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K&N RK-3933 Intake System-Harley Davidson

Custom Assemblies > Intake System-Harley Davidson
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   4.8 out of 5 stars   5 Customer Reviews
  • Designed for Harley-Davidson motorcycles
  • Increase horsepower and torque
  • Easy to install
  • Made in USA
  • Backed by K&N warranty
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. These intake systems increase power by eliminating the stock OE air cleaner and replacing it with a complete high-flow air intake system. 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. A durable mounting gasket is also included to help absorb vibration. The K&N high-flow air filter is washable, reusable, pre-oiled and ready for installation. Simple designed custom covers give this air intake good looks while powering down the highway or at your local show.

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

Product Specifications

Estimated Horsepower Gain7 HP @ 5204 RPM
Air Filter ColorRed
Air Filter Height2.125 in (54 mm)
Air Filter MaterialCotton Gauze
Air Filter Outlet ShapeNot Flanged
Air Filter ShapeRound Tapered
CARB EO NumberD-269-55
Clamp MaterialNo Clamps Required
Clamp StyleNo Clamps Required
Clamps IncludedNo Clamps Included
Inlet Diameter2.281 in (58 mm)
Mounting Hardware IncludedYes
Neck Flange2.281 in (58 mm)
Overall Height2.375 in (60 mm)
Product Box Height4.88 in (124 mm)
Product Box Length11.75 in (298 mm)
Product Box Width9.5 in (241 mm)
Product StyleMotorcycle Intake System
Replacement FilterHD-0800
Street Legal In All US StatesSee Application Link Above
Top MaterialChrome
Top StyleChrome
TUV Approved (Europe)No
Weight4.2 lb (1.9 kg)
Horsepower gains based on similar vehicle dynamometer test. Results will vary.

K&N RK-3933 Intake System-Harley Davidson Product Reviews

Thursday, July 21, 2016 - Part RK-3933
I have K&N filters on everything I own, it is a great product! I will continue to use K&N on all my equipment, there is no better filter on the market to date. Thank you for a great product!

Stephen Bennett
Lebanon, Connecticut
Monday, March 7, 2016 - Part RK-3933
This intake system is great, easy to install and it looks great as well. But the biggest thing is the Power difference...definitely a power gain you can feel...I was skeptical...but now I'm a believer. And it actually made my Bike sound better. 2007 Electra Glide Ultra, 96CI, true Duals, Reinhardt Slip ons

Wynn Kimball
Raymond New Hampshire
Saturday, August 22, 2015 - Part RK-3933
Works great much more top end power.

Charles Weesner
Wichita, Kansas
Tuesday, June 9, 2015 - Part RK-3933
Easy to install. Great performance.

Matthew Mariotti
Medina, Ohio
Wednesday, September 10, 2014 - Part RK-3933
Excellent product, very easy to install, very clear instructions provided. The package got here quickly. Looks great, and improved the sound of the bike ('14 Heritage) immediately. I still have stock pipes on, but it definitely responds more quickly to the throttle. One note, it extends just a little farther out than the stock air intake.