Since 1978, TransTec® brand automatic transmission seal kits have been synonymous with the highest quality and dependability. As a brand of Freudenberg-NOK Sealing Technologies, the world’s largest producer of sealing products, TransTec is the only kit packager that is also an original equipment manufacturer of transmission components, TransTec is also ISO-certified for the quality assurance you can’t get anywhere else. It’s one of the reasons why more transmission professionals install TransTec kits than all other kits combined.