• K&N RK-3910-1 Motorcycle Air Intake System for Select 1999-2012 Harley-Davidson Models
  • K&N RK-3910-1 Motorcycle Air Intake System for Select 1999-2012 Harley-Davidson Models
  • K&N RK-3910-1 Motorcycle Air Intake System for Select 1999-2012 Harley-Davidson Models
  • K&N RK-3910-1 Motorcycle Air Intake System for Select 1999-2012 Harley-Davidson Models
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K&N

K&N RK-3910-1 Motorcycle Air Intake System for Select 1999-2012 Harley-Davidson Models

K&N RK-3910-1 Motorcycle Air Intake System for Select 1999-2012 Harley-Davidson Models

$ 264.99
$ 291.49 $ 264.99
Free shipping on orders over $99 (contiguous U.S.) — flat $10.99 under $99. Shipping details
✓ In Stock • Ships from manufacturer
Ships from K&N — this item ships direct from the manufacturer. It usually goes out quickly, but because it leaves their warehouse rather than ours, delivery can take a little longer than our in-stock parts.

K&N RK-3910-1 Motorcycle Air Intake System.

K&N's RK Series was developed to get more horsepower from your Twin Cam Harley-Davidson engine. Built around the legendary K&N High-Flow Air Filter, the this RK Series assembly includes an innovative powder coated billet aluminum back plate that eliminates external breathers and features a built-in, dyno-tuned velocity stack. The result is a significant airflow increase to the engine without sacrificing filtration. This RK Series assembly retains a factory appearance by utilizing the stock air cleaner cover. The RK-3910-1 comes with a larger air filter and longer spacers than the RK-3909-1.

Key Features

  • Excellent air filtration.

