Cow catchers were a brand new addition to Fortnite. You can't catch a cow in Fortnite with these, but you sure can damage structures with this device. In order to equip a Cow Catcher, all you need to do is collect it and then throw it onto your vehicle, just like you would do with the Chonkers tires. If done correctly, you should see a small metal grille right on top of the front bumper of your vehicle in Fortnite.
Related: How long is downtime for Fortnite
With the Cow Catcher equipped, all you need to do is drive through any structure that comes in front of you. Fences, walls, and enemy builds will all be shredded to pieces if you run into them with a vehicle that has the Cow Catcher equipped. Really odd name for a device that can destroy so much. And that brings us to the places where you can find these Cow Catchers in Fortnite.
How to get a Cow Catcher in Fortnite
These Cow Catchers occur as regular floor loot in Fortnite, so you will have to keep your eyes peeled for them. Alternatively, you can also find them inside red toolboxes that are spread all over the Fortnite island. However, you might have to scourge through a few toolboxes in order to get your hands on a Cow Catcher in Fortnite.
For more information on Fortnite, check out Is Obi-Wan Kenobi coming to Fortnite? and more on Pro Game Guides.