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K&N · RK-3944B

Part #: RK-3944B
UPC: 024844364197

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Description: K&N's Street Metal Series High-Flow Air Intake Systems provide a good looking appearance, offer increased airflow and deliver more horsepower & torque to your Harley-Davidson motorcycle.

Description:

Description

K&N's Street Metal Series High-Flow Air Intake Systems provide attractive styling, offer increased airflow and deliver more horsepower & torque to your Harley-Davidson motorcycle. These air intake systems eliminate the stock OE air cleaner and replace it with a complete high-flow air intake system to increase power. The sturdy, custom aluminum backing plate mounts directly to the throttle body via an aluminum integrated, internal-run breather system. The air intake system comes with a K&N Air Filter for high air flow and long service intervals. The K&N air filter is washable, reusable, pre-oiled and ready for installation. To help absorb vibration, a durable mounting gasket is also included. A distinguished black custom cover with beveled edges gives this air intake versatile styling that will enhance your bike's appeal, whether you're going for old school or ultra-modern.

Features & benefits

  • Designed for Harley-Davidson motorcycles

Application summary

Year Make / model
2004-2013 Harley-Davidson XL1200C Sportster 1200 Custom
2007-2011 Harley-Davidson XL1200L Sportster 1200 Low
2007-2012 Harley-Davidson XL1200N Sportster 1200 Nightster
2004-2009 Harley-Davidson XL1200R Sportster 1200 Roadster
2012-2013 Harley-Davidson XL1200V Seventy-Two
2010-2013 Harley-Davidson XL1200X Forty-Eight
2007 Harley-Davidson XL50 50th Anniversary Sportster
2004-2008 Harley-Davidson XL883 Sportster
2004-2010 Harley-Davidson XL883C Sportster 883 Custom
2005-2010 Harley-Davidson XL883L Sportster 883 Low
2011-2014 Harley-Davidson XL883L SuperLow
2009-2013 Harley-Davidson XL883N Iron 883
2006-2010 Harley-Davidson XL883R Sportster 883 Roadster

Specifications

GTIN
00024844364197
Weight
3.8 lb
Height
4.88 in
Length
11.75 in
Width
9.5 in
EO
Legal US
Life cycle
Discontinued
Alt. part number
RK-3944B
AAM brand code
KAN
Warehouse brand code
KAN
AAIA brand code
BBWQ

Attributes

Air Filter Color
Red
Air Filter Height
2.125 in (54 mm)
Air Filter Material
Cotton Gauze
Air Filter Washable
Yes
Alternate Part Number
RK-3944B
CARB EO Number
D-269-59
California Proposition 65
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
California Restricted
Not legal for sale or use in California
Color / Finish
Red Filter, Metal Top
Estimated Horsepower Gain
4.33 HP @ 5596 RPM
Horse Power Increase
4 HP
Mounting Hardware Included
Yes
Overall Height
2.25 in (57 mm)
Package Material
Corrugated
Package Type
Box
Product Box Height
4.88 in (124 mm)
Product Box Length
11.75 in (298 mm)
Product Box Width
9.5 in (241 mm)
Product Style
Motorcycle Intake System
RPM
5596
Replacement Filter
HD-0800
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.
TUV Approved (Europe)
No
Title
K&N RK-3944B Intake System-Harley Davidson
Top Material
Black Powder Coated
Warranty
No-Hassle Lifetime Limited
Weight
3.8 lb (1.7 kg)

Fitment status

Select a vehicle or engine to see whether this part applies to your application.

Application summary

2004-2013 Harley-Davidson XL1200C Sportster 1200 Custom; 2007-2011 Harley-Davidson XL1200L Sportster 1200 Low; 2007-2012 Harley-Davidson XL1200N Sportster 1200 Nightster; 2004-2009 Harley-Davidson XL1200R Sportster 1200 Roadster; 2012-2013 Harley-Davidson XL1200V Seventy-Two; 2010-2013 Harley-Davidson XL1200X Forty-Eight; 2007 Harley-Davidson XL50 50th Anniversary Sportster; 2004-2008 Harley-Davidson XL883 Sportster; 2004-2010 Harley-Davidson XL883C Sportster 883 Custom; 2005-2010 Harley-Davidson XL883L Sportster 883 Low; 2011-2014 Harley-Davidson XL883L SuperLow; 2009-2013 Harley-Davidson XL883N Iron 883; 2006-2010 Harley-Davidson XL883R Sportster 883 Roadster