Yth18542 plastjic insert behind cup holder?

[Mike33]

What is this for?

 

[mechanic mark]

https://www.jackssmallengines.com/jacks-parts-lookup/part/husqvarna/531308322?gclid=cj0kcqiakmgcbhcsarisaiw6d0bxju2gsjdljeu8vl2ljbk4zz9u14eecdxh2kdhn0wyerqgxvq-cmeaaucgealw_wcb