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K&N Engineering, Inc. Manufacturer of the World's Best Filters

K&N Performance Intakes for  Harley Davidson®
Touring, Softail and Sportster Model Motorcycles
AirCharger Performance Air Intake Kits - K&N's Aircharger Performance Intake Kit will get more horsepower from your Harley-Davidson® motorcycle. K&N's air intake for Touring Models gained an amazing 12.92 HP at the rear wheel and K&N's air intake for Softail Models gained 10.21 HP. This High-Flow Intake System increases power by eliminating the restrictive stock OE air cleaner and replacing it with a K&N High-Flow Air Filter and mandril bent aluminum intake tube. This complete intake system will help relieve the labored feeling associated with two-up riding or loaded touring. K&N's High-Flow Intake System gives your Harley® an aggressive appearance while providing a significant increase in airflow resulting in more power.
  • K&N High-Flow Air Filter significantly increases performance
  • Billet aluminum throttle-body mounting plate
  • Includes complete breather assembly and mounting hardware
  • Aluminum Intake Tube available in two finishes; Bright Mirror or Textured Black
 K&N AirCharger Performance Intakes for Harley Davidson® Touring Model Motorcycles

Check out K&N's Custom Air Cleaners and Assemblies for Harley Davidson® Motorcycles!

Find Latest List of K&N Air Intakes by Harley Davidson® Motorcycle Here!

Harley Davidson® Touring Models
Model   Year   CC   Textured Black   Bright Mirror   DryCharger
FLHR Road King   08-10   1584   63-1122*   63-1122P*   RC-3680DK
FLHRC Road King Classic   08-10   1584   63-1122*   63-1122P*   RC-3680DK
FLHT Electra Glide Standard   08-10   1584   63-1122*   63-1122P*   RC-3680DK
FLHTC Electra Glide Classic   08-10   1584   63-1122*   63-1122P*   RC-3680DK
FLHTCU Ultra Classic Electra Glide   08-10   1584   63-1122*   63-1122P*   RC-3680DK
FLHX Street Glide   08-10   1584   63-1122*   63-1122P*   RC-3680DK
FLTR Road Glide   08-10   1584   63-1122*   63-1122P*   RC-3680DK


