Replace or repair broken or missing sliding door rollers with this Prime-Line D 1998 Steel Sliding Door Roller Assembly. The stamped steel patio door rollers replacement is adjustable. This door roller assembly is used by a variety of metal framed sliding patio door manufacturers. Made of stamped steel housing with a yellow finish, these sliding door rollers are strong, durable, and built to last. The housing of the sliding door rollers replacement is 11/16 inches wide by 1-11/16 inches deep and 2-3/4 inches long. The concave ball bearing steel roller is 1-1/2 inch. A Phillips head screwdriver is required for installation. Use the screw in the front of the housing to adjust ride height. For further roller assembly sliding door dimensional information, please see the line drawing.