Seals It Air Cleaner Nut, 5/16"-18 Thread, Aluminum / Rubber (Dirt Plug Seal Included)

Don’t let debris or dirt fall into your carburetor, protect it by using the carburetor dirt dish seal to ensure that nothing enters the carburetor during mechanical work. With its easy installation, all you have to do is thread it onto the rod, right on top of the air cleaner with the wing nut. Let the seal do its job by collecting all the grime on the outside of the seal, preventing miscellaneous debris from entering the carburetor, during deinstallation or worse, your wing nut falling through and entering your engine.