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Switching between trailers can mean swapping connectors, but this socket handles both. The Hopkins 7- and 4-Pole Trailer Connector Socket gives you a standard 4-flat for basic lighting and a 7-blade for trailers with brakes or extra power needs. You can hook up small utility trailers or larger campers without needing adapters.
If the factory connector is damaged or missing, this piece plugs right into the existing round harness at the back of the vehicle. No splicing or rewiring is needed—just disconnect the old one and snap this in. It’s a quick, OEM-style fix that restores full trailer wiring function in minutes.
Keeping dirt and water out of trailer wiring can be tough, but the spring-loaded lids on both connectors lock down tight once closed. They also help hold trailer plugs firmly in place so they won’t shake loose on rough roads. That means clean connections and reliable signals every time you tow.
The included bracket lets you mount the connector right at the hitch or bumper for a clean, reachable setup. It lines up using standard screw holes for a solid fit that doesn’t require any improvising. Once bolted down, it’s ready to plug in and go towing.
Only one connector - a 4-way or a 7-way - can be used at a time because the covers on this socket will not open far enough to allow use of both plugs at the same time.
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
Ratings & Reviews
Brooke M.
6/30/2025
'85 Bronco?? Those are so cool! If you ever felt like sending in a photo that has the whole Bronco in it, I wouldn't object! Glad to know the harness and plug have been serving you well this past year, too :)
Ron P.
3/19/2015
Although I havent towed since installing the Hopkins Pollak wiring kit since I installed it a year ago, I have tested the 4-pin connector for proper function using a 4-pin LED tester from West Marine and it checks out okay. Recently I inspected the kit for water intrusion mentioned by one of the raters, and I found no evidence of moisture inside the dual-connector compartment. On installation, I did make liberal use of the dielectric grease that accompanies the kit. Good product, easy installation, and great price.
Matt W.
7/7/2019
This product has been working well for the past year. I feel this was a smart purchase.
Rob
9/22/2019
Good installation approach for q7’s. Keeps water from collecting in wiring junctions.
Bob R.
5/31/2014
What year is your silverado
Rachael H.
6/4/2014
Randy S.
6/6/2014
Its a 2014 Silverado 1500 Double Cab
Victoria B.
9/23/2019
A no-drill mounting bracket like # C57202 is a great way to give clearance needed to mount the wiring connector higher up on the hitch.
Helpful Links
Gwendolyn Y.
11/13/2025
Glad its a reliable connector and can keep up for as long as it can while on the job!
John C.
7/26/2022
Works great and looks great. Get compliments on the hitch.
Mike T.
4/18/2018
Thanks. I couldnt be happier with my hitch and light hook-up a year later. I use them pretty often.
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Mike L.
8/19/2026
Nice job Jim, thanks for the photo!