The Cam Motor Shaft Seal is an OEM part for LG dishwashers. It provides a watertight seal around the cam motor shaft, preventing water from leaking into the motor and other electrical components. This seal is essential for maintaining the efficiency and safety of the dishwasher. You should replace the cam motor shaft seal if it becomes worn out or damaged. Common causes of a bad shaft seal include regular wear and tear, exposure to high temperatures and chemicals from detergents, or improper installation. A compromised seal can lead to leaks and potential damage to the motor. Symptoms of a bad cam motor shaft seal include: Water leaks from the bottom of the dishwasher Unusual noises during the wash cycle Reduced efficiency in cleaning due to water escaping Visible damage or wear on the seal This OEM LG part is also compatible with Sears/Kenmore models.Part Number 3920ED4009B (AP4440756) replaces 1267457, AH3522655, EA3522655, PS3522655.