$53.99 USD
MSRP $84.14 35.8% Off
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K&N E-9091 Air Filter

Replacement Filters > Replacement Air Filter
  • Designed to boost horsepower and rate of acceleration
  • Can be cleaned and used again
  • High air flow with exceptional filtration
  • Lasts up to 50,000 miles before cleaning is required depending on driving conditions
  • Works with original equipment manufacturer vehicle electronics
  • Emissions legal in all 50 US states
  • Will NOT void vehicle warranty
  • Million Mile Limited Warranty®
The K&N E-9091 Air Filter fits some Ford Escort Express, Ford Escort IV, Ford Escort V, Ford Escort VI, Ford Escort VII, Ford Fiesta, Ford Fiesta III, Ford Orion II, and Ford Orion III models. See vehicle applications link for details.
K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority of vehicles on the road. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop-in design means adding performance is simple. With most vehicles you simply remove the disposable air filter and replace it with a K&N. See applicable instruction sheet for details. Our stock replacement air filters for street vehicles are covered by our famous K&N Million-Mile Limited Warranty and will be the last air filter your vehicle will ever need.

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Product Specifications

Air Filter ShapeOval
Base Outside Length13.875 in (352 mm)
Base Outside Width9.5 in (241 mm)
Filter MaterialCotton Gauze
Filter Re-Oiling Amount0.82 oz (24 ml)
Height1.875 in (48 mm)
Inner WireNo
Inside Length12 in (305 mm)
Inside Width7.625 in (194 mm)
Outside Length13.875 in (352 mm)
Outside Width9.5 in (241 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height3.63 in (92 mm)
Product Box Length12.25 in (311 mm)
Product Box Width12.25 in (311 mm)
Product StyleOval Air Filter
Top MaterialNone
Top Outside Length13.875 in (352 mm)
Top Outside Width9.5 in (241 mm)
Top StyleOpen
Weight1.5 lb (0.7 kg)

K&N E-9091 Air Filter Product Reviews