Harley Davidson® Softail & Twin-Cam Models
Model   Year   CC   Textured Black   Bright Mirror   DryCharger
FXSTC Softail Custom 07-10 1584, 1586   63-1125*   63-1125P*   RC-3680DK
FXDWG Dyna Wide Glide   07-10   1586   63-1125*   63-1125P*   RC-3680DK
FXDWGI Dyna Wide Glide F/I   04-06   1432   63-1125*   63-1125P*   RC-3680DK
FXDF Fat Bob   08-10   1586   63-1125*   63-1125P*   RC-3680DK
FXDC Dyna Super Glide Custom   07-10   1586   63-1125*   63-1125P*   RC-3680DK
FXDCI Dyna Super Glide Custom F/I   05-06   1432   63-1125*   63-1125P*   RC-3680DK
FXDB Dyna Street Bob   07-10   1586   63-1125*   63-1125P*   RC-3680DK
FXDBI Dyna Street Bob F/I   2006   1432   63-1125*   63-1125P*   RC-3680DK
FXD Dyna Super Glide   07-10   1586   63-1125*   63-1125P*   RC-3680DK
FXDI Dyna Super Glide F/I   04-06   1432   63-1125*   63-1125P*   RC-3680DK
FXCWC Rocker C   08-10   1584   63-1125*   63-1125P*   RC-3680DK
FLSTSB Softail Cross Bones   08-10   1586   63-1125*   63-1125P*   RC-3680DK
FLSTN Softail Deluxe   07-10   1586   63-1125*   63-1125P*   RC-3680DK
FLSTNI Softail Deluxe F/I   05-06   1432   63-1125*   63-1125P*   RC-3680DK
FLSTFB Softail Fat Boy Lo   2010   1584   63-1125*   63-1125P*   RC-3680DK
FLSTF Fat Boy   07-10   1586   63-1125*   63-1125P*   RC-3680DK
FLSTFI Fat Boy F/I   01-06   1432   63-1125*   63-1125P*   RC-3680DK
FLSTC Heritage Softail Classic   07-10   1586   63-1125*   63-1125P*   RC-3680DK
FLSTCI Heritage Softail Classic F/I   02-06   1432, 1450   63-1125*   63-1125P*   RC-3680DK
FXSTB Night Train   07-09   1586   63-1125*   63-1125P*   RC-3680DK
FXSTBI Night Train F/I   01-06   1450   63-1125*   63-1125P*   RC-3680DK
FXDL Dyna Low Rider   06-09   1586   63-1125*   63-1125P*   RC-3680DK
FXDLI Dyna Low Rider F/I   04-06   1432   63-1125*   63-1125P*   RC-3680DK
FXCW Rocker   08-09   1584   63-1125*   63-1125P*   RC-3680DK
FXDC Dyna Super Glide Custom   2008   1586   63-1125*   63-1125P*   RC-3680DK
FXSTD Softail Deuce   2007   1586   63-1125*   63-1125P*   RC-3680DK
FXSTDI Softail Deuce F/I   01-06   1432   63-1125*   63-1125P*   RC-3680DK
FXST Softail Standard   2007   1586   63-1125*   63-1125P*   RC-3680DK
FXSTI Softail Standard F/I   01-06   1432   63-1125*   63-1125P*   RC-3680DK
FLTR Road Glide   2007   1586   63-1125*   63-1125P*   RC-3680DK
FLTRI Road Glide F/I   02-06   1450   63-1125*   63-1125P*   RC-3680DK
FLHXI Street Glide   2007   1586   63-1125*   63-1125P*   RC-3680DK
FLHXI Street Glide F/I   2006   1432   63-1125*   63-1125P*   RC-3680DK
FLSTSC Softail Springer   2007   1584   63-1125*   63-1125P*   RC-3680DK
FLSTSCI Softail Springer F/I   01-06   1450   63-1125*   63-1125P*   RC-3680DK
FLHTCU Ultra Classic Electra Glide   2007   1586   63-1125*   63-1125P*   RC-3680DK
FLHTCUI Ultra Classic Electra Glide F/I   02-06   1432   63-1125*   63-1125P*   RC-3680DK
FLHTC Electra Glide Classic   2007   1586   63-1125*   63-1125P*   RC-3680DK
FLHTCI Electra Glide Classic F/I   02-06   1432   63-1125*   63-1125P*   RC-3680DK
FLHT Electra Glide Standard   2007   1586   63-1125*   63-1125P*   RC-3680DK
FLHTI Electra Glide Standard F/I   03-06   1432   63-1125*   63-1125P*   RC-3680DK
FLHRS Road King Custom   2007   1586   63-1125*   63-1125P*   RC-3680DK
FLHRSI Road King Custom F/I   04-06   1432   63-1125*   63-1125P*   RC-3680DK
FLHRC Road King Classic   2007   1586   63-1125*   63-1125P*   RC-3680DK
FLHRCI Road King Classic F/I   02-06   1432   63-1125*   63-1125P*   RC-3680DK
FLHR Road King Classic   2007   1586   63-1125*   63-1125P*   RC-3680DK
FLHRI Road King F/I   03-06   1432   63-1125*   63-1125P*   RC-3680DK
FXDI35 35th Aniv. Super Glide F/I   2006   1432   63-1125*   63-1125P*   RC-3680DK
FLSTI Heritage Softail F/I   2006   1432   63-1125*   63-1125P*   RC-3680DK
FXDXI Dyna Super Glide Sport F/I   04-05   1432, 1450   63-1125*   63-1125P*   RC-3680DK
FLSTSCI Softail Springer Classic F/I   2005   1432   63-1125*   63-1125P*   RC-3680DK
FLSTSI Heritage Springer F/I   01-03   1432   63-1125*   63-1125P*   RC-3680DK


