Ultimate Series

The Ultimate Series from Amsted Seals provides the longest maintenance-free service intervals, and when combined with other Amsted Seals premium wheel-end products, the longest warranted service performance in the industry. Providing faster and more error-free installations than conventional heavy duty wheel seals, this hand-installable series of seals features HNBR (premium nitrile) sealing surfaces on both the ID and OD surfaces, an industry first. 


  • Easily installable by hand or with any flat tool
  • Manufactured with advanced formula HNBR on all sealing lip and OD surfaces
  • Premium sealing lip is protected by four contaminant exclusion barriers
  • Widest available axle shoulder coverage in the industry
  • Extended temperature range of -15°F to 250°F (-25°C to 120°C)
  • Meets or exceeds performance and warranty features of all competitors’ wheel seals
  • 2-year limited warranty


  • The combination ribbed rubber OD with piloted installation guide allows for accurate, easy and square installation to reduce cocked seals
  • New advanced material extends the service life in extreme temperature environments including hot starts and braking
  • Superior contamination prevention system prevents dirt and other debris from causing premature seal failure
  • Provides superior sealing benefits on damaged and worn axles
  • Designed to withstand the industry’s most demanding vehicle environments
  • Advanced material provides superior performance over a wide range of operating environments
  • Great for long life services