Oil seals, also known as shaft seals or grease seals, are critical components used to prevent fluid leakage and keep contaminants out of various automotive systems such as the engine, transmission, differentials and wheel hubs. They are typically made of durable rubber or synthetic materials with a metal reinforcement ring, designed to seal the gap between stationary and moving parts like rotating shafts and housings.

Oil seals maintain proper lubrication by keeping oil or grease in while protecting internal components from dirt, dust and moisture. When an oil seal wears out or gets damaged, it can lead to fluid leaks, reduced lubrication, overheating and eventual damage to critical parts. Regular inspection and timely replacement of oil seals are essential for preserving the performance and longevity of your vehicle’s engine and drivetrain components.