Searching for 10881 slding door

Thanks for posting. Pella sliding glass doors often use either the 81-098 (we carry a generic version of this also, the 81-249), or the 81-244. Unfortunately I can't narrow it down any further than this; ultimately you'll need to compare the old rollers to these choices to see if either match what you need.

Alternate image for 81-098

Alternate image for 81-244