Sierra International 18-2660 Marine Lower Unit Seal Kit for Johnson/Evinrude Outboard Motor Sierra Water Pump Housing Bushing Use with 18-3116 housing Sierra part number: 18-3110 Interchangeable with the following: GLM 12830, Mallory 9-43604, Mercruiser/Mercury 26-38970, 26-36557A1, 26-29677 Fit specific, check part numbers to ensure proper fit