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 virtually every vehicle 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

Part KN33-2401 Product Specifications
Product Style: Unique Air Filters
Filter Material: Cotton Gauze
Flanges: None
Height: 1 in (25 mm)
Filter Re-Oiling Amount: 0.88 oz (26 ml)
Outside Length: 8.5 in (216 mm)
Outside Width: 7.813 in (198 mm)

Filter Cross Reference
Ford 8S4Z9601A
Ford FA1890
Purolator A35775

2011 FORD FOCUS 2.0L L4 F/I - US
2010 FORD FOCUS 2.0L L4 F/I - US
2009 FORD FOCUS 2.0L L4 F/I - US
2008 FORD FOCUS 2.0L L4 F/I - US, exc. PZEV

Product Reviews for KN33-2401 - K&N