18-4160 - Piston, 733-3818

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Part Number

Sierra Marine

Replaces OEM 3853477.

18-4160 .020 Piston

Replaces: Mercury 733-3818

Warranty (PDF)
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Sierra Marine Piston is equivalent to parts:

Sierra Marine is the market leader for aftermarket marine engine parts. Sierra products cover every major engine brand. Sierra offers a comprehensive product line and an unsurpassed customer satisfaction warranty covering parts and labor.