National 4577 Auto Trans Torque Conv. Seal

The National 4577 is a precision-engineered torque converter seal designed for automatic transmission systems. This OEM-quality component prevents fluid leakage and maintains optimal hydraulic pressure within the torque converter, ensuring smooth power transfer and transmission efficiency. Built to withstand high temperatures and constant rotational stress, it delivers reliable performance and extends transmission life. Ideal for mechanics and DIY enthusiasts seeking dependable replacement parts that meet factory specifications.