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Smart Forfour Replacement Air Filters

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

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

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

  1. 2018 Smart Forfour 1.0L L3 Gas air filter
    Special Price RSD 5,799.48 Regular Price RSD 7,733.02
    33-3043
    K&N
  2. 2018 Smart Forfour 0.9L L3 Gas air filter
    Special Price RSD 5,799.48 Regular Price RSD 7,733.02
    33-3043
    K&N
  3. 2017 Smart Forfour 1.0L L3 Gas air filter
    Special Price RSD 5,799.48 Regular Price RSD 7,733.02
    33-3043
    K&N
  4. 2017 Smart Forfour 0.9L L3 Gas air filter
    Special Price RSD 5,799.48 Regular Price RSD 7,733.02
    33-3043
    K&N
  5. 2016 Smart Forfour 1.0L L3 Gas air filter
    Special Price RSD 5,799.48 Regular Price RSD 7,733.02
    33-3043
    K&N
  6. 2016 Smart Forfour 0.9L L3 Gas air filter
    Special Price RSD 5,799.48 Regular Price RSD 7,733.02
    33-3043
    K&N
  7. 2015 Smart Forfour 0.9L L3 Gas air filter
    Special Price RSD 5,799.48 Regular Price RSD 7,733.02
    33-3043
    K&N
  8. 2015 Smart Forfour 1.0L L3 Gas air filter
    Special Price RSD 5,799.48 Regular Price RSD 7,733.02
    33-3043
    K&N
  9. 2014 Smart Forfour 1.0L L3 Gas air filter
    Special Price RSD 5,799.48 Regular Price RSD 7,733.02
    33-3043
    K&N
  10. 2014 Smart Forfour 0.9L L3 Gas air filter
    Special Price RSD 5,799.48 Regular Price RSD 7,733.02
    33-3043
    K&N
  11. 2006 Smart Forfour 1.5L L4 Gas air filter
    Special Price RSD 5,074.25 Regular Price RSD 6,765.66
    33-2881
    K&N
  12. 2006 Smart Forfour 1.1L L3 Gas air filter
    Special Price RSD 5,074.25 Regular Price RSD 6,765.66
    33-2881
    K&N
  13. 2006 Smart Forfour 1.3L L4 Gas air filter
    Special Price RSD 5,074.25 Regular Price RSD 6,765.66
    33-2881
    K&N
  14. 2005 Smart Forfour 1.5L L4 Gas air filter
    Special Price RSD 5,074.25 Regular Price RSD 6,765.66
    33-2881
    K&N
  15. 2005 Smart Forfour 1.1L L3 Gas air filter
    Special Price RSD 5,074.25 Regular Price RSD 6,765.66
    33-2881
    K&N
  16. 2005 Smart Forfour 1.3L L4 Gas air filter
    Special Price RSD 5,074.25 Regular Price RSD 6,765.66
    33-2881
    K&N
  17. 2004 Smart Forfour 1.3L L4 Gas air filter
    Special Price RSD 5,074.25 Regular Price RSD 6,765.66
    33-2881
    K&N
  18. 2004 Smart Forfour 1.5L L4 Gas air filter
    Special Price RSD 5,074.25 Regular Price RSD 6,765.66
    33-2881
    K&N
  19. 2004 Smart Forfour 1.1L L3 Gas air filter
    Special Price RSD 5,074.25 Regular Price RSD 6,765.66
    33-2881
    K&N
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