Sierra 18-2772-1 Transom Seal Kit Sierra replacement transom seal kit for Volvo Penta and OMC SX Cobra sterndrives. Fits OMC SX Cobra Drives with cone clutch Fits Volvo SX Drives Kit Contains 18-1074 Exhaust bellows 18-2100 Heavy duty gimbal bearing 18-7153-9 O-Ring priced per pkg of 5 18-2765 U-Joint bellows 18-710-64-2 Hose Clamp 3-916 to 4-12 18-710-48-2 Hose Clamp 2-916 to 3-12 Interchangeable with Mallory 9-72931 California Residents WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov