K&N RK-3930 Intake System-Harley Davidson
  • K&N RK-3930 Intake System-Harley Davidson
K&N

K&N RK-3930 Intake System-Harley Davidson

Part Number:RK-3930
The K&N RK-3930 Air Intake System was designed to get more horsepower from your Twin Cam Harley-Davidson engine. Built around the legendary K&N High-Flow Air Filter, 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.
  • Fits inside stock cover
  • Increases horsepower
  • Provides increased air flow
  • Washable and reusable
Retail price
  • $199.99
Features
  • SKU
    RK-3930
  • Brand
    K&N
  • CARB EO Number
    Please Refer to Vehicle Fitment Data for CARB EO Information
  • Estimated Horsepower Gain
    8.43 HP @ 3700 RPM
  • Filter Color
    Red
  • Filter Height
    1.625 in.
  • Filter Inside Diameter
    6.188 in.
  • Filter Lid Finish
    Aluminum
  • Filter Material
    Cotton Gauze
  • Filter Outlet Shape
    Not Flanged
  • Filter Shape
    Oval
  • Filter Washable
    Yes
  • Includes Air Box
    No
  • Includes Clamps
    No
  • Includes Clamps
    Not Required
  • Includes Couplers
    No
  • Includes Filter Oil
    Yes
  • Includes Mass Air Flow Sensor Adapter
    No
  • Includes Mounting Hardware
    Yes
  • Inlet Diameter
    2.469 in.
  • Neck Flange
    2.469 in. (63 mm)
  • Overall Height
    1.875 in.
  • Package Material
    Box
  • Package Material
    Paperboard
  • Product Style
    Motorcycle Intake System
  • Prop 65 - Required to list in California with Warning
    Yes
  • Prop 65 - Short Label
    WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
  • Prop 65 - Type
    Cancer and Reproductive
  • Prop 65 - Warning Image Label
    https://www.knfilters.com/images/l/prop65.jpg
  • Replacement Filter
    E-3972
  • Size
    9 in.
  • Style
    Oval
  • TUV Approved (Europe)
    No
  • Top Material
    Aluminum
  • Top Style
    Metal
  • Warranty
    Limited Lifetime
  • Weight
    3.5 lbs. (1.6 kg)
See More
Fitment
Installation
Videos

Buy From a Seller

Zip code
Distance