Harley Davidson® Sportster Models
Model   Year   CC   Textured Black   DryCharger
XL883L Sportster Low   08-10   883   63-1126*   RC-3680DK
XL883C Sportster Custom   08-10   883   63-1126*   RC-3680DK
XL1200X Forty-Eight   2010   1200   63-1126*   RC-3680DK
XL1200N Sportster Nightster   07-10   1200   63-1126*   RC-3680DK
XL1200L Sportster Low   07-10   1200   63-1126*   RC-3680DK
XL1200C Sportster Custom   07-10   1200   63-1126*   RC-3680DK
XL883N Iron 883   2009   883   63-1126*   RC-3680DK
XL883 Sportster   07-08   883   63-1126*   RC-3680DK
XL1200R Sportster Roadster   07-08   1200   63-1126*   RC-3680DK
XL883R Sportster   2007   883   63-1126*   RC-3680DK
XL50 50th Anniversary Sportster   2007   1200   63-1126*   RC-3680DK

*These air intakes are street legal in most states. Some of these parts are not legal for use on certain vehicles in California, or other states adopting California emission standards. Use our online search by part for CARB status of the part on specific vehicles.

Street Metal ® Series High-Flow Air Intake Systems - K&N's Street Metal® Series High-Flow Air Intake Systems offer increased airflow and deliver more horsepower & torque to your Harley-Davidson® motorcycle. These intake systems increase power by eliminating the stock OE air cleaner and replacing it with a complete High-Flow Air Intake System. The sturdy, custom aluminum backing plate mounts directly to the throttle body via an aluminum integrated, internal-run breather system. An original K&N High-Flow Air Filter is used, providing low restriction and long service intervals. A durable mounting gasket is used to help absorb vibration. The K&N High-Flow Air Filter is washable, reusable, pre-oiled and ready for installation. K&N Street Metal® Series High-Flow Air Intake System are equipped with custom designed aluminum covers to make sure your Air Cleaner looks good while powering down the highway or at your local show.
  • Delivers more horsepower & torque
  • Aluminum backing plate
  • Integrated velocity stack
  • Washable, reusable K&N high-flow air filter
  • Built-in breathers
  • Custom aluminum cover
 K&N's Street Metal Series High-Flow Air Intake Systems for Harley Davidson® Motorcycles


