BMW 420i Replacement Air Filters

Buy now from K&N's Online Store and get a 100% money back guarantee on any BMW 420i air filter!

  • Designed to Increase Horsepower and Acceleration
  • High Air Flow with Excellent Filtration
  • Top Performance Accessory for BMW 420i Models
  • K&N Million Mile Limited Warranty®

Order your K&N replacement air filter Factory Direct today! Help your BMW 420i run better. Fast and FREE SHIPPING with any BMW 420i air filter

  1. 2023 BMW 420i 1.6L L4 Gas air filter
    Special Price €89.09 Regular Price €118.79
    33-3136
    K&N
  2. 2023 BMW 420i 2.0L L4 Gas air filter
    Special Price €89.09 Regular Price €118.79
    33-3136
    K&N
  3. 2022 BMW 420i 1.6L L4 Gas air filter
    Special Price €89.09 Regular Price €118.79
    33-3136
    K&N
  4. 2022 BMW 420i 2.0L L4 Gas air filter
    Special Price €89.09 Regular Price €118.79
    33-3136
    K&N
  5. 2021 BMW 420i 2.0L L4 Gas air filter
    Special Price €77.49 Regular Price €103.29
    33-3051
    K&N
  6. 2021 BMW 420i 2.0L L4 Gas air filter
    Special Price €89.09 Regular Price €118.79
    33-3136
    K&N
  7. 2021 BMW 420i 1.6L L4 Gas air filter
    Special Price €89.09 Regular Price €118.79
    33-3136
    K&N
  8. 2020 BMW 420i 2.0L L4 Gas air filter
    Special Price €77.49 Regular Price €103.29
    33-3051
    K&N
  9. 2019 BMW 420i 2.0L L4 Gas air filter
    Special Price €77.49 Regular Price €103.29
    33-3051
    K&N
  10. 2018 BMW 420i 2.0L L4 Gas air filter
    Special Price €77.49 Regular Price €103.29
    33-3051
    K&N
  11. 2017 BMW 420i 2.0L L4 Gas air filter
    Special Price €77.49 Regular Price €103.29
    33-3051
    K&N
  12. 2016 BMW 420i 2.0L L4 Gas air filter
    Special Price €77.49 Regular Price €103.29
    33-3051
    K&N
  13. 2015 BMW 420i 2.0L L4 Gas air filter
    Special Price €69.69 Regular Price €92.99
    33-2990
    K&N
  14. 2014 BMW 420i 2.0L L4 Gas air filter
    Special Price €69.69 Regular Price €92.99
    33-2990
    K&N
  15. 2013 BMW 420i 2.0L L4 Gas air filter
    Special Price €69.69 Regular Price €92.99
    33-2990
    K&N
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