Sierra Exhaust Manifold Gasket 18-2912-1, Replaces 27-53354
Sierra Exhaust Manifold Gasket 18-2912-1, Replaces 27-53354
The Sierra 18-2912-1 is an exhaust manifold gasket engineered to seal the mating surface between the exhaust manifold and the engine block on marine engines. It is designed as a direct-fit replacement for OEM gasket 27-53354, restoring a tight seal that prevents exhaust leaks, loss of cooling water pressure, and the corrosion that follows a failed gasket. Installing a fresh manifold gasket during routine maintenance or whenever the manifold is removed for inspection, cleaning, or replacement helps protect surrounding components from exhaust gas and water intrusion.
This gasket is supplied in a white finish and is sold individually. Sierra manufactures its exhaust manifold gaskets to marine-grade tolerances so the part seats correctly against the manifold flange without leaks under the heat cycling and vibration typical of inboard and sterndrive engine operation. Because exhaust manifold gaskets are wear items that lose their seal over time, replacing the gasket any time the manifold is disturbed is standard practice to avoid a repeat leak shortly after reassembly.
Specifications
- Brand: Sierra
- Manufacturer Part Number: 18-2912-1
- Product Type: Exhaust Manifold Gasket
- Color: White
- Weight: 0.29 pounds
- UPC: 808282365844
- Packaging: Sold individually
Fitment
Fits applications that use OEM exhaust manifold gasket 27-53354. Confirm your engine's original gasket part number against 27-53354 before ordering.
Replaces (OEM)
- 27-53354
Frequently Asked Questions
What does the Sierra 18-2912-1 gasket replace? The Sierra 18-2912-1 exhaust manifold gasket is a direct replacement for OEM gasket 27-53354.
Is the 18-2912-1 gasket sold as a single gasket or a set? The 18-2912-1 is sold individually as one exhaust manifold gasket.
How much does the 18-2912-1 exhaust manifold gasket weigh? It weighs 0.29 pounds.
What color is the Sierra 18-2912-1 gasket? This gasket has a white finish.
What is the UPC for the Sierra 18-2912-1 gasket? The UPC is 808282365844.
When should I replace this exhaust manifold gasket? Replace the 18-2912-1 gasket any time the exhaust manifold is removed, or if you notice exhaust leaks, unusual exhaust noise, or corrosion around the manifold-to-block joint, since a used gasket rarely reseals reliably once disturbed.
Will the 18-2912-1 gasket fit my engine? The 18-2912-1 fits applications that originally used OEM gasket 27-53354; check your engine's existing gasket part number against 27-53354 to confirm fit before ordering.
Is Sierra 18-2912-1 a genuine OEM part or an aftermarket replacement? The 18-2912-1 is a Sierra-manufactured replacement gasket, cross-referenced to OEM part 27-53354, rather than a part sourced from the original engine manufacturer.
What material is the 18-2912-1 exhaust manifold gasket made from? The dossier for the 18-2912-1 does not specify the gasket material.
Does the 18-2912-1 gasket come with installation hardware? No, the 18-2912-1 is the gasket only; no bolts, studs, or additional hardware are included.
Why does an exhaust manifold need a gasket at all? The gasket seals the joint between the exhaust manifold and the engine block, preventing exhaust gas and cooling water leaks that can otherwise damage surrounding engine components.