Installation instructions are NOT included with this part! This Printer Cassette Tray Feed Kit is compatible with the following Printer Model Numbers: MFCL8600CDW, MFC-L8600CDW, MFCL8850CDW, MFC-L8850CDW, MFCL9550CDW, MFC-L9550CDW Included with this kit is the paper pickup feed roller, separation pad and separation pad spring. Don't see your model number? send a message so we can assist you in obtaining the correct part!