Intake System-Harley Davidson

$299.99 Regular Price $249.99 Special Price $50 OFF FOR A LIMITED TIME
In stock
SKU
RK-3909-1
Ships out in 1-2 business days
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.
  • Designed to increase horsepower & torque
  • Dyno-tuned velocity stack
  • Washable and reusable
  • Excellent air filtration
Estimated Horsepower Gain6.05 HP @ 5206 RPM
Replacement FilterE-3972
Air Filter ColorRed
Air Filter MaterialCotton Gauze
WarrantyNo-Hassle Lifetime Limited
Product StyleMotorcycle Intake System
Size7 Inch
Air Filter ShapeRound
Air Filter Height1.625 in (41 mm)
Air Filter Inside Diameter6.188 in (157 mm)
Air Filter Outlet ShapeNot Flanged
CARB EO NumberD-269-35/55
Street Legal In All US StatesSee Vehicle Applications
TUV Approved (Europe)No
Inlet Diameter2.25 in (57 mm)
Overall Height1.688 in (43 mm)
Top StyleMetal
Top MaterialBlack Powder Coated
Clamps IncludedNo Clamps Included
Clamp StyleNo Clamps Required
Clamp MaterialNo Clamps Required
Weight3.3 lb (1.5 kg)
Product Box Height4.88 in (124 mm)
Product Box Length11.75 in (298 mm)
Product Box Width9.5 in (241 mm)
Couplers IncludedNone
Mounting Hardware IncludedYes
Neck Flange2.25 in (57 mm)
StyleOval
No cross references found for this part

Search By Vehicle
Find Parts for your vehicle
*
Search By Dimension
The item you added to cart DOES NOT FIT your
This item fits your

The item(s) below fits your vehicle