Harley Davidson® Motorcycles
K&N Street Metal® Series High-Flow Air Intake Systems
Model   Year   Part#
Harley Davidson FLD Dyna Switchback 103 CI  2012 RK-3935*
Harley Davidson FLS Softail Slim 103 CI  2012 RK-3935*
Harley Davidson FLSTF Fat Boy 103 CI  2012 RK-3935*
Harley Davidson FLSTFB Softail Fat Boy Lo 103 CI  2012 RK-3935*
Harley Davidson FLSTN Softail Deluxe 103 CI  2012 RK-3935*
Harley Davidson FXDF Fat Bob 96 CI 2008 - 2012 RK-3935*
Harley Davidson FXDB Dyna Street Bob 96 CI 2007 - 2012 RK-3935*
Harley Davidson FXDC Dyna Super Glide Custom 96 CI 2007 - 2012 RK-3935*
Harley Davidson FXDWG Dyna Wide Glide 96 CI 2007 - 2012 RK-3935*
Harley Davidson FLSTFB Softail Fat Boy Lo 96 CI 2010 - 2011 RK-3935*
Harley Davidson FLSTFB Softail Fat Boy Lo 96 Ci 2010 - 2011 RK-3932*
Harley Davidson FLSTSB Softail Cross Bones 96 CI 2008 - 2011 RK-3935*
Harley Davidson FXCWC Rocker C 96 CI 2008 - 2011 RK-3935*
Harley Davidson FXCWC Rocker C 96 Ci 2008 - 2011 RK-3932*
Harley Davidson FXDF Fat Bob 96 Ci 2008 - 2011 RK-3932*
Harley Davidson FXDWG Dyna Wide Glide 1584 2008 - 2011 RK-3932*
Harley Davidson FLSTF Fat Boy 96 CI 2007 - 2011 RK-3935*
Harley Davidson FLSTN Softail Deluxe 96 CI 2007 - 2011 RK-3935*
Harley Davidson FLSTC Heritage Softail Classic 96 Ci 2007 - 2011 RK-3932*
Harley Davidson FLSTF Fat Boy 96 Ci 2007 - 2011 RK-3932*
Harley Davidson FLSTN Softail Deluxe 96 Ci 2007 - 2011 RK-3932*
Harley Davidson FXDB Dyna Street Bob 96 Ci 2007 - 2011 RK-3932*
Harley Davidson FXDC Dyna Super Glide Custom 96 Ci 2007 - 2011 RK-3932*
Harley Davidson FLSTC Heritage Softail Classic 96 CI 2005 - 2011 RK-3935*
Harley Davidson FXDI Dyna Super Glide F/I 96 CI  2010 RK-3935*
Harley Davidson FXDI Dyna Super Glide F/i 1584  2010 RK-3932*
Harley Davidson FXCW Rocker 96 CI 2008 - 2010 RK-3935*
Harley Davidson FLSTSB Softail Cross Bones 96 Ci 2008 - 2010 RK-3932*
Harley Davidson FXCW Rocker 96 Ci 2008 - 2010 RK-3932*
Harley Davidson FXDL Dyna Low Rider 1584 2008 - 2010 RK-3932*
Harley Davidson FXSTC Softail Custom 1586 2008 - 2010 RK-3932*
Harley Davidson FXSTC Softail Custom 96 CI 2007 - 2010 RK-3935*
Harley Davidson FXD Dyna Super Glide 96 Ci 2007 - 2010 RK-3932*
Harley Davidson FXD Dyna Super Glide 96 CI 2004 - 2010 RK-3935*
Harley Davidson FXDL Dyna Low Rider 96 CI 2007 - 2009 RK-3935*
Harley Davidson FXSTB Night Train 96 CI 2007 - 2009 RK-3935*
Harley Davidson FXSTB Night Train 1586 2007 - 2009 RK-3932*
Harley Davidson FLHR Road King 96 CI  2007 RK-3935*
Harley Davidson FLHRC Road King Classic 96 CI  2007 RK-3935*
Harley Davidson FLHRS Road King Custom 96 CI  2007 RK-3935*
Harley Davidson FLHT Electra Glide Standard 96 CI  2007 RK-3935*
Harley Davidson FLHTC Electra Glide Classic 96 CI  2007 RK-3935*
Harley Davidson FLHTCU Ultra Classic Electra Glide 96 CI  2007 RK-3935*
Harley Davidson FLHX Street Glide 96 CI  2007 RK-3935*
Harley Davidson FLTR Road Glide 96 CI  2007 RK-3935*
Harley Davidson FXST Softail Standard 96 CI  2007 RK-3935*
Harley Davidson FXSTD Softail Deuce 96 CI  2007 RK-3935*
Harley Davidson FLHR Road King 96 Ci  2007 RK-3932*
Harley Davidson FLHRC Road King Classic 96 Ci  2007 RK-3932*
Harley Davidson FLHRS Road King Custom 96 Ci  2007 RK-3932*
Harley Davidson FLHT Electra Glide Standard 96 Ci  2007 RK-3932*
Harley Davidson FLHTC Electra Glide Classic 96 Ci  2007 RK-3932*
Harley Davidson FLHTCU Ultra Classic Electra Glide 96 Ci  2007 RK-3932*
Harley Davidson FLHX Street Glide 96 Ci  2007 RK-3932*
Harley Davidson FLTR Road Glide 96 Ci  2007 RK-3932*
Harley Davidson FXDL Dyna Low Rider 1586  2007 RK-3932*
Harley Davidson FXDWG Dyna Wide Glide 1586  2007 RK-3932*
Harley Davidson FXST Softail Standard 1586  2007 RK-3932*
