Exhaust Manifold Riser Gasket SIERRA 118-2875-1-9

Compatible Engines

The SIERRA 118-2875-1-9 exhaust manifold riser gasket is a critical component of your boat's cooling and exhaust system, designed for maximum reliability. This part seals the connection between the engine block and the exhaust manifold, preventing dangerous leaks of exhaust gases and cooling water. Manufactured by SIERRA, this gasket ensures long-lasting durability and a tight seal, even in harsh marine environments.

Important: Due to manufacturing variations, compatibility with specific engine models (such as OMC, Volvo Penta, or Mercury) must be verified individually. We strongly recommend comparing the catalog number 118-2875-1-9 with your engine's technical documentation. If you have any doubts about part selection, please contact our customer support team for assistance.

Installation and Maintenance

Replacing this gasket is a preventive maintenance step that should be performed regularly. Before installation, ensure that all mating surfaces are clean and free of corrosion to guarantee a perfect seal. Avoid over-tightening bolts to prevent damaging the gasket material or the threads. Regular inspection of the gasket condition helps prevent costly failures and extends the life of the entire exhaust system.

• SIERRA Quality – High resistance to heat and corrosion.
• Precision Fit – Ensures perfect sealing of the exhaust riser.
• Long Service Life – Protects against exhaust and water leaks.
• Easy Replacement – Standard service part for outboard engines.