In order to support automatic transmission manufacturers continually developing new designs that accelerate automatic transmission state-of-the-art, NAK has developed a complete range of bonded piston seals for automatic transmission to offer longer service life and premium efficiency in technical performance.

Benefits of NAK Bonded Piston Seals:

  • Cost-effective
  • Ease of installation
  • Integrated characteristics
  • Robust design


NAK transmission input seal has an excellent sealing contact between the seal I.D and shaft to retain the lubricant; output seal has special design of multiple dust lips those can provide better protection against contaminations.