I unfortunately don't have all the information you generally seek. But I have an older Pella doorwall. I was unable to find any numbers or markings. My rough meausrements of the roller indicates a length of approximately 2.75", a height of 1.75" and a width (excluding the flanges) of roughly 0.5".
I hope you can identify the replacement roller (x2) based on the attached pictures. I look forward to hearing from you. Thanks in advance for your assistance.
Jeff
