Lower Knife for Juki MO 6800 Series,6804,6814,6816 (202295). Lower Knife for Juki MO 6800 Series,6804,6814,6816 (202295). Find the sewing machine parts you need at SewingMachinesPlus.com.... - Lower Knife for Juki MO 6800 Series,6804,6814,6816 (202295).