• Designed for use in Mercruiser Bravo units
• Includes (1) Sierra 18-0318 Washer and (1) Nut (0.375-24)
•Interchangeable with Mallory 9-72156, GLM 21711, and Mercruiser Stern Drive 19297A3, 43432A2, 815471A3, 815471A5, 815471A6, and 865437A02
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