Sierra 18-2681 Lower Unit Seal KitFor use on Johnson/Evinrude Outboard Engines, 6hp 1968-79 (1968 "A" & "R" Suffixes Only).Kit Contains: (1) 18-2023 Oil Seal; (1) 18-2024 Oil Seal; (1) 18-2534 Seal Kit; (1) 18-2891 Bearing Housing Gasket; (2) 18-4248 Drain/Fill Plug Washer; (1) 18-7100 O-Ring; (1) 18-7117 O-Ring; (1) 18-7120 O-Ring; Interchangeable with: GLM; 87617;