Fits These Vehicles

Fits 1 make, 1999-2012 — click to view all 78 models
  • Fits 2012 Harley-Davidson FLSTC Heritage Softail Classic 103 CI (2-1/4 In Tall Filter)
  • Fits 2007-2011 Harley-Davidson FLSTC Heritage Softail Classic 96 CI (2-1/4 In Tall Filter)
  • Fits 2000-2006 Harley-Davidson FLSTC Heritage Softail Classic 88 CI (2-1/4 In Tall Filter)
  • Fits 2012 Harley-Davidson FLSTF Fat Boy 103 CI (2-1/4 In Tall Filter)
  • Fits 2007-2011 Harley-Davidson FLSTF Fat Boy 96 CI (2-1/4 In Tall Filter)
  • Fits 2000-2006 Harley-Davidson FLSTF Fat Boy 88 CI (2-1/4 In Tall Filter)
  • Fits 2012 Harley-Davidson FLSTFB Softail Fat Boy Lo 103 CI (2-1/4 In Tall Filter)
  • Fits 2010-2011 Harley-Davidson FLSTFB Softail Fat Boy Lo 96 CI (2-1/4 In Tall Filter)
  • Fits 2012 Harley-Davidson FLSTN Softail Deluxe 103 CI (2-1/4 In Tall Filter)
  • Fits 2007-2011 Harley-Davidson FLSTN Softail Deluxe 96 CI (2-1/4 In Tall Filter)
  • Fits 2005-2006 Harley-Davidson FLSTN Softail Deluxe 88 CI (2-1/4 In Tall Filter)
  • Fits 2008-2011 Harley-Davidson FXCWC Rocker C 96 CI (2-1/4 In Tall Filter)
  • Fits 2007-2010 Harley-Davidson FXSTB Night Train 96 CI (2-1/4 In Tall Filter)
  • Fits 2000-2006 Harley-Davidson FXSTB Night Train 88 CI (2-1/4 In Tall Filter)
  • Fits 2007-2010 Harley-Davidson FXSTC Softail Custom 96 CI (2-1/4 In Tall Filter)
  • Fits 2008-2009 Harley-Davidson FXCW Rocker 96 CI (2-1/4 In Tall Filter)
  • Fits 2007-2009 Harley-Davidson FXST Softail Standard 96 CI (2-1/4 In Tall Filter)
  • Fits 2000-2006 Harley-Davidson FXST Softail Standard 88 CI (2-1/4 In Tall Filter)
  • Fits 2007 Harley-Davidson FLHR Road King 96 CI (2-1/4 In Tall Filter)
  • Fits 1999-2006 Harley-Davidson FLHR Road King 88 CI (2-1/4 In Tall Filter)
  • Fits 2007 Harley-Davidson FLHRC Road King Classic 96 CI (2-1/4 In Tall Filter)
  • Fits 2007 Harley-Davidson FLHRS Road King Custom 96 CI (2-1/4 In Tall Filter)
  • Fits 2004-2006 Harley-Davidson FLHRS Road King Custom 88 CI (2-1/4 In Tall Filter)
  • Fits 2007 Harley-Davidson FLHT Electra Glide Standard 96 CI (2-1/4 In Tall Filter)
  • Fits 1999-2006 Harley-Davidson FLHT Electra Glide Standard 88 CI (2-1/4 In Tall Filter)
  • Fits 2007 Harley-Davidson FLHTC Electra Glide Classic 96 CI (2-1/4 In Tall Filter)
  • Fits 1999-2005 Harley-Davidson FLHTC Electra Glide Classic 88 CI (2-1/4 In Tall Filter)
  • Fits 2007 Harley-Davidson FLHTCU Ultra Classic Electra Glide 96 CI (2-1/4 In Tall Filter)
  • Fits 2007 Harley-Davidson FLHX Street Glide 96 CI (2-1/4 In Tall Filter)
  • Fits 2006 Harley-Davidson FLHX Street Glide 88 CI (2-1/4 In Tall Filter)
  • Fits 2007 Harley-Davidson FLSTSC Softail Springer Classic 96 CI (2-1/4 In Tall Filter)
  • Fits 2005-2006 Harley-Davidson FLSTSC Softail Springer Classic 88 CI (2-1/4 In Tall Filter)
  • Fits 2007 Harley-Davidson FLTR Road Glide 96 CI (2-1/4 In Tall Filter)
  • Fits 1999-2002 Harley-Davidson FLTR Road Glide 88 CI (2-1/4 In Tall Filter)
  • Fits 2007 Harley-Davidson FXD Dyna Super Glide 96 CI (2-1/4 In Tall Filter)
  • Fits 1999-2006 Harley-Davidson FXD Dyna Super Glide 88 CI (2-1/4 In Tall Filter)
  • Fits 2007 Harley-Davidson FXDB Street Bob 96 CI (2-1/4 In Tall Filter)
  • Fits 2007 Harley-Davidson FXDC Super Glide Custom 96 CI (2-1/4 In Tall Filter)
  • Fits 2007 Harley-Davidson FXDL Dyna Low Rider 96 CI (2-1/4 In Tall Filter)
  • Fits 1999-2005 Harley-Davidson FXDL Dyna Low Rider 88 CI (2-1/4 In Tall Filter)
  • Fits 2007 Harley-Davidson FXDWG Dyna Wide Glide 96 CI (2-1/4 In Tall Filter)
  • Fits 1999-2006 Harley-Davidson FXDWG Dyna Wide Glide 88 CI (2-1/4 In Tall Filter)
  • Fits 2007 Harley-Davidson FXSTD Softail Deuce 96 CI (2-1/4 In Tall Filter)
  • Fits 2000-2006 Harley-Davidson FXSTD Softail Deuce 88 CI (2-1/4 In Tall Filter)
  • Fits 2002-2006 Harley-Davidson FLHRCI Road King Classic F/I 88 CI (2-1/4 In Tall Filter)
  • Fits 2003-2006 Harley-Davidson FLHRI Road King F/I 88 CI (2-1/4 In Tall Filter)
  • Fits 2004-2006 Harley-Davidson FLHRSI Road King Custom F/I 88 CI (2-1/4 In Tall Filter)
  • Fits 2002-2006 Harley-Davidson FLHTCI Electra Glide Classic F/I 88 CI (2-1/4 In Tall Filter)
  • Fits 2002-2006 Harley-Davidson FLHTCUI Electra Glide Ultra Classic F/I 88 CI (2-1/4 In Tall Filter)
  • Fits 2003-2006 Harley-Davidson FLHTI Electra Glide Standard F/I 88 CI (2-1/4 In Tall Filter)
  • Fits 2006 Harley-Davidson FLHXI Street Glide F/I 88 CI (2-1/4 In Tall Filter)
  • Fits 2006 Harley-Davidson FLST Heritage Softail 88 CI (2-1/4 In Tall Filter)
  • Fits 2002-2006 Harley-Davidson FLSTCI Heritage Softail Classic F/I 88 CI (2-1/4 In Tall Filter)
  • Fits 2001-2006 Harley-Davidson FLSTFI Fat Boy F/I 88 CI (2-1/4 In Tall Filter)
  • Fits 2006 Harley-Davidson FLSTI Heritage Softail F/I 88 CI (2-1/4 In Tall Filter)
  • Fits 2005-2006 Harley-Davidson FLSTNI Softail Deluxe F/I 88 CI (2-1/4 In Tall Filter)
  • Fits 2005-2006 Harley-Davidson FLSTSCI Softail Springer Classic F/I 88 CI (2-1/4 In Tall Filter)
  • Fits 2002-2006 Harley-Davidson FLTRI Road Glide F/I 88 CI (2-1/4 In Tall Filter)
  • Fits 2006 Harley-Davidson FXDBI Street Bob F/I 88 CI (2-1/4 In Tall Filter)
  • Fits 2005-2006 Harley-Davidson FXDC Dyna Super Glide Custom 88 CI (2-1/4 In Tall Filter)
  • Fits 2005-2006 Harley-Davidson FXDCI Dyna Super Glide Custom F/I 88 CI (2-1/4 In Tall Filter)
  • Fits 2004-2006 Harley-Davidson FXDI Dyna Super Glide F/I 88 CI (2-1/4 In Tall Filter)
  • Fits 2006 Harley-Davidson FXDI35 35th Anniv. Super Glide F/I 88 CI (2-1/4 In Tall Filter)
  • Fits 2004-2006 Harley-Davidson FXDLI Dyna Low Rider F/I 88 CI (2-1/4 In Tall Filter)
  • Fits 2004-2006 Harley-Davidson FXDWGI Dyna Wide Glide F/I 88 CI (2-1/4 In Tall Filter)
  • Fits 2001-2006 Harley-Davidson FXSTBI Night Train F/I 88 CI (2-1/4 In Tall Filter)
  • Fits 2001-2006 Harley-Davidson FXSTDI Softail Deuce F/I 88 CI (2-1/4 In Tall Filter)
  • Fits 2001-2006 Harley-Davidson FXSTI Softail Standard F/I 88 CI (2-1/4 In Tall Filter)
  • Fits 2000-2006 Harley-Davidson FXSTS Springer Softail 88 CI (2-1/4 In Tall Filter)
  • Fits 2001-2006 Harley-Davidson FXSTSI Springer Softail F/I 88 CI (2-1/4 In Tall Filter)
  • Fits 2004-2005 Harley-Davidson FXDXI Dyna Super Glide Sport F/I 88 CI (2-1/4 In Tall Filter)
  • Fits 1999-2004 Harley-Davidson FXDX Dyna Super Glide Sport 88 CI (2-1/4 In Tall Filter)
  • Fits 2000-2003 Harley-Davidson FLSTS Heritage Springer 88 CI (2-1/4 In Tall Filter)
  • Fits 2001-2003 Harley-Davidson FLSTSI Heritage Springer F/I 88 CI (2-1/4 In Tall Filter)
  • Fits 2001-2003 Harley-Davidson FXDXT Dyna Super Glide T-Sport 88 CI (2-1/4 In Tall Filter)
  • Fits 2001 Harley-Davidson FXDWG3 88 CI (2-1/4 In Tall Filter)
  • Fits 1999-2000 Harley-Davidson FXDS Dyna Convertible 88 CI (2-1/4 In Tall Filter)
  • Fits 2000 Harley-Davidson FXDWG2 88 CI (2-1/4 In Tall Filter)

