Riser Elbow Exhaust for Mercruiser 3.7L 224 for Iron Manifold with Reservoir

  • Part #: OSC0879

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Riser Exhaust for a Mercruiser. It is used on a 3.7L 4-cylinder with a Cast Iron Manifold. It comes with the pressure cap and uses Osco # 0879-G riser gasket
Replaces: Mercury Quicksilver # 90880; Barr # MC-20-90880; Sierra # 18-1905; Mallory # 9-40550
Barr Manifolds and Risers come with a 3-year limited warranty (PDF)!




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