I am satisfied with the part. It is generally the same as the original with only a very minor dimensional variation, which does not affect the performance. The original impeller vanes were 1/32nd-1/16th inch taller. It is possible this is a newer, improved replacement for better endurance. clearance and performance. The Vacuum is easy to work on, so it was simple to install. The machine works again and is easy to use and has very good suction. It was worth the money and the work.