Latest addition to the National DYNAMIC EDGE oil seal line - the Red 375 Series featuring application-specific hand installable design making the job faster and easier.
Hand Installable Feature
National's proprietary hand installable design feature eliminates the need for an installation tool, making the job faster and easier.
DYNAMIC EDGE Technology
Exclusive DYNAMIC EDGE technology is an innovative system engineered to deflect dirt and moisture away from wheel end components. In addition, the rubber is configured for easier installation.