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K&N Air Filter DU-9001
  • K&N Air Filter DU-9001
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Video Review

K&N Air Filter DU-9001 Videos

K&N Air Filter DU-9001

K&N Air Filters are designed to achieve a virtually unrestricted air flow while maintaining filtration levels critical to engine life. The secret to their success lies in the unique characteristics of the filter medium which was originally developed by K&N all those years ago in the dust, sweat and tears of desert motocross racing.

The high flow cotton gauze air filter is washable, reusable and built to last for the life of a motorcycle engine. K&N air filters consist of four to six sheets of cotton gauze layered between two sheets of aluminum wire mesh. This media is then pleated and oiled to enhance its filtering capabilities and overall performance. K&N Air Filters were created for an environment requiring maximum horsepower and enhanced acceleration in addition to protection from the dirt and dust. The result is an air filter that allows dramatically more air into an engine, is washable and reusable, and will protect your engine for the life of your ride.

This Product Fits:
Monster 1000 2003, 2004, 2005
Monster 1000S 2004, 2005
Monster 400 Dark 2005
Monster 620 2002, 2003, 2004, 2005, 2006
Monster 620 Dark 2003, 2004, 2005, 2006
Monster 695 2007, 2008
Monster 750 2002
Monster 750 Dark 2002
Monster 800 2004
Monster 800S 2003
Monster S2R 2005, 2006, 2007
Monster S2R 1000 2006, 2007, 2008
Monster S2R Dark 2005, 2006
Monster S4 2001, 2002, 2003
Monster S4R 2005, 2006
Monster S4RS Testastretta 2007
Monster S4RS Tricolore 2008
Monster S4R Testastretta 2007
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K&N Air Filter DU-9001
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Product Style RevZilla Item # Manufacturer Product # Availability
K&N Air Filter DU-9001 857840 DU-9001 In Stock: Ships within 24 hours