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USD 74.99
Part #: AA851-385

AirAid 851-385 Synthaflow Direct-Fit Replacement Filter

2008-2021 Ford F-Series (See Applications)
Part #: AA851-385
Ships from manufacturer (Usually in 1-3 Days)

An Email Will Be Sent With Expected Shipping Date After Purchase

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Get more power and mileage out of your ford truck with the AirAid 851-385 Synthaflow Direct-Fit Replacement Filter. This dry media filter can be cleaned and reused and offers better flow and filtration over your stock paper filter. 

  • Easy Installation
  • Oil Free Filter Media
  • Washable And Reusable
  • Better Filtration & Better Flow
2009-2021 Ford F-150 Gas
2018-2021 Ford F-150 3.0L Powerstroke
2008-2015 Ford F-450/F-550 Super Duty 6.8L Gas
2008-2016 Ford F-250/F-350 Super Duty 6.2L/6.8L Gas

Vehicle Applications

2018 Ford 3.0L Powerstroke
2019 Ford 3.0L Powerstroke
2020 Ford 3.0L Powerstroke
2021 Ford 6.7L Powerstroke
2008 Ford Gas
2009 Ford Gas
2010 Ford Gas
2011 Ford Gas
2012 Ford Gas
2013 Ford Gas
2014 Ford Gas
2015 Ford Gas
2016 Ford Gas
2017 Ford Gas
2018 Ford Gas
2019 Ford Gas
2020 Ford Gas
2021 Ford Gas


  • MFG. Number 851-385
  • Manufacturer Name Airaid Intake Systems
  • Shipping Weight 1.52 lb.
  • Shipping Length 15.5 in.
  • Shipping Width 2.8 in.
  • Shipping Height 11.2 in.
  • Fuel Type Diesel / Gas
  • UPC 642046074951
  • Warranty Yes
  • Warranty Info Limited Lifetime
  • Prop 65 WARNING: Cancer & Reproductive Harm -


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