Photo 1 of MARKGOO 99370A2 Water Shutter Assembly for MerCruiser Sterndrive R MR Alpha One V6 V8 4.3L 5.0L 5.7L Engine Outdrive Boat Motor Exhaust Flapper Sierra 18-2733 92802 99370A-2

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Photo 1 of MARKGOO 99370A2 Water Shutter Assembly for MerCruiser Sterndrive R MR Alpha One V6 V8 4.3L 5.0L 5.7L Engine Outdrive Boat Motor Exhaust Flapper Sierra 18-2733 92802 99370A-2Photo 2 of MARKGOO 99370A2 Water Shutter Assembly for MerCruiser Sterndrive R MR Alpha One V6 V8 4.3L 5.0L 5.7L Engine Outdrive Boat Motor Exhaust Flapper Sierra 18-2733 92802 99370A-2