Sliding window rollers

My sliding window was installed in 1997. The rooler is 1/4" in width to fit into the window channel. The casement and wheel of the roller is 6/16" in height. The casement itself is 1/4". The length doesn't matter, but it is 3/4". It seems after a few minutes on your website that product coe 87-084 is close. My roller is metal with a brass wheel, but the metal has corroded, so I would prefer plastic if possible. But anything that fit will do. I hope this helps.