Sierra clutch housing seal kit for OMC engine. For all models 1977 and older. Sierra Part #18-2698.Kit Contains:(1) O-Ring (18-7114) - OE #302540(1) O-Ring (18-7400) - OE #908194(1) Oil Seal (18-7952) - OE #911019(1) Gasket Cover (18-2863) - OE #308799(1) Oil Drain Gasket (18-4248) - OE #311598(1) Dipstick Gasket (18-0939) - OE #315189 For OMC engine | Clutch Housing Seal Kit For OMC Engine, Part #18-2698