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RK-3944
$261.99 USD
MSRP $456.89 42.7% Off
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K&N RK-3944 Intake System-Harley Davidson

Custom Assemblies > Intake System-Harley Davidson
  • Designed for Harley-Davidson motorcycles
  • Increase horsepower and torque
  • Easy to install
  • Made in USA
  • Backed by K&N warranty
The K&N RK-3944 Intake System-Harley Davidson fits some Harley Davidson XL1200C Sportster Custom, Harley Davidson XL1200L Sportster Low, Harley Davidson XL1200N Sportster Nightster, Harley Davidson XL1200R Sportster Roadster, Harley Davidson XL1200T SuperLow, Harley Davidson XL1200V Seventy-Two, Harley Davidson XL1200X Forty-Eight, Harley Davidson XL50 50th Anniversary Sportster, Harley Davidson XL883 Sportster, Harley Davidson XL883C Sportster Custom, Harley Davidson XL883L Sportster Low, Harley Davidson XL883L SuperLow, Harley Davidson XL883N Iron, and Harley Davidson XL883R Sportster models. See vehicle applications link for details.
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 custom round chrome 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.

[RK Series Street Metal High Flow Air Intakes for Harley-Davidson Motorcycles]

Product Specifications

Estimated Horsepower Gain4.33 HP @ 5596 RPM
Replacement FilterHD-0800
Air Filter ColorRed
Air Filter MaterialCotton Gauze
Warranty1,000,000 Miles/10 Year
Product StyleMotorcycle Intake System
Air Filter Height2.125 in (54 mm)
CARB EO NumberD-269-59
Street Legal In All US StatesSee Application Link Above
TUV Approved (Europe)No
Overall Height2.25 in (57 mm)
Top MaterialChrome
Weight3.8 lb (1.7 kg)
Product Box Height4.88 in (124 mm)
Product Box Length11.75 in (298 mm)
Product Box Width9.5 in (241 mm)
Mounting Hardware IncludedYes
Horsepower gains based on similar vehicle dynamometer test. Results will vary.

K&N RK-3944 Intake System-Harley Davidson Product Reviews