807078A6-US Mercruiser EXHAUST MANIFOLD MC-1-89011

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If you order by the time below, this part ships today.

Overview 807078A6-US Mercruiser EXHAUST MANIFOLD MC-1-89011

This is a Barr Marine Part# MC-1-89011 807078A6 Mercruiser EXHAUST MANIFOLD Exhaust Manifold for Mercruiser Big Block 7.4L 454 applications. This center riser Exhaust Manifold was used on GM Big Block Engines From 1983 & up .


  • Mercury Quicksilver #s: 807078A6, 89011A8;
  • Barr # MC-1-89011;
  • GLM # 51240;
  • Sierra # 18-1957-1;
  • Mallory # 9-40506
All manifolds include riser gasket, manifold gasket, plug and T.

Days to Ship: Ships Today

Note:If it says “Ships Today” Orders placed M-F before 4pm Eastern Time will ship the same day. Orders placed after 4pm and on weekends will ship out the next business day.

Made in America
Return Policy

This is Not an Original Equipment Manufacturer (OEM) Part.

More Information
MPN 807078A6-US
Vendor Part Number MC-1-89011
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