Normally, if you need to have a substitute part for your Oster small kitchen appliance like clipper and blender, the ideal way is to purchase them to the manufacturer itself or to any certified service centers, suppliers and merchants of Oster products. This will ensure that you are having only authentic high quality components that will ensure correct working and longer service of your Oster product. Unless you plan to improve, upgrade or you cannot locate the exact part that you need, then you can have the improved alternative components. However before you continue and begin buying replacement components you should first find out the name or part number of the part you wish to buy.