203006 is a National wheel seal. Its job is to keep lubricant at the wheel end where it belongs and to keep dirt and moisture away from the bearing. Pro Gear and Transmission sells it as a genuine National part. Call us if you want help matching it to your application. It is listed in our National Seals category alongside related National seals and O-rings.FeaturesNational wheel sealRetains lubricant at the wheel endGenuine National partTech SpecsBrand: NationalPart type: Wheel Seal