Hopkins® 47605 - 4-Wire Flat Knockout Adapter

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Hopkins® - 4-Wire Flat Knockout Adapter
Hopkins® - 4-Wire Flat Knockout AdapterHopkins® - 4-Wire Flat Knockout AdapterHopkins® - 4-Wire Flat Knockout Adapter Installation InstructionsHopkins® - GuideHopkins Towing Authorized Dealer
In Stock (25) -
Universal Fit
Fitment Notes:
  • Not Vehicle Specific
  • For Use with 1.25" Diameter Hole.
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Hopkins Accessories

Universal 4-Wire Flat Knockout Adapter by Hopkins®. Specially designed for horse trailers or utility/cargo trailers fitted with electric brakes, this awesome cable provides such functions as left/right turn, tail light, auxiliary, ground, and electric brake. The connector is made of high resistant materials to ensure reliable, long-lasting service.

Notes: For Use with 1.25" Diameter Hole.

Hopkins CatalogHopkins F.A.Q.Hopkins About


  • For use with 1.25" diameter hole or part #48605 bracket
  • Can be mounted in place of vehicle's license plate light
  • Dust cover included

You’ve recently bought a trailer and want to try it out as soon as possible? It's pretty easy to understand your strong desire, but before you can legally tow your trailer on public roads, you have to be sure that your trailer lights operate at their peak efficiency. As a matter of fact, this is more important than simply risking a ticket because if your trailer lights are not functioning, you can get into an accident. Fortunately, most trailers come with factory-installed lights and wiring for you; still, if they're missing or beyond repair, it's very easy to find and install efficient replacements, especially with CARiD and Hopkins.

To take care of all of your trailer wiring needs, Hopkins manufactures the highest quality products at more than affordable prices. So, whether you are rewiring the entire trailer or replacing the trailer connector, Hopkins has the trailer wiring solution to do the trick. They offer various connectors ranging from four to seven pins that allow for the transfer of power for the lighting and auxiliary functions, including backup lights, electric trailer brake controller, or a 12V power supply for interior trailer lights or a winch. Choose the Hopkins connector that features the necessary number of pins for the functions required for your trailer and get enhanced weatherproofing, superior durability, and outstanding ergonomics in one package.

With over 60 years of invaluable experience, Hopkins is recognized to be the automotive industry leader in providing exceptional quality towing electrical products. Since the company's early days, it has been guided by the philosophy that all the parts they create must deliver meaningful innovation, value, and performance to the client. According to the company's current rating, they seem to have succeeded in achieving their goals: today nearly 40% of all towing electrical retail sales are proprietary Hopkins innovations. To generate such great results, the manufacturer employs more than 500 people on two production facilities.

Part Number:

Vehicle Fitment

This part is universal
Year Make Model Fitment Notes:
ALL       ALL        ALL         This part is universal
    Hopkins® - 4-Wire Flat Knockout AdapterHopkins® 47605 - 4-Wire Flat Knockout Adapter    $6.19
    00 reviews
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