18-1939 - Riser

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Part Number

Sierra Marine


Replaces: Barr 20-0100, Marine Power 0992-593 Barr, Indmar and Marine Power Ford Small Block V8 302-351cu. in. GM Small Block V8 305-350cu. in., GM Big Block V8 454cu in.

• Use with 3 1/2” hose.   

Use with: Manifold: 18-1997-1, 18-1998-1, 18-1898 Riser Gasket: 18-2854 open or 18-0476-1 blocked Mounting Kit: 18-4364 open or 18-8535 blocked

Warranty (PDF)
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Sierra Marine Riser 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.