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Ford Flex Replacement Air Filters

Buy now from K&N's Online Store and get a 100% money back guarantee on any Ford Flex air filter!

  • Designed to Increase Horsepower and Acceleration
  • High Air Flow with Excellent Filtration
  • Top Performance Accessory for Ford Flex Models
  • K&N Million Mile Limited Warranty®

Order your K&N replacement air filter Factory Direct today! Help your Ford Flex run better. Fast and FREE SHIPPING with any Ford Flex air filter

  1. 2019 Ford Flex 3.5L V6 Gas air filter
    $20.99
    KNA-2395
    K&N Long Life 18,000 Mile Engine Air Filter - FORD EDGE/ TAURUS/ TAURUS X/ LINCOLN MKZ/ MKX
  2. 2019 Ford Flex 3.5L V6 Gas air filter
    $36.99 Regular Price $29.59 Special Price
    KNX-2395
    K&N Extended Life 24,000 Mile Engine Air Filter - FORD EDGE/ TAURUS/ TAURUS X/ LINCOLN MKZ/ MKX
  3. 2019 Ford Flex 3.5L V6 Gas air filter
    $68.99 Regular Price $55.19 Special Price
    33-2395
    K&N
  4. 2018 Ford Flex 3.5L V6 Gas air filter
    $20.99
    KNA-2395
    K&N Long Life 18,000 Mile Engine Air Filter - FORD EDGE/ TAURUS/ TAURUS X/ LINCOLN MKZ/ MKX
  5. 2018 Ford Flex 3.5L V6 Gas air filter
    $36.99 Regular Price $29.59 Special Price
    KNX-2395
    K&N Extended Life 24,000 Mile Engine Air Filter - FORD EDGE/ TAURUS/ TAURUS X/ LINCOLN MKZ/ MKX
  6. 2018 Ford Flex 3.5L V6 Gas air filter
    $68.99 Regular Price $55.19 Special Price
    33-2395
    K&N
  7. 2017 Ford Flex 3.5L V6 Gas air filter
    $36.99 Regular Price $29.59 Special Price
    KNX-2395
    K&N Extended Life 24,000 Mile Engine Air Filter - FORD EDGE/ TAURUS/ TAURUS X/ LINCOLN MKZ/ MKX
  8. 2017 Ford Flex 3.5L V6 Gas air filter
    $68.99 Regular Price $55.19 Special Price
    33-2395
    K&N
  9. 2017 Ford Flex 3.5L V6 Gas air filter
    $20.99
    KNA-2395
    K&N Long Life 18,000 Mile Engine Air Filter - FORD EDGE/ TAURUS/ TAURUS X/ LINCOLN MKZ/ MKX
  10. 2016 Ford Flex 3.5L V6 Gas air filter
    $36.99 Regular Price $29.59 Special Price
    KNX-2395
    K&N Extended Life 24,000 Mile Engine Air Filter - FORD EDGE/ TAURUS/ TAURUS X/ LINCOLN MKZ/ MKX
  11. 2016 Ford Flex 3.5L V6 Gas air filter
    $20.99
    KNA-2395
    K&N Long Life 18,000 Mile Engine Air Filter - FORD EDGE/ TAURUS/ TAURUS X/ LINCOLN MKZ/ MKX
  12. 2016 Ford Flex 3.5L V6 Gas air filter
    $68.99 Regular Price $55.19 Special Price
    33-2395
    K&N
  13. 2015 Ford Flex 3.5L V6 Gas air filter
    $20.99
    KNA-2395
    K&N Long Life 18,000 Mile Engine Air Filter - FORD EDGE/ TAURUS/ TAURUS X/ LINCOLN MKZ/ MKX
  14. 2015 Ford Flex 3.5L V6 Gas air filter
    $36.99 Regular Price $29.59 Special Price
    KNX-2395
    K&N Extended Life 24,000 Mile Engine Air Filter - FORD EDGE/ TAURUS/ TAURUS X/ LINCOLN MKZ/ MKX
  15. 2015 Ford Flex 3.5L V6 Gas air filter
    $68.99 Regular Price $55.19 Special Price
    33-2395
    K&N
