New Arrivals/Restock

Replace your rusty, cracked or just poor performing Mercruiser Exhaust Marine Manifold (Part No. B63122A1) on your Mercruiser Chevrolet Engine with a Direct Replacement Mercruiser 120hp Exhaust Manifold, MC-1-63122. Barr has been building quality marine products for nearly 80 years. Manifolds by Barr are covered by a manufacturer's 3-year warranty. We recommend that you purchase replacement manifolds in pairs and to also replace the risers and elbows at the same time.

Made in the USA

• Fits 120hp 153 cu. In. 4 cylinder 1968-82
• Replaces Mercruiser # B63122A1
• Manifold includes mounting hardware, gaskets and plugs

Get back that new boat feel! Barr Manifolds are designed to reduce back-pressure and often when replacing OEM-installed manifolds, more horsepower is achieved.

When choosing a Manifold, it is recommended to also choose the appropriate new risers / elbows. Although Manifolds such as Barr, Osco and others including original equipment often look alike, it is recommended to buy manifolds and risers as sets. Where applicable, buy replacement manifolds in pairs and be sure to include the appropriate riser / elbow.

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