VW Beetle | Napoleon hat on chassis

VW Beetle | Napoleon Hat on Chassis

The Napoleon hat on the chassis is the air filter cover above your carburetor, named after its characteristic shape. On your Beetle and T1, this part sits between the intake manifold and the carburetor, and it keeps dirt and moisture out of your fuel mixture. After years, the plastic becomes brittle and tears, so a new one is not a luxury if you want to keep your engine clean. Combine this with a new intake manifold and carburetor if you're overhauling your intake system anyway.