OMC Manifold End Cap Gasket | Sierra 18-2861-1

OMC Manifold End Cap Gasket | Sierra 18-2861-1

Gasket for front end cap of OMC inline 4 & 6 cylinder exhaust manifolds from 1971 to 1990.

• Sierra exhaust end cap gasket
• For various OMC 100, 120, 140, 165, 2.5L, & 3.0L stern drive marine engines from 1971-1990
• Replaces OMC 311121
• Replaces Sierra 18-2861