18-4626 - Piston 3.5 Inch 2704-826191T4 Standard

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Sierra Marine

18-4626 Standard Piston Mercury 2704-826191T4

Please note: Sierra pistons 18-4626, 18-4627, and 18-4628 are nominally 3.5 inch diameter and oversized as indicated. Some of the Sierra catalog pages have an error indicating that these pistons are 3.375 inch diameter, they are actually 3.5 inch. Thanks.

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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.