Limited run of alternator underdrive pullies


  • 6061 Aluminum
  • Hard anodized black for wear resistance
  • Works with both Miata NA or NB alternators
  • Fits 2 different alternator shaft sizes (select appropriate option)


Alternator underdrive pulley

  • Mazda B series alternators. B3/B6/BP

    You need to verify shaft size of your alternator to ensure you get the correct part.

    Small shaft--15mm

    Large shaft--17mm

  • This item will ship USPS Priority mail

©2018 by KAi. Proudly created with