Sierra 18-2613 OMC Cobra Sterndrive Outdrive Gasket Set For Use On All OMC Clutch Dog Cobra Sterndrives 1986 - 1993. Not For Use On King Cobra Sterndrives. Sierra replacement parts are manufactured to meet or exceed OEM requirements. Kit Includes 1 18-2918 Outdrive Gasket 1 18-2996 Outdrive Seal 2 18-7153 O-Ring Interchangeable with GLM 39630 Mallory 9-62605 OMC Stern Drive 0508105 California Residents WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov Other Details Google Product Type En