Gasket assemblies for freezer and refrigerator doors, compatible with LG and Sears-Kenmore appliances, are readily accessible. The freezer door gasket, identified by part number 4987JJ1010Q, functions to effectively block warm air by ensuring a tight seal on the door. To maintain optimal performance, address any creases by immersing the gasket in warm water or by gently heating it with a hair dryer. During the gasket replacement process, care should be taken to store perishable foods securely while the appliance door remains open.