Amsted (formerly Triseal)

Triseal is a descendant of Albert Trostel & Sons, a legendary Wisconsin company founded in 1858 that specialized in quality leather products. Trostel’s legacy in quality leather products continues through Triseal, now one of the top US manufacturers of two-piece leather wheel oil seals.

  • Hubodometers
  • Pinion Seals
  • Seal Installation Tools
  • Two-piece wheel seals
  • Unitized wheel seals
  • Wear Rings