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K&N Intake System for Harley Davidson Road Glide/Road King/Street Glide RK-3949

K&N Intake System for Harley Davidson Road Glide/Road King/Street Glide RK-3949

The K&N RK-3949 Intake System-Harley Davidson fits some Harley Davidson FLHR Road King, Harley Davidson FLHRXS Road King Special, Harley Davidson FLHTCU Electra Glide Ultra Classic, Harley Davidson FLHTCUTG Tri Glide Ultra, Harley Davidson FLHTK Ultra Limited, Harley Davidson FLHTKL Ultra Limited Low, Harley Davidson FLHX Street Glide, Harley Davidson FLHXS Street Glide Special, Harley Davidson FLRT Freewheeler, Harley Davidson FLSB Sport Glide, Harley Davidson FLSL Softail Slim, Harley Davidson FLTRU Road Glide Ultra, Harley Davidson FLTRX Road Glide, Harley Davidson FLTRXS Road Glide Special, Harley Davidson FXBB Street Bob, Harley Davidson FXFB Fat Bob, and Harley Davidson FXLR Low Rider 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 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 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. A flare-shaped chrome custom cover makes this air intake an excellent choice for increasing the performance and curb-appeal of your bike. 

Product Overview
  • Designed for Harley-Davidson motorcycles
  • Chrome cover plate
  • Increase horsepower and torque
  • Easy to install
  • Made in USA
  • Backed by K&N warranty
  • Washable and reusable
Product Specification

Estimated Horsepower Gain 7.42 HP 4812 RPM
Replacement Filter E-3989
Air Filter Color Red
Air Filter Material Cotton Gauze
Warranty 1,000,000 Miles/10 Year
Product Style Motorcycle Intake System
Air Filter Height 2 in (51 mm)
CARB EO Number D-269-60
Street Legal In All US States See Vehicle Applications
TUV Approved (Europe) No
Overall Height 4.5 in (114 mm)
Top Material Aluminum
Weight 5.2 lb (2.4 kg)
Product Box Height 4.88 in (124 mm)
Product Box Length 11.75 in (298 mm)
Product Box Width 9.5 in (241 mm)
Mounting Hardware Included Yes

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