end pieces for sliding window cradle

A quick learner from san francisco says:
December 15, 2020
HELP!! don't know the make or model number for windows. installed 25 years ago. I need either replacements for the end pieces (depicted in black) or the entire cradle with end pieces attached.
Thumbnail of the uploaded file named IMG-9974.jpg
Thumbnail of the uploaded file named IMG-9975.jpg
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Casey from SWISCO responded:
December 16, 2020

Hello, thanks for writing in. We won't be able to replace the metal channel, but we may be able to help in regards to the roller. Take a look at the list I've created on the side of the page. Review their dimensions to see if any of these may work for you. 
Peco Sliding Window Roller
Peco Sliding Window Roller
87-057
$3.04
Sun-Air Window Roller Assembly, 1/2" Flat Wheel
Sun-Air Window Roller Assembly, 1/2" Flat Wheel
87-177
$3.20
Sliding Window Roller, 5/8" Flat Wheel
Sliding Window Roller, 5/8" Flat Wheel
87-111
$3.20
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