Harley Davidson FXSTC Softail Custom 1584  2007 RK-3932*
Harley Davidson FXSTD Softail Deuce 1586  2007 RK-3932*
Harley Davidson FLSTNI Softail Deluxe F/I 88 CI 2005 - 2006 RK-3935*
Harley Davidson FXDCI Dyna Super Glide Custom F/I 88 CI 2005 - 2006 RK-3935*
Harley Davidson FLSTC Heritage Softail Classic 88 Ci 2005 - 2006 RK-3932*
Harley Davidson FLSTNI Softail Deluxe F/i 88 Ci 2005 - 2006 RK-3932*
Harley Davidson FXDC Dyna Super Glide Custom 88 Ci 2005 - 2006 RK-3932*
Harley Davidson FXDCI Dyna Super Glide Custom F/i 88 Ci 2005 - 2006 RK-3932*
Harley Davidson FLHRSI Road King Custom F/I 88 CI 2004 - 2006 RK-3935*
Harley Davidson FXDI Dyna Super Glide F/I 88 CI 2004 - 2006 RK-3935*
Harley Davidson FXDLI Dyna Low Rider F/I 88 CI 2004 - 2006 RK-3935*
Harley Davidson FXDWGI Dyna Wide Glide F/I 88 CI 2004 - 2006 RK-3935*
Harley Davidson FLHRSI Road King Custom F/i 88 Ci 2004 - 2006 RK-3932*
Harley Davidson FXD Dyna Super Glide 88 Ci 2004 - 2006 RK-3932*
Harley Davidson FXDI Dyna Super Glide F/i 1432 2004 - 2006 RK-3932*
Harley Davidson FXDLI Dyna Low Rider F/i 1432 2004 - 2006 RK-3932*
Harley Davidson FXDWGI Dyna Wide Glide F/i 1432 2004 - 2006 RK-3932*
Harley Davidson FLHTI Electra Glide Standard F/I 88 CI 2003 - 2006 RK-3935*
Harley Davidson FLHTI Electra Glide Standard F/i 88 Ci 2003 - 2006 RK-3932*
Harley Davidson FLSTCI Heritage Softail Classic F/I 88 CI 2001 - 2006 RK-3935*
Harley Davidson FLSTFI Fat Boy F/I 88 CI 2001 - 2006 RK-3935*
Harley Davidson FXSTBI Night Train F/I 88 CI 2001 - 2006 RK-3935*
Harley Davidson FXSTDI Softail Deuce F/I 88 CI 2001 - 2006 RK-3935*
Harley Davidson FXSTI Softail Standard F/I 88 CI 2001 - 2006 RK-3935*
Harley Davidson FXSTSI Springer Softail F/I 88 CI 2001 - 2006 RK-3935*
Harley Davidson FLSTCI Heritage Softail Classic F/i 88 Ci 2001 - 2006 RK-3932*
Harley Davidson FLSTFI Fat Boy F/i 88 Ci 2001 - 2006 RK-3932*
Harley Davidson FXSTB Night Train 1432 2001 - 2006 RK-3932*
Harley Davidson FXSTBI Night Train F/i 1450 2001 - 2006 RK-3932*
Harley Davidson FXSTDI Softail Deuce F/i 1432 2001 - 2006 RK-3932*
Harley Davidson FXSTI Softail Standard F/i 1432 2001 - 2006 RK-3932*
Harley Davidson FLHRI Road King F/I 88 CI 2000 - 2006 RK-3935*
Harley Davidson FLHRCI Road King Classic F/I 88 CI 1999 - 2006 RK-3935*
Harley Davidson FLHTCI Electra Glide Classic F/I 88 CI 1999 - 2006 RK-3935*
Harley Davidson FLHTCUI Electra Glide Ultra Classic F/I 88 CI 1999 - 2006 RK-3935*
Harley Davidson FLTRI Road Glide F/I 88 CI 1999 - 2006 RK-3935*
Harley Davidson FLHRCI Road King Classic F/i 88 Ci 1999 - 2006 RK-3932*
Harley Davidson FLHTCI Electra Glide Classic F/i 88 Ci 1999 - 2006 RK-3932*
Harley Davidson FLHTCUI Electra Glide Ultra Classic F/i 88 Ci 1999 - 2006 RK-3932*
Harley Davidson FLTRI Road Glide F/i 88 Ci 1999 - 2006 RK-3932*
Harley Davidson FLHXI Street Glide F/I 88 CI  2006 RK-3935*
Harley Davidson FLSTI Heritage Softail F/I 88 CI  2006 RK-3935*
Harley Davidson FXDBI Street Bob F/I 88 CI  2006 RK-3935*
Harley Davidson FXDI35 35th Anniv. Super Glide F/I 88 CI  2006 RK-3935*
Harley Davidson FLHXI Street Glide F/i 88 Ci  2006 RK-3932*
Harley Davidson FLSTI Heritage Softail F/i 88 Ci  2006 RK-3932*
Harley Davidson FXDBI Street Bob F/i 88 Ci  2006 RK-3932*
Harley Davidson FXDI35 35th Anniv. Super Glide F/i 1432  2006 RK-3932*
Harley Davidson FXDXI Dyna Super Glide Sport F/I 88 CI 2004 - 2005 RK-3935*
Harley Davidson FXDXI Dyna Super Glide Sport F/i 1450  2005 RK-3932*
Harley Davidson FXDXI Dyna Super Glide Sport F/i 1432  2004 RK-3932*
Harley Davidson FLSTSI Heritage Springer F/I 88 CI 2001 - 2003 RK-3935*
Harley Davidson FXSTSI Springer Softail F/i 1450 2001 - 2003 RK-3932*