Confirm the model year, engine and the part number against your vehicle before ordering.

K&N warrants this product to be free from defects in materials and workmanship for the lifetime of the product. Coverage applies only to the original purchaser and is non-transferable. Coverage excludes damage from transportation, storage, improper use, failure to follow the product instructions or perform preventive maintenance, modifications, unauthorized repair, normal wear and tear, racing, competition or off-road use. Claims are handled directly by K&N customer service.

Specifications

  • Brand: K&N
  • Manufacturer Part Number: RK-3910-1
  • Type: Cold Air Intake
  • CARB E.O. Number: D-269-35
  • Street Legal: Legal for use in all 50 states
  • Manufacturer Warranty: Lifetime Limited (original purchaser)
  • Condition: New

Images are for illustrative purposes. The product you receive may differ in finish or packaging from the photograph.

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Manufacturer's Warranty — K&N

K&N warrants its products against defects in materials and workmanship. Washable replacement air filters, washable cabin air filters, performance air intake systems and home HVAC filters carry a lifetime limited warranty; oil filters, disposable and universal air filters and automotive accessories are covered for one year from the date of purchase. Coverage applies to the original purchaser and excludes damage from improper use, failure to perform maintenance, modification, normal wear, racing, competition or off-road use. Claims are handled directly by K&N customer service.

Warranty terms are set by the manufacturer and may change. Full details and claims are handled directly by K&N. Contact us if you need help with a warranty claim.

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