Roller assembly from under 1970s siding patio/deck door.

Hello there! Thanks for reaching out to us. Unfortunately, we do not sell a replacement for the roller hardware shown here. The best we may be able to offer is a new wheel; our selection of Patio Glass Door Replacement Wheels & Axles can be found here. I am very sorry that we can't offer a suitable replacement; please let us know if you have any other hardware questions.