The Drum Seal is an OEM part for LG dryers. This part ensures a tight seal between the dryer drum and the dryer body, preventing hot air from escaping and maintaining the efficiency of the drying process. A well-functioning drum seal is important for the best dryer performance, contributing to energy efficiency and the prevention of unnecessary wear on clothing during the drying cycle. Causes of a bad drum seal can range from natural wear and tear over time to overloading the dryer, which can strain and stretch the seal, leading to a poor fit.   Symptoms of a bad Drum Seal include: Clothes taking longer to dry Increased energy usage due to loss of heat Excessive lint and debris outside of the lint filter area A noticeable gap between the dryer drum and the dryer body This OEM LG part is also compatible with some Kenmore models.Part Number 4036EL3001A (AP4438638) replaces 1267485, AH3522851, EA3522851, PS3522851.