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This product is legal in California only for racing vehicles which may never be used, registered or licensed for use upon a highway.

K&N Air Filter Power Lid HA-4099-T

The K&N PowerLid eliminates restrictive ATV intake airboxes and snorkels by replacing the stock air box cover with a high flow filter lid. Air can flow directly through the top of the airbox. The PowerLid works in conjunction with the existing airbox filter element (sold separately) to provide excellent filtration with less restriction. The combination increases airflow for more horsepower. 

All K&N PowerLids come with a K&N PreCharger filter wrap for the lid for added filtration. On certain models, a carburetor jet kit is included. The PowerLid snaps in place with no modification necessary.


  • High flow, filtered airbox lid
  • Adds airflow and power while providing excellent filtration
  • Washable, reusable K&N filter element
  • Works in conjunction with original airbox filter (sold separately) 
  • Includes PreCharger filter wrap and carburetor jets (where applicable)
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This product is vehicle specific. Click here to select your vehicle to ensure fitment.

This Product Fits:

Sportrax 400 TRX400EX 1999-2008
Sportrax 400 TRX400X 2012, 2013, 2014

This item is also available for 19 other models:

Arctic Cat
ATV 400 DVX 2004-2008
Sportrax 450 TRX450R 2004-2005
KFX400 2003-2006
LT-Z400 QuadSport 2003-2013
Banshee 350 2000-2006
Banshee 350 LE 2004
Banshee 350 SE 2005-2006
Banshee 350 SP 2006
Raptor 660R 2001-2005
Raptor 660R LE 2002-2004
Raptor 660R SE 2005
YFZ450 2004-2013
YFZ450 LE 2004
YFZ450R 2009-2013
YFZ450R SE 2009-2013
YFZ450 SE 2005-2008
YFZ450X 2008-2011
YFZ450X Bill Balance Edition 2010
YFZ450X SE 2011
Product Style Item # Store SKU Manufacturer Product # Availability
Product Style K&N Air Filter Power Lid HA-4099-T Item # 10103065 Store SKU Manufacturer Product # HA-4099-T Availability Only 1 Left: Ships in 2-4 business days
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