Sierra 18-2664 OMC Stringer 4Cyl Lower Unit Seal KitFor Use On (400)Stringer Unit(1978-86).Kit Contains: (1) 18-0110 Shift Housing Gasket; (1) 18-0188 Washer; (2) 18-2001 Oil Seal; (2) 18-2020 Oil Seal; (2) 18-2058 Oil Seal; (4) 18-2060 Oil Seal; (2) 18-3133 Stainless Steel Bolt; (2) 18-3153 Stainless Steel Bolt; (2) 18-3722 Stainless Steel Locknut; (1) 18-4248 Drain/Fill Plug Washer; (1) 18-7101 O-Ring; (1) 18-7102 O-Ring; (1) 18-7127 O-Ring; (1) 18-7130 O-Ring; (1) 18-7168 O-Ring; (1) 18-7178 O-Ring; (1) 18-7404 O-Ring; (2) 18-7409 O-Ring; (4) 18-7475 O-Ring; Interchangeable with: GLM; 87640; Johnson/Evinrude Outboard; 982947; 982177; OMC Stern Drive; 982947; 982177;