*These air intakes are street legal in most states. Some of these parts are not legal for use on certain vehicles in California, or other states adopting California emission standards. Use our online search by part for CARB status of the part on specific vehicles.


 RK SERIES - HARLEY DAVIDSON SPORTSTER MODELS

K&N's Sportster RK Series Air Cleaner will get more horsepower from your Harley Davidson® Sportster motorcycle. This complete assembly fits inside the stock air cleaner cover, and provides a significant increase in airflow.

  • Developed around an Original K&N High-Flow Air Filter boosting performance and filtration
  • Internal breathers attach to backing plate, replacing external OE breathers
  • Dyno-tuned velocity stack optimizes airflow to engine
  • Powder coated aluminum backing plate provides solid mounting surface

RK series air intakes are street legal in most states. Some of these parts are not legal for use on certain vehicles in California, or other states adopting California emission standards. Use our online search by part for CARB status of the part on specific vehicles.


RK SERIES - HARLEY DAVIDSON SPORTSTER AIR CLEANER
Application Year CC Part#
XL883 Sportster / XL883 Sportster Custom 2004-2010 883 RK-3929
XL883L Sportster Low / XL883R Sportster 2005-2010 883 RK-3929
XL1200C Sportster Custom 2004-2010 1200 RK-3929
XL1200L Sportster Low 2006-2010 1200 RK-3929
XL1200R Sportster Roadster 2004-2008 1200 RK-3929
XL1200N Nightster 2007-2010 1200 RK-3929
 
 RK SERIES - HARLEY DAVIDSON TWIN-CAM AND SOFTAIL MODELS

The latest addition to 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 new RK Series assembly includes an innovative powder coated billet aluminum backplate 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. RK-3909 is Now 50 State Legal On 2001-2006 Fuel Injected Models.

  • Powder Coated Billet Aluminum Backplate Eliminates External Breathers
  • Features a Built-In Dyno-Tuned Velocity Stack
  • Retains Factory Air Cleaner Cover
  • Includes Washable/Reusable K&N High-Flow Air Filter
  • Does Not Fit Twin Cam® Engines with Magneti Marelli Fuel Injection System

RK series air intakes are street legal in most states. Some of these parts are not legal for use on certain vehicles in California, or other states adopting California emission standards. Use our online search by part for CARB status of the part on specific vehicles.

RK SERIES - HARLEY DAVIDSON TWIN-CAM AIR CLEANER
 
Application Size Year Part#
Twin-Cam Custom Assembly 1 5/8" 1999-2010 RK-3909-1
Twin-Cam Assembly, Large Capacity 2 1/4" 1999-2010 RK-3910-1
Large Capacity Filter Element for RK-3909 (includes longer spacers) 2 1/4" 1999-2010 RT-3910
 
See K&N Application & Part Search
 
 HARLEY DAVIDSON TOURING MODELS CUSTOM ASSEMBLY 2008-2009

  • Oversized cast-aluminum Backing Plate with internal-run breather system
  • Features a Built-In Dyno-Tuned Velocity Stack
  • Retains Factory Air Cleaner Cover
  • Includes Washable/Reusable K&N High-Flow Air Filter

RK series air intakes are street legal in most states. Some of these parts are not legal for use on certain vehicles in California, or other states adopting California emission standards. Use our online search by part for CARB status of the part on specific vehicles.

