Sierra Exhaust Manifold for MerCruiser Manifolds/Risers/Elbows

Sierra exhaust manifolds for MerCruiser marine engines are replacement exhaust manifolds for sterndrive and inboard applications. They collect exhaust gases from the engine cylinders and direct them toward the riser, elbow and exhaust system. Sierra is a well-known marine parts brand, and this line is designed as an aftermarket alternative to the original equipment parts.

Key Features:

• Built as a direct replacement for the original MerCruiser exhaust manifold
• Designed for the heat, moisture and corrosion of marine use
• Water-jacketed passages help cool exhaust gases and manifold surfaces
• Made to match the original mounting and port layout for a proper fit and seal
• Part of Sierra's wide range of marine manifolds, risers and elbows

Cracked, corroded or leaking manifolds can allow water or exhaust gases to enter the engine and cause damage. Replacing them helps restore reliable engine performance. Each part number in this line is made for specific MerCruiser engine configurations. Use the individual item listings to choose the correct manifold.