Sierra 18-2673 OMC Cobra-Upper Seal Kit
Replaces: Sterndrive/Cobra #984459
For all Cobra (1986-89)
Sierra 18-2666 OMC Stringer Upper Seal Kit
Upper Gearcase Seal Kit
Replaces: 981799
100-245 Stringer Unit (1968-72)
Sierra 18-2644 Alpha 1 Gen II Seal Kit
Replaces: Mercruiser Inboard/Outboard #26-88397A1
For Alpha I Generation II drive systems
Sierra 18-2667 OMC Stringer Upper Seal Kit
Upper Gear Seal Kit Replaces:982949
All Stringer Unit (1973-86)
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