style Trailer Socket - Vehicle End
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Vehicle End Connector
- 7 Blade
- Plug Only
- Pollak
more information >
Featured Help Information
Miscellaneous Media








Continue Researching
- Q&A: Why Does the etrailer Trailer Hitch part # e72AR Have a Higher Towing Capacity than the Vehicle?
- Q&A: Replacement Hub/Rotor for UFP 41030
- Q&A: Can you get the Trimax Coupler Lock Keyed Alike? What Coupler Lock can be Keyed Alike?
- Q&A: Metal 6-Way and 7-Way Replacement for Older Ford Truck
- Q&A: Replacement Parts Available for the RAM Trailer Jack Part # TJD-7000S
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Article: Ball Mount Basics: Weight Capacity, Class, and Size
- Q&A: Can Weight Distribution System Be Used on Aluminum Trailer Frame
- Q&A: Does Curt Trailer Wiring Harness C98RV Fit 2025 Kia Telluride
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Trailer Wiring Diagrams
- Article: Must-Have Flat Towing Components
- Article: 30-Amp and 50-Amp RV Service: What's the Difference?
- Article: Trailer Maintenance Schedule

