We have a 20+ year old vacuum that has never needed any attention until now. Once I pulled the cover off the beater brush and realized it was a broken belt, I went to the Sears parts website and found the schematic for our vacuum. Found the belt I needed and low and behold, it was the right belt. It was just the right part and fit like a charm and so easy to replace. It took about 5 minutes to put back on and the vacuum was up and running again. The new belt should now outlast the entire vacuum. The part schematic was well defined and easy to read and gave me the confidence I needed to know that I was ordering the right part. It was just what I needed.