Mercury - Exhaust Manifold - Fits 2008 and newer MCM/MIE V‑8 EC Engines - 8M0103774 Mercury 25-30 EFI Outboard Parts & Service Kits (2005 & Older) It’s specifically designed for Mercury

It’s specifically designed for Mercury 4-stroke carbureted 15hp and 20hp engines within the serial range 0R235949–0R833819

because well-protected metal doesn’t lie—it stays smooth

but they often lack the engineering precision and durable construction required for marine environments

Replacing a damaged or degraded isolator port

This product has been superseded by 990C0-00510-26P - 4B 15

Mercury - Exhaust Manifold - Fits 2008 and newer MCM/MIE V‑8 EC Engines - 8M0103774 Mercury 25-30 EFI Outboard Parts & Service Kits (2005 & Older) It’s specifically designed for MercuryMANIFOLD EXH EC PORT WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings. ca. gov.