Ford Focus IV Replacement Air Filters

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

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

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

  1. 2021 Ford Focus IV 1.0L L3 Petrol air filter
    Special Price £48.69 Regular Price £64.99
    33-3131
    K&N
  2. 2021 Ford Focus IV 1.5L L4 Petrol air filter
    Special Price £48.69 Regular Price £64.99
    33-3131
    K&N
  3. 2021 Ford Focus IV 2.0L L4 Diesel air filter
    Special Price £48.69 Regular Price £64.99
    33-3131
    K&N
  4. 2020 Ford Focus IV 1.5L L4 Diesel air filter
    Special Price £48.69 Regular Price £64.99
    33-3131
    K&N
  5. 2020 Ford Focus IV 2.0L L4 Diesel air filter
    Special Price £48.69 Regular Price £64.99
    33-3131
    K&N
  6. 2020 Ford Focus IV 1.0L L3 Petrol air filter
    Special Price £48.69 Regular Price £64.99
    33-3131
    K&N
  7. 2019 Ford Focus IV 1.0L L3 Petrol air filter
    Special Price £48.69 Regular Price £64.99
    33-3131
    K&N
  8. 2019 Ford Focus IV 1.5L L3 Petrol air filter
    Special Price £48.69 Regular Price £64.99
    33-3131
    K&N
  9. 2019 Ford Focus IV 2.0L L4 Diesel air filter
    Special Price £48.69 Regular Price £64.99
    33-3131
    K&N
  10. 2018 Ford Focus IV 1.0L L3 Petrol air filter
    Special Price £48.69 Regular Price £64.99
    33-3131
    K&N
  11. 2018 Ford Focus IV 1.5L L3 Petrol air filter
    Special Price £48.69 Regular Price £64.99
    33-3131
    K&N
  12. 2018 Ford Focus IV 2.0L L4 Diesel air filter
    Special Price £48.69 Regular Price £64.99
    33-3131
    K&N
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