When you tow different trailers, connector styles can be a hassle. This adapter converts a standard 4-flat plug to a 7-blade socket, so you can run either style without rewiring your setup. It’s a simple way to keep all your trailers ready to roll with one vehicle connection.
If you start with basic lighting and later add electric brakes or battery charge lines, this plug-and-lead adapter makes that upgrade easy. The ready-to-wire leads give you the option to add those extra functions later without replacing your whole wiring system.
You don’t need to worry about compatibility across different models or trailer types. The universal fit design works with standard connectors, making it a dependable choice whether you’re towing a small utility trailer today or a camper tomorrow.
Anyone who’s used CURT gear knows they’re built to last. This adapter uses solid contacts and tough materials that hold up through weather and road grime, keeping your trailer lights and signals working trip after trip.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi everybody, Andy here with etrailer.com, and today, we're gonna take a look at this Curt 4-Way Flat to 7-Way Socket Adapter. This adapter is going to convert the 4-way flat trailer connector on your vehicle to a 7-way socket, and the 4-way flat trailer end is going to plug into the 4-way flat on your vehicle, and the socket plugs into a 7-way RV blade connector, and that connector is sold separately. So this is going to enable the installation of a Curt Echo brake controller on 4-flat vehicles. Now, to install, this is going to be a relatively simple install, you wanna locate your vehicle's 4-way flat harness and attach it to the 7-way harness, and if the harness is in the hatch or in the trunk of your vehicle, you will need to route the 4-way flat to the outside of the vehicle, and this can be done by routing through a grommet in the trunk or hatch area, potentially, under your spare tire. Next, you do want to run a power wire from the battery to the black wire on this harness and splice it together. This black wire is going to get connected to one end of this included bundle of black wire, and using one of the included butt connectors, you're just going to connect these two wires together, and then the other end of this bundle is going to get routed to your vehicle's battery.
And once you have this routed to your battery, you are going to take this fuse holder and snip that wire in half and connect one of these wires with the second butt connector to the routed end of this bundled wire, and then the other half of this fuse holder will get this included ring terminal attached to it, and that's going to connect to the positive post of your vehicle's battery. This does come with a 15 amp fuse and you're just going to put that into the fuse holder, and this cap is going to keep that fuse safe and secure in this fuse holder. A diagram is included with the instructions for reference if you need that, a wiring diagram. And then, also on this, you have a blue wire that is for a hard-wire brake control, and then this red wire right here is for reverse trailer lights, if needed, you can splice this in also. Now, you do wanna locate a suitable grounding point, and so, you're going to use this white wire with this terminal, and then you can use the included screw here or find a bolt in the frame of your vehicle to secure this to a nice rust-free, clean, paint-free area on your vehicle to give you that nice grounding point.
Now, you can secure any slack in your wiring with the included cable ties, and you're gonna have plenty to make sure that your wiring is nice and secure. And then finally, you are going to attach a USCAR 7-way and mount it in the bumper or mounting bracket, and you do wanna test all the functions to make sure that this is working. Well, that's going to conclude our look today, I do hope that it was helpful for you. Again, my name is Andy, thank you for joining me.
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
Ratings & Reviews
received the wrong hookup for my trailer, I went to Walmart and purchased a, hopkins, 4 flat to 7 blade & 4 flat setup. did know that they made other weird connectors. the other part was ok and used it. thanks.
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