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K&N E-9289 5.0 out of 5 stars 1 Customer Review
Universal Air Filters > Replacement Air Filter

 List Price: $106.92
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The K&N E-9289 Air Filter is designed to increase horsepower and protect your engine by reducing restriction and providing excellent filtration. The E-9289 custom air filter is manufactured to replace the air filter in the 57S-4000 performance air box and it comes with a K&N embossed lid cap. The filter media can be washed and reused repeatedly.

[More Information on Universal Air Filters with Custom Caps]
  • Replacement air filter for 57S-4000
  • Designed to boost horsepower and rate of acceleration
  • Can be cleaned and used over and over again
  • Comes with a K&N embossed lid cap
Available Information
Air Filter Test Data

Product Specifications 
Air Filter Large End Diameter:5.719 in (145 mm)
Air Filter Shape:Round Reverse Tapered
Base Outside Diameter:5.75 in (146 mm)
Filter Material:Cotton Gauze
Filter Re-Oiling Amount:1.05 oz (31 ml)
Flange Inside Diameter:2.75 in (70 mm)
Flange Length:0.438 in (11 mm)
Flange Type:Centered
Height:7.688 in (195 mm)
Package Contents:1 Air Filter
Package Quantity:1
Part Number:E-9289
Product Box Height:9 in (229 mm)
Product Box Length:7.25 in (184 mm)
Product Box Width:7.25 in (184 mm)
Product Style:Round Tapered Universal Air Filter
Top Material/Finish:None
Top Outside Diameter:5.938 in (151 mm)
Top Style:Plastic
Weight:1.2 lb (0.5 kg)

Product Reviews      Review part E-9289

 Excellent service from K&N and excellent fit in my 2014 Ford 2.0L Escape. I run without the cap and have seen a consistent 0.5 MPG improvement along with better throttle response.
Don Perretti, San Diego, California