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Replacement Filters > Replacement Air Filter

List Price: $53.96
Your Price: $41.99

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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.

[More Information on Replacement Air Filters]
  • 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®

Product Specifications

Air Filter Shape:Panel
Filter Material:Cotton Gauze
Filter Re-Oiling Amount:0.26 oz (8 ml)
Height:0.656 in (17 mm)
Length:9.375 in (238 mm)
Package Contents:1 Air Filter
Package Quantity:1
Part Number:KA-1004
Product Box Height:9.06 in (230 mm)
Product Box Length:5.56 in (141 mm)
Product Box Width:4.56 in (116 mm)
Product Style:Unique Air Filters
Weight:0.5 lb (0.23 kg)
Width:3.281 in (83 mm)

Customer Feedback

Kawasaki ZX10R

Holly Cow!!!!!!!!!!!!!!!
    I have a 2004 ZX10r that I have been riding for 2 years.  Just put 9000 miles on it and thought it would be a good idea to change air filter.  So I ordered the K & N replacement filter and started my machine.  Holly Crap this thing was fast already.  After a few minutes of rough idle I took it for a spin around the block.  I don't know why but bottom end response is so much better!!  107 mph, first gear in under 5 seconds and the sound is unbelievable.  It sounds so throaty I thought I may have installed it wrong but it was right.

Thank you so much for your hard work
John Stewart , Minden, Nevada
Although this filter was not the one K&N recommended, it is the one that fits my Kawasaki Ninja 2004 perfectly. I've never had a problem with a K&N filter. You guys rock!
Fred, Dayton, Ohio
RC-2340 Works on Kawasaki Vulcan VN750 87-06 Ear shave MOD
Mike, Arizona