Harley Davidson FLFB Fat Boy Replacement Air Filters

Buy now from K&N's Online Store and get a 100% money back guarantee on any Harley Davidson FLFB Fat Boy air filter!

  • Designed to Increase Horsepower and Acceleration
  • High Air Flow with Excellent Filtration
  • Top Performance Accessory for Harley Davidson FLFB Fat Boy Models
  • K&N Million Mile Limited Warranty®

Order your K&N replacement air filter Factory Direct today! Help your Harley Davidson FLFB Fat Boy run better. Fast and FREE SHIPPING with any Harley Davidson FLFB Fat Boy air filter

  1. 2019 Harley Davidson FLFB Fat Boy 107 CI air filter
    Special Price £56.19 Regular Price £74.99
    HD-1718
    K&N
  2. 2018 Harley Davidson FLFB Fat Boy 107 CI air filter
    Special Price £56.19 Regular Price £74.99
    HD-1718
    K&N
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