Need help identifiing replacement part

Thanks for reaching out to us. I've never seen a roller with the wheels mounted in such a way. However, I think the 81-052 is worth considering. There's a chance it won't clear the track once it's installed in the bottom rail of the door and the wheels may not go up as far into the roller housing to clear the track. However, our roller has a spring to hold the wheels down but can be pushed up for the 1/4" clearance you're looking for.