Recommended 7-Way Connector for a 2023 Chevy Express Cargo Van
Question:
need to install a 7pin/4pin trailer plug on my 2023 chevy express 3500 cargo van. There appears to be a rectangle shaped multi pin socket under the rear bumper
asked by: Chris J
Expert Reply:
Unfortunately that 12 pin rectangular plug has nothing to do with the trailer wiring harness. To add a 7-way and 4-way connector to your 2023 Chevy Express Cargo van you're going to need to buy two separate harnesses. The reason for this is that the van's with the towing package came from the factory with the 7-way connectors like item # HM40975. The other ones have nothing and no one made a custom fit 7-way that just plugs in.
The first connector you will need is the Curt Wiring Harness item # 55540. This custom fit connector plugs into existing wiring in your rear cargo area which is located behind the interior trim panels in your rear cargo area. This will provide you with a 4-flat connector.
The second harness you will need is the Universal Installation Kit item # ETBC7. The kit includes a pre-wired 7- and 4-way trailer connector that mounts easily at the rear of your vehicle with an included bracket. This kit is designed for use on a vehicle with an existing 4-way flat trailer connector and plugs directly into it.
You will then connect the blue wire to the blue wire on the brake controller, connect the black wire to the positive post on the vehicle's battery, the white wire to ground, and the yellow wire to vehicle's reverse circuit if applicable. This will provide you with the ability to control your trailer's brakes and also provide you with a 12v power wire for you trailer's accessory lights.
I have linked a couple of installation videos below to help you get these parts set up.
Some other parts you will need to tow a trailer with brakes are listed here:
Trailer Hitch - etrailer Hitch item # e98861
Brake Controller - Redarc Tow-Pro Liberty Brake Controller item # RED24FR and Harness item # RED69FR
Wiring Harness Mount - No-Drill Mount Bracket item # 18136
Ball Mount - Rapid Hitch Adjustable, Aluminum Ball Mount Kit w/ 2 Greaseless Balls item # AM3461
Locking Pin - etrailer Hitch Receiver Lock for 2" and 2-1/2" Hitches item # e98881
Products Referenced in This Question
- Accessories and Parts
- Trailer Wiring
- Mounting Hardware
- Brackets
- 4 Round
- 5 Round
- 6 Round
- Tow Ready
more information >
Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- No Converter
- Custom Fit
- 4 Flat
- CURT
more information >
Rapid Hitch Adjustable, Aluminum Ball Mount Kit w/ 2 Greaseless Balls - 4" Drop or Rise
- Trailer Hitch Ball Mount
- Adjustable Ball Mount
- 2 Inch Ball
- 2-5/16 Inch Ball
- Two Balls
- Aluminum Ball
- Aluminum Shank - Silver
- Drop - 4 Inch
- Rise - 4 Inch
- Fits 2 Inch Hitch
- 10000 lbs GTW
- Class IV
- Andersen
more information >
etrailer Trailer Hitch Receiver - Custom Fit - Matte Black Finish - Class IV - 2"
- Trailer Hitch
- Custom Fit Hitch
- Class IV
- 1000 lbs TW
- 10000 lbs GTW
- 12000 lbs WD GTW
- 2 Inch Hitch
- 1200 lbs WD TW
- Visible Cross Tube
- etrailer
more information >
etrailer Hitch Receiver Lock for 2" and 2-1/2" Hitches - Flush - 3-5/8" Span - Chrome
- Trailer Hitch Lock
- Standard Pin Lock
- Keyed Alike
- Steel
- Fits 2 Inch Hitch
- Fits 2-1/2 Inch Hitch
- Flush Pin
- 3-5/8 Inch Span
- etrailer
more information >
Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Accessories and Parts
- Trailer Brake Controller
- Installation Kits
- etrailer
more information >
Redarc Tow-Pro Liberty Brake Controller - Dash Knob - 1 to 2 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Electric over Hydraulic
- Automatic Leveling
- Dash-Mounted Knob
- Hidden
- Up to 2 Axles
- Indicator Lights
- Redarc
more information >
Universal Wiring Harness for Redarc Tow-Pro Trailer Brake Controllers
- Accessories and Parts
- Trailer Brake Controller
- Wiring Adapter
- Redarc
more information >
Product Page this Question was Asked From
7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket - Vehicle End
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- No Converter
- Custom Fit
- 7 Round - Blade
- 4 Flat
- Hopkins
more information >
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Instructions
Miscellaneous Media
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