Harley Davidson FXDF Fat Bob Performance Cold Air Intakes

Buy now from the K&N Store and get a 100% Money Back Guarantee on any cold air intake system!

  • Designed to increase power and torque
  • K&N Million Mile Limited Warranty®
  • Replaces restrictive factory air intake system
  • Easy to install performance, usually in 90 minutes or less

Add more horsepower to your Harley Davidson FXDF Fat Bob with a K&N cold air intake system. K&N Harley Davidson FXDF Fat Bob cold air intakes are easy to install and add power & acceleration while protecting the vehicle's engine.

  1. 2017 Harley Davidson FXDF Fat Bob 103 CI air intake
    $299.99 Regular Price $249.99 Special Price
    57-1125P
    K&N
  2. 2017 Harley Davidson FXDF Fat Bob 103 CI air intake
    $249.99 Regular Price $199.99 Special Price
    57-1137
    K&N
  3. 2017 Harley Davidson FXDF Fat Bob 103 CI air intake
    $199.99 Regular Price $149.99 Special Price
    57-1137S
    K&N
  4. 2017 Harley Davidson FXDF Fat Bob 103 CI air intake
    $299.99 Regular Price $249.99 Special Price
    57-1125
    K&N
  5. 2016 Harley Davidson FXDF Fat Bob 103 CI air intake
    $299.99 Regular Price $249.99 Special Price
    57-1125
    K&N
  6. 2016 Harley Davidson FXDF Fat Bob 103 CI air intake
    $299.99 Regular Price $249.99 Special Price
    57-1125P
    K&N
  7. 2016 Harley Davidson FXDF Fat Bob 103 CI air intake
    $249.99 Regular Price $199.99 Special Price
    57-1137
    K&N
  8. 2016 Harley Davidson FXDF Fat Bob 103 CI air intake
    $199.99 Regular Price $149.99 Special Price
    57-1137S
    K&N
  9. 2015 Harley Davidson FXDF Fat Bob 103 CI air intake
    $299.99 Regular Price $249.99 Special Price
    57-1125
    K&N
  10. 2015 Harley Davidson FXDF Fat Bob 103 CI air intake
    $299.99 Regular Price $249.99 Special Price
    57-1125P
    K&N
  11. 2014 Harley Davidson FXDF Fat Bob 103 CI air intake
    $299.99 Regular Price $249.99 Special Price
    57-1125
    K&N
  12. 2014 Harley Davidson FXDF Fat Bob 103 CI air intake
    $299.99 Regular Price $249.99 Special Price
    57-1125P
    K&N
  13. 2013 Harley Davidson FXDF Fat Bob 103 CI air intake
    $299.99 Regular Price $249.99 Special Price
    57-1125P
    K&N
  14. 2013 Harley Davidson FXDF Fat Bob 103 CI air intake
    $299.99 Regular Price $249.99 Special Price
    57-1125
    K&N
  15. 2012 Harley Davidson FXDF Fat Bob 103 CI air intake
    $299.99 Regular Price $249.99 Special Price
    57-1125
    K&N
  16. 2012 Harley Davidson FXDF Fat Bob 103 CI air intake
    $299.99 Regular Price $249.99 Special Price
    57-1125P
    K&N
  17. 2011 Harley Davidson FXDF Fat Bob 96 CI air intake
    $299.99 Regular Price $249.99 Special Price
    57-1125P
    K&N
  18. 2011 Harley Davidson FXDF Fat Bob 96 CI air intake
    $299.99 Regular Price $249.99 Special Price
    57-1125
    K&N
  19. 2010 Harley Davidson FXDF Fat Bob 96 CI air intake
    $299.99 Regular Price $249.99 Special Price
    57-1125
    K&N
  20. 2010 Harley Davidson FXDF Fat Bob 96 CI air intake
    $299.99 Regular Price $249.99 Special Price
    57-1125P
    K&N
  21. 2009 Harley Davidson FXDF Fat Bob 96 CI air intake
    $299.99 Regular Price $249.99 Special Price
    57-1125
    K&N
  22. 2009 Harley Davidson FXDF Fat Bob 96 CI air intake
    $299.99 Regular Price $249.99 Special Price
    57-1125P
    K&N
  23. 2008 Harley Davidson FXDF Fat Bob 96 CI air intake
    $299.99 Regular Price $249.99 Special Price
    57-1125
    K&N
  24. 2008 Harley Davidson FXDF Fat Bob 96 CI air intake
    $299.99 Regular Price $249.99 Special Price
    57-1125P
    K&N
Search By Vehicle
Find Parts for your vehicle
*
Search By Dimension
The item you added to cart DOES NOT FIT your
This item fits your

The item(s) below fits your vehicle