An engine must be maintained regularly for it to work optimally. This includes a regular impeller change. This way only can you keep the wear low and extend the life of the engine. ATTENTION: OE quality. These are NOT original parts from the engine manufacturer! Our impellers have "original equipment manufacturer quality" and meet the requirements of engine manufacturers. The impellers are available for different engines. If your engine is not listed, please contact us. We will do our best to find the right impeller for you.