315868 OMC GASKET

OEM OMC 315868 is an inner exhaust gasket designed specifically for Johnson Evinrude 50 HP and 55 HP two-cylinder outboard engines. This gasket seals the inner exhaust cover, preventing water intrusion and exhaust gas leakage. Cross-references to part numbers 18-1218 and 34800. Two-cylinder engines require precise gasket sizing for proper cooling jacket integrity. Fits Johnson Evinrude 2-cyl 50/55 models. Replace during routine maintenance or when water intrusion or exhaust odor appears. Critical for maintaining proper engine cooling circuit pressure.