Recommended 7-Way Connector for a 2023 Chevy Express Cargo Van

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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

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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

expert reply by: Jerred H

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Answer 1

Thanks for the picture Don! I do not have anything that connects to that 10-pin so I am hoping you're just at the wrong connector. I have linked a picture below along with an installation video that will show you what the Hopkins item #31345…

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Answer 2

We certainly do! The hole in the #DM69FR coupler that the locking pin would pass through is 5/16, which would easily accept the 1/4 inch diameter locking pin used by the etrailer #e98888 Coupler Lock. I've linked to a product demonstration video…

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Answer 3

First I recommend installing our etrailer Trailer Hitch Receiver #e98861 on your 2024 Chevrolet Express cargo van. This will bolt on using existing holes already in your frame with the receiver sitting below the rear bumper. The Pro Series Adjustable…

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Answer 4

I would be happy to! Since you do not have the trailer package you're going to need to install two seperate wiring harnesses to add a 7-Way connector. You have to start with a custom fit 4-way because there is no way to just install a functional…

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Answer 5

Yes, it will Bob. The Dometic RV LP Gas Furnace item #DMC64MR is also a 35,000 btu furnace that heats with LP gas and 12V power. It measures 20" deep x 7" tall x 16-1/2" wide. It can be installed in a horizontal or vertical…

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Answer 6

Hey Vince, welcome back! Curt still has not put together a version of the #C45WR with a 2" ball. The only way to make this happen right now would be to order the Curt Ball Mount w/ Sway Control Tab #D320 and then add the Curt RockerBall Shock…

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Answer 7

You are correct, adding a second sway control bar, like the Curt Friction Style Sway Control, #17200, is recommended for trailers over 26 feet long. You will need to use the weld-on friction sway control tab #C45822 or #3442. It will get welded to…

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Answer 8

Using Loctite when installing a trailer hitch is not required but it can certainly be used to create an even stronger bond. Blue Loctite like the Blue Stick #LT37643 is plenty sufficient for this application. As long as the hardware for your hitch is…

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Answer 9

While a weight distribution hitch like the Fastway e2 #FA92-00-0450 will perform better to control trailer sway you could also use a Friction Sway #17200 with a Ball Mount #D320. If you go this route you have to remove the sway bar before maneuvering…

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Answer 10

It sounds like you're looking for the Curt Ball Mount w/ Sway Control Tab for 2" Hitches #D320. This is the same as the #C45WR but fits a 2" hitch and does not include a ball. If you're going to use your existing 2" ball make…

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Answer 11

If your 2019 Chevy Express Van 3500 has the tow package there will be a round connector taped behind the rear bumper that a 7-way like the part #A10-7072VP could attach to. Otherwise you'd need to install a 4-way first like the part #118392.

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Answer 12

Although the Tekonsha Prodigy P3 #90195 and Primus IQ #TK90160 electric brake controllers are very similar they do have some key differences as well. For one the P3 is designed to work with electric and electric over hydraulic brake systems. The…

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Recommended 7-Way Connector for a 2023 Chevy Express Cargo Van

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