K&N

Intake System-Harley Davidson

Name: Intake System-Harley Davidson
Brand: K&N
SKU: 101819377
Price: 274.99 USD
Availability: OutOfStock

Part Number RK-3909-1 (101819377)

Select vehicle for guaranteed fit

Size

$274.99

Out of stock

Description

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.

For over 50 years, K&N® has been an industry-leader in automotive filtration and technology—offering products to increase performance, protection, and longevity in thousands of vehicle applications for consumers worldwide.

Fitment

This part fits the following vehicles.

2002-2006 Harley-Davidson FLHRCI Road King Classic
2007 Harley-Davidson FLHRC Road King Classic
2003-2006 Harley-Davidson FLHRI Road King
1999-2007 Harley-Davidson FLHR Road King
2004-2006 Harley-Davidson FLHRSI Road King Custom
2004-2007 Harley-Davidson FLHRS Road King Custom
1999-2005, 2007 Harley-Davidson FLHTC Electra Glide Classic
2002-2006 Harley-Davidson FLHTCI Electra Glide Classic
2007 Harley-Davidson FLHTCU Electra Glide Ultra Classic
2002-2006 Harley-Davidson FLHTCUI Electra Glide Ultra Classic
1999-2007 Harley-Davidson FLHT Electra Glide Standard
2003-2006 Harley-Davidson FLHTI Electra Glide Standard
2006 Harley-Davidson FLHXI Street Glide
2006-2007 Harley-Davidson FLHX Street Glide
2000-2012 Harley-Davidson FLSTC Heritage Softail Classic
2002-2006 Harley-Davidson FLSTCI Heritage Softail Classic
2010-2012 Harley-Davidson FLSTFB Fat Boy Lo
2000-2012 Harley-Davidson FLSTF Fat Boy
2001-2006 Harley-Davidson FLSTFI Fat Boy
2006 Harley-Davidson FLST Heritage Softail
2006 Harley-Davidson FLSTI Heritage Softail
2005-2006 Harley-Davidson FLSTNI Softail Deluxe
2005-2012 Harley-Davidson FLSTN Softail Deluxe
2005-2006 Harley-Davidson FLSTSCI Softail Springer Classic
2005-2007 Harley-Davidson FLSTSC Softail Springer Classic
2000-2003 Harley-Davidson FLSTS Heritage Springer
2001-2003 Harley-Davidson FLSTSI Heritage Springer
2002-2006 Harley-Davidson FLTRI Road Glide
1999-2002, 2007 Harley-Davidson FLTR Road Glide
2008-2011 Harley-Davidson FXCWC Rocker C
2008-2009 Harley-Davidson FXCW Rocker
2006 Harley-Davidson FXDBI Street Bob
2007 Harley-Davidson FXDB Street Bob
2005-2006 Harley-Davidson FXDCI Super Glide Custom
2005, 2007 Harley-Davidson FXDC Super Glide Custom
1999-2007 Harley-Davidson FXD Dyna Super Glide
2006 Harley-Davidson FXDI35 Dyna 35th Anniversary Super Glide
2004-2006 Harley-Davidson FXDI Dyna Super Glide
1999-2005, 2007 Harley-Davidson FXDL Dyna Low Rider
2004-2006 Harley-Davidson FXDLI Dyna Low Rider
1999-2000 Harley-Davidson FXDS-Conv Dyna Convertible
1999-2007 Harley-Davidson FXDWG Dyna Wide Glide
2004-2006 Harley-Davidson FXDWGI Dyna Wide Glide
1999-2004 Harley-Davidson FXDX Dyna Super Glide Sport
2004-2005 Harley-Davidson FXDXI Dyna Super Glide Sport
2001-2003 Harley-Davidson FXDXT Dyna Super Glide T-Sport
2001-2006 Harley-Davidson FXSTBI Night Train
2000-2009 Harley-Davidson FXSTB Night Train
2007-2010 Harley-Davidson FXSTC Softail Custom
2001-2006 Harley-Davidson FXSTDI Softail Deuce
2000-2007 Harley-Davidson FXSTD Softail Deuce
2001-2006 Harley-Davidson FXSTI Softail Standard
2001-2006 Harley-Davidson FXSTSI Springer Softail
2000-2009 Harley-Davidson FXST Softail Standard
2000-2006 Harley-Davidson FXSTS Springer Softail

Features & benefits

Designed to increase horsepower & torque
Dyno-tuned velocity stack
Washable and reusable
Excellent air filtration
Direct replacement - this engine air filter assembly is designed to match the performance of an original equipment filter box on specified vehicles
Restores performance - engineered to provide a tight seal that keeps out moisture and debris to help protect the air filter when a factory assembly is cracked, warped or missing
Durable construction - designed and manufactured to strict specifications for reliable performance
Trustworthy quality - backed by a team of product experts in the United States and more than a century of automotive experience
Associated products: E-3972 Round Air Filter, 99-5000 Filter Care Service Kit Aerosol

Specifications

Air Box Included	No
Air Filter Color	Red
Air Filter Height	1.625 in (41 mm)
Air Filter Inside Diameter	6.188 in (157 mm)
Air Filter Material	Cotton Gauze
Air Filter Outlet Shape	Not Flanged
Air Filter Shape	Round
Air Filter Washable	Yes
CARB EO Number	D-269-35
Clamp Color/Finish	Not Applicable
Clamp Material	No Clamps Required
Clamp Style	No Clamps Required
Clamps Included	No Clamps Included
Color / Finish	Red Filter, Metal Top
Country Of Origin	USA
Couplers Included	None
Epa	Compliant
Estimated Horsepower Gain	6.05 HP @ 5206 RPM
Inlet Diameter	2.25 in (57 mm)
Mass Air Flow Sensor Adapter Included	No
Mounting Hardware Included	Yes
Neck Flange	2.25 in (57 mm)
Oil Included	Yes
Overall Height	1.688 in (43 mm)
Package Material	Paperboard
Package Type	Box
Product Style	Motorcycle Intake System
Replacement Filter	E-3972
Retail Packaging	Yes
Size	7 Inch
Street Legal	Yes
Street Legal In All US States	Not legal for sale or use in California on any pollution controlled motor vehicle. NOTE: Some specific models and years may be legal in CA. Check the CARB status on your parts at knfilters.com.
Style	Oval
Top Material	Black Powder Coated
Top Style	Metal
TUV Approved (Europe)	No
Weight	3.3 lb (1.5 kg)

Warranty

No-Hassle Lifetime Limited

Videos and guides

Installation Instructions PDF

California residents

WARNING: This product can expose you to chemicals including nickel, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.