  16. 2014 Ford Flex 3.5L V6 Gas air filter
    $20.99
    KNA-2395
    K&N Long Life 18,000 Mile Engine Air Filter - FORD EDGE/ TAURUS/ TAURUS X/ LINCOLN MKZ/ MKX
  17. 2014 Ford Flex 3.5L V6 Gas air filter
    $36.99 Regular Price $29.59 Special Price
    KNX-2395
    K&N Extended Life 24,000 Mile Engine Air Filter - FORD EDGE/ TAURUS/ TAURUS X/ LINCOLN MKZ/ MKX
  18. 2014 Ford Flex 3.5L V6 Gas air filter
    $68.99 Regular Price $55.19 Special Price
    33-2395
    K&N
  19. 2013 Ford Flex 3.5L V6 Gas air filter
    $36.99 Regular Price $29.59 Special Price
    KNX-2395
    K&N Extended Life 24,000 Mile Engine Air Filter - FORD EDGE/ TAURUS/ TAURUS X/ LINCOLN MKZ/ MKX
  20. 2013 Ford Flex 3.5L V6 Gas air filter
    $20.99
    KNA-2395
    K&N Long Life 18,000 Mile Engine Air Filter - FORD EDGE/ TAURUS/ TAURUS X/ LINCOLN MKZ/ MKX
  21. 2013 Ford Flex 3.5L V6 Gas air filter
    $68.99 Regular Price $55.19 Special Price
    33-2395
    K&N
  22. 2012 Ford Flex 3.5L V6 Gas air filter
    $20.99
    KNA-2395
    K&N Long Life 18,000 Mile Engine Air Filter - FORD EDGE/ TAURUS/ TAURUS X/ LINCOLN MKZ/ MKX
  23. 2012 Ford Flex 3.5L V6 Gas air filter
    $36.99 Regular Price $29.59 Special Price
    KNX-2395
    K&N Extended Life 24,000 Mile Engine Air Filter - FORD EDGE/ TAURUS/ TAURUS X/ LINCOLN MKZ/ MKX
  24. 2012 Ford Flex 3.5L V6 Gas air filter
    $68.99 Regular Price $55.19 Special Price
    33-2395
    K&N
  25. 2011 Ford Flex 3.5L V6 Gas air filter
    $20.99
    KNA-2395
    K&N Long Life 18,000 Mile Engine Air Filter - FORD EDGE/ TAURUS/ TAURUS X/ LINCOLN MKZ/ MKX
  26. 2011 Ford Flex 3.5L V6 Gas air filter
    $36.99 Regular Price $29.59 Special Price
    KNX-2395
    K&N Extended Life 24,000 Mile Engine Air Filter - FORD EDGE/ TAURUS/ TAURUS X/ LINCOLN MKZ/ MKX
  27. 2011 Ford Flex 3.5L V6 Gas air filter
    $68.99 Regular Price $55.19 Special Price
    33-2395
    K&N
  28. 2010 Ford Flex 3.5L V6 Gas air filter
    $36.99 Regular Price $29.59 Special Price
    KNX-2395
    K&N Extended Life 24,000 Mile Engine Air Filter - FORD EDGE/ TAURUS/ TAURUS X/ LINCOLN MKZ/ MKX
  29. 2010 Ford Flex 3.5L V6 Gas air filter
    $20.99
    KNA-2395
    K&N Long Life 18,000 Mile Engine Air Filter - FORD EDGE/ TAURUS/ TAURUS X/ LINCOLN MKZ/ MKX
  30. 2010 Ford Flex 3.5L V6 Gas air filter
    $68.99 Regular Price $55.19 Special Price
    33-2395
    K&N
  31. 2009 Ford Flex 3.5L V6 Gas air filter
    $68.99 Regular Price $55.19 Special Price
    33-2395
    K&N
  32. 2009 Ford Flex 3.5L V6 Gas air filter
    $20.99
    KNA-2395
    K&N Long Life 18,000 Mile Engine Air Filter - FORD EDGE/ TAURUS/ TAURUS X/ LINCOLN MKZ/ MKX
  33. 2009 Ford Flex 3.5L V6 Gas air filter
    $36.99 Regular Price $29.59 Special Price
    KNX-2395
    K&N Extended Life 24,000 Mile Engine Air Filter - FORD EDGE/ TAURUS/ TAURUS X/ LINCOLN MKZ/ MKX
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