Sierra Marine Exhaust Manifolds

4.38 out of 5 stars 16 Customer Reviews

Sierra Marine exhaust manifolds are painted, packaged, and leak-tested. Your boat's exhaust manifold will not last forever and ignoring it could lead to engine problems. Sierra Marine offers a vast selection of quality units that will allow you to replace your corroded manifold, avert problems, and enjoy trouble-free service.

Results 1 - 12 of 12

Sierra Marine Exhaust Manifolds 18-1997-1

Marine Exhaust Manifolds, Cast Iron, Black, Chevy, Small Block, Barr CHV-1-83 Center Riser, Each

Part Number: RRA-18-1997-1

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

Sierra Marine Exhaust Manifolds 18-1998-1

Marine Exhaust Manifolds, Cast Iron, Black, Ford, Small Block Windsor, Barr FM-1-83 Center Riser, Each

Part Number: RRA-18-1998-1

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Dec 11, 2025 if ordered today

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Estimated Ship Date: Dec 11, 2025 if ordered today

Sierra Marine Exhaust Manifolds 18-1904

Marine Exhaust Manifolds, Cast Iron, Black, Ford, Small Block, Each

Part Number: RRA-18-1904

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 11, 2025 if ordered today

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Estimated Ship Date: Dec 11, 2025 if ordered today

Sierra Marine Exhaust Manifolds 18-1966-1

Manifold

Part Number: RRA-18-1966-1

Not Yet Reviewed

Estimated Ship Date: Dec 12, 2025 if ordered today

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Estimated Ship Date: Dec 12, 2025 if ordered today

Sierra Marine Exhaust Manifolds 18-1952-1

Marine Exhaust Manifolds, Cast Iron, Black, Chevy, V6, Each

Part Number: RRA-18-1952-1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

Sierra Marine Exhaust Manifolds 18-1843

Marine Exhaust Manifolds, Cast Iron, Black, Chevy, Small Block, Dry Joint Applications Only, Each

Part Number: RRA-18-1843

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

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Estimated Ship Date: Monday 11/10/2025

Sierra Marine Exhaust Manifolds 18-1956-3

Manifold

Part Number: RRA-18-1956-3

Not Yet Reviewed

Estimated Ship Date: Dec 11, 2025 if ordered today

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Estimated Ship Date: Dec 11, 2025 if ordered today

Sierra Marine Exhaust Manifolds 18-1929

Marine Exhaust Manifolds, Cast Iron, Black, Chevy, Big Block, Crusader, Port, Each

Part Number: RRA-18-1929

Not Yet Reviewed

Estimated Ship Date: Dec 11, 2025 if ordered today

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Estimated Ship Date: Dec 11, 2025 if ordered today

Sierra Marine Exhaust Manifolds 18-1848

Marine Exhaust Manifolds, Cast Iron, Black, Chevy, V6, Each

Part Number: RRA-18-1848

Not Yet Reviewed

Estimated Ship Date: Dec 11, 2025 if ordered today

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Estimated Ship Date: Dec 11, 2025 if ordered today

Sierra Marine Exhaust Manifolds 18-1933

Marine Exhaust Manifolds, Cast Iron, Black, Chevy, Big Block, Crusader, Starboard, Each

Part Number: RRA-18-1933

Not Yet Reviewed

Estimated Ship Date: Dec 11, 2025 if ordered today

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Estimated Ship Date: Dec 11, 2025 if ordered today

Sierra Marine Exhaust Manifolds 18-1932

Marine Exhaust Manifolds, Cast Iron, Black, Chevy, V6, Each

Part Number: RRA-18-1932

Not Yet Reviewed

Estimated Ship Date: Dec 11, 2025 if ordered today

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Estimated Ship Date: Dec 11, 2025 if ordered today

Sierra Marine Exhaust Manifolds 18-1958-1

Marine Exhaust Manifolds, Cast Iron, Black, Ford, Small Block, Each

Part Number: RRA-18-1958-1

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 11, 2025 if ordered today

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Estimated Ship Date: Dec 11, 2025 if ordered today

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