The Nut-hex,6mm is the lowest priced item on this Air Cleaner schematic.
The sub assemblies and components that make up this Air Cleaner include this Pipe-intake, the most expensive part.
With all the components that make up the KAF400-ABF MULE610 2011 USA / 4X4 Air Cleaner assembly. The Clamp,air Filter is the most frequently specified with four applications.