Mercury - Quicksilver Bell Housing Installation Gasket Kit Marine Seal Kit MerCruiser MC Drives 64818Q4. Overview. A solid seal means fewer problems down the line. The Mercury Marine 64818Q4 Quicksilver Bell Housing Installation Gasket Kit gives you all five gaskets needed to reinstall the bell housing on MerCruiser MC drives. Each gasket is precision-cut and made from durable marine-grade material that stands up to water, heat, and vibration. When you're reassembling your drive, replacing every