Installation instructions are NOT included with this part! Up for sale is the Pulsator Cap that originally shipped with the following Samsung Washing Machines: WA52M7750AV, WA52M7750AV/A4, WA52M7750AW, WA52M7750AW/A4 The pulsator cap fits over the washplate mounting bolt - the cap protects the bolt and prevents clothing from catching on the washplate. This is a NEW and True Samsung Part! This offering is for ONE Unit. If you don't see your model number -- Please send us a message so we can help you to select the correct item. We are happy to help!