Patio Door roller assembly

A handy person from FREELAND WA says:
Hello I need the two bottom roller mechanisms for my glass patio door, the dimensions of the slider are 78"x36'x1,1/2"
The roller assembly itself as pictured is 2 and 1/2 inches long by 3/4 inches width by 1 and 1/4 inch with the wheel mechanism able to extend out another 1/4 inch
The only markings I could find are as follows:
AA/MA ANSI/AAMA 101-85
SERIES 420
SGD-C20
Thumbnail of the uploaded file named IMG_0103.jpg
Thumbnail of the uploaded file named IMG_0104.jpg
Thumbnail of the uploaded file named IMG_0107.jpg
Profile picture of Lauren
Lauren from SWISCO responded:

Hello, thank you for posting! 

We do not have your exact roller, but please start by reviewing the dimensions of the 81-039 , 81-256 and 81-269 rollers. Please let me know what you think! 

How to identify patio door rollers
How to identify patio door rollers
VIDEO
WATCH >
How to maintain a sliding glass door
How to maintain a sliding glass door
GUIDE
READ >
How to replace a sliding glass door roller
How to replace a sliding glass door roller
GUIDE
READ >
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)
Current wait time is 4-7 business days
We promise that one of our experts will personally get back to you as soon as they are able. Thank you very much for your patience and understanding. If your inquiry is time-sensitive, please feel free to reach us at (888) 991-1929 or at help@swisco.com.