HARLEY DAVIDSON TOURING MODELS CUSTOM ASSEMBLY 2008-2009
 
Application Size Year Part#
Touring Models Custom Assembly 1 5/8" 2008-2010 RK-3930
 
 HARLEY DAVIDSON DYNA MODELS CUSTOM ASSEMBLY 2008-2010

  • Oversized cast-aluminum Backing Plate with internal-run breather system
  • Features a Built-In Dyno-Tuned Velocity Stack
  • Retains Factory Air Cleaner Cover
  • Includes Washable/Reusable K&N High-Flow Air Filter

RK series air intakes are street legal in most states. Some of these parts are not legal for use on certain vehicles in California, or other states adopting California emission standards. Use our online search by part for CARB status of the part on specific vehicles.

HARLEY DAVIDSON TOURING MODELS CUSTOM ASSEMBLY 2008-2009
 
Application Size Year Part#
Dyna Models Custom Assembly 2 1/8" 2008-2010 RK-3931
 
 RK SERIES BILLET AIR CLEANER ASSEMBLIES - EVO MODELS

A remarkable combination of performance and style, K&N air cleaner assemblies custom designed for your Harley-Davidson®.  Machined from billet aluminum, luster polished, then chrome plated to complement your show bike.

Two unique styles (shapes); Three unique finishes: Mirror, Ball Grooved or Flamed

These K&N custom air cleaners fit all "EVO" model Big-Twin and Sportster's with stock carburetors.  Each K&N air cleaner comes complete and ready to use, including mounting bracket kit, nothing else to buy.  These filters are legal only for racing vehicles.  Not applicable, nor intended for use on emission controlled street or highway vehicles.

  • Machined from billet aluminum, luster polished and chrome-plated
  • Oversized, original K&N High-Flow Air Filter
  • Powder-coated billet aluminum backing plate
  • Includes breather tubes and all necessary mounting hardware
  • Available in round or teardrop shapes and three unique finishes
  • Fits all EVO model Big Twin and 1200 Sportster's with stock carburetors

RK series air intakes are street legal in most states. Some of these parts are not legal for use on certain vehicles in California, or other states adopting California emission standards. Use our online search by part for CARB status of the part on specific vehicles.


Honda VTX1800 Air Filter RK-3903 Honda VTX1800 Air Filter RK-3904 Honda VTX1800 Air Filter RK-3914
Mirror RK-3903 Mirror RK-3904 Ball Grove RK-3914
Honda VTX1800 Air Filter RK-3923 Wrap Honda VTX1800 Air Filter RK-3924 Wrap
Flamed RK-3923 with filter wrap Flamed RK-3924 with filter wrap

SPORTSTER 1200cc 1991-1997

Style Assembly Part # Air Cleaner Only Part # Filter DryCharger Part #
Teardrop "Mirror" RK-3904 E-3333 RK-3902PK
Teardrop "Ball Grooved" RK-3914 E-3333 RK-3902PK
Teardrop "Flamed" RK-3924 E-3333 RK-3902PK
Round "Mirror" RK-3903 E-3336 RK-3901PK
Round "Ball Grooved" RK-3913 E-3336 RK-3901PK
Round "Flamed" RK-3923 E-3336 RK-3901PK

BIG TWIN 1340cc 1992-1997

Style Assembly Part # Air Cleaner Only Part # Filter DryCharger Part #
Teardrop "Mirror" RK-3902 E-3333 RK-3902PK
Teardrop "Ball Grooved" RK-3912 E-3333 RK-3902PK
Teardrop "Flamed" RK-3922 E-3333 RK-3902PK
Round "Mirror" RK-3901 E-3336 RK-3901PK
Round "Ball Grooved" RK-3911 E-3336 RK-3901PK
Round "Flamed" RK-3921 E-3336 RK-3901PK

RK series air intakes are street legal in most states. Some of these parts are not legal for use on certain vehicles in California, or other states adopting California emission standards. Use our online search by part for CARB status of the part on specific vehicles.


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