Sierra 18-2642 Lower Unit Seal KitSierra replacement lower unit seal kit for Mercury Marine engines.Interchangeable with: GLM; 87513; Mallory; 9-74209; Mercury Marine; 26-816575A5; Seal Kit Contains: 18-2945-9 Drain screw gasket (pk of 2); 18-2563-9 Impeller gasket (2 pk); 18-7159-9 O-ring (5 pk); 18-7176-9 O-ring (5 pk); 18-7420-9 O-ring (5 pk); 18-7440-1-9 O-ring (2 pk); 18-2002 Oil seal; 18-2054 Oil seal; 18-2014 Oil seal; 18-2013 Oil seal; 18-2077 Oil seal; 18-2599 Face seal and tool; 18-2564-1 Impeller faceplate gasket;