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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 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 beautiful chromed round custom cover gives this air intake classic elegance, perfect for the garage queen or road warrior alike.

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

Product Specifications

Estimated Horsepower Gain7 HP @ 5204 RPM
Replacement FilterHD-0800
Air Filter ColorRed
Air Filter MaterialCotton Gauze
Product StyleMotorcycle Intake System
Air Filter ShapeRound Tapered
Air Filter Height2.125 in (54 mm)
Air Filter Outlet ShapeNot Flanged
CARB EO NumberD-269-55
Street Legal In All US StatesSee Application Link Above
TUV Approved (Europe)No
Inlet Diameter2.281 in (58 mm)
Overall Height2.375 in (60 mm)
Top StyleChrome
Top MaterialChrome
Clamps IncludedNo Clamps Included
Clamp StyleNo Clamps Required
Clamp MaterialNo Clamps Required
Weight4.2 lb (1.9 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
Neck Flange2.281 in (58 mm)
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.