Screamin' Eagle High-Flo K&N Replacement Air Filter Element

Part Number 29400021




K&N replacement air filters are engineered to improve airflow for increased horsepower and quicker acceleration. K&N filters provide excellent filtration, and because they are washable and reusable, you can clean the filter whenever conditions demand.


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  • These Screamin' Eagle® products are 50-State U.S. EPA compliant for sale and use on all applicable vehicles, including those that are pollution controlled. See Genuine Motor Parts and Accessories or Screamin' Eagle Accessories catalog for fitment information. Screamin' Eagle Performance products are intended for the experienced rider only.


These washable and rechargeable filters use a special coating to help filter fine particles from the incoming air. With time, the oil in the filter will dissipate and the element will begin to turn gray. Clean the surface and renew the original red color with an application of K&N Air Filter Care products.

  • Warranty

    1 year limited warranty – Go to for full details
  • Requires ECM Calibration

  • Sold in Unit

  • In The Box

    Air filter only
High-Flo K&N Air Filter Element is rated 5.0 out of 5 by 3.
Rated 5 out of 5 by from Up and riding again I live on a dirt road and started having problems missing out and back firing. pulled my air cleaner off found my idle air control valve clogged with dirt cleaned it and the throttle body and replaced it with a K&N filter best thing I could have done. haven't had a problem since.
Date published: 2017-09-08
Rated 5 out of 5 by from High-Flo K&N Air Filter I am a big fan of K&N filters. I have them on both Harley's, my Corvette and I have a K&N cold air intake system installed om my 2015 Hemi Ram P/U truck..
Date published: 2017-07-28
Rated 5 out of 5 by from K&N Quality Typical quality, K&N filters are usually my first upgrade on all my toys, it was actually cheaper to purchase from the HD online store, I don't know about increased torque and horsepower, but it's worth it just for the ease of maintenance.
Date published: 2016-06-13
  • y_2018, m_2, d_26, h_20
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.7
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_3
  • loc_en_US, sid_PA-18-29400021, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_harleydavidson

Stock football

Will this fit the factory football/housing?
Asked by: Frank671
Hey Frank671! Unfortunately this will not work as a factory replacement. You have to have the stage 1 SE Air Cleaner Kit installed. Part number: 29406-08.
Answered by: PeteHD
Date published: 2014-08-04

will this fit in stock houseing

Asked by: frank619
  • y_2018, m_2, d_26, h_20CST
  • bvseo_bulk, prod_bvqa, vn_bulk_2.0.7
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_2
  • loc_en_US, sid_PA-18-29400021, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_harleydavidson

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    Prices listed are generally the Manufacturer's Suggested Retail Price (MSRP), excluding taxes and shipping. Prices at local dealerships may vary. All online orders will be fulfilled and shipped by
    Harley-Davidson Motor Company as the agent for the Selling Dealer.