Direct Replacement Mercruiser 120hp 4 Cylinder Exhaust Manifold, MC-1-63122


Direct Replacement Mercruiser 120hp 4 Cylinder Exhaust Manifold, MC-1-63122
SKU: 46870
Mfg# MC-1-63122
LFS# BARMC163122
UNIT: Each
Out of stock - Typically Available in 3 - 6 Weeks


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. These steps will help ensure compatibility and reliable operation of your marine engines exhaust system for years to (more...)

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Great Company !


I've purchased from this company for several years. As usual, their web site is easy to navigate, descriptions are accurate and they have what you need! And of course Great Prices!!




Unless specifically indicated otherwise, Barr Marine by EDM warrants its products against defects in workmanship and material for 1-3 years from date of purchase by the original purchaser depending on the product and the warranty included with the product.

  • Restocking charge will apply at a minimum of 25% for all product returned.
  • All Returns must be returned within 30 days of receipt of the items.
  • Some products are non-returnable, please contact us for further details.
  • Manufacturer defects reported within 30 days of receipt will be supplied a pre-paid label for return shipping upon approval.
  • Please contact Go2marine LFS Marine and Outdoor for Manufacture Defects, Returns and help with Warranties.