OMC Manifold End Plate Gasket | Barr OMC47-311131End gasket for OMC 225 HP & 245 HP marine engines with log style exhaust manifolds. Barr OMC end plate gasket For OMC 225 HP and 245 HP marine engines with log style exhaust manifolds from 1968-1972 Fits between elbow and manifold Replaces OMC 311131