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RK-3929
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K&N RK-3929 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   5.0 out of 5 stars   2 Customer Reviews
  • Increases power
  • Washable and reusable
  • Provides increased air flow
  • Fits inside stock cover
The K&N RK-3929 Intake System-Harley Davidson fits some Harley Davidson XL1200C Sportster Custom, Harley Davidson XL1200L Sportster Low, Harley Davidson XL1200N Sportster Nightster, Harley Davidson XL1200R Sportster Roadster, Harley Davidson XL1200X Forty-Eight, Harley Davidson XL50 50th Anniversary Sportster, Harley Davidson XL883 Sportster, Harley Davidson XL883C Sportster Custom, Harley Davidson XL883L Sportster Low, Harley Davidson XL883L SuperLow, Harley Davidson XL883N Iron, and Harley Davidson XL883R Sportster models. See vehicle applications link for details.
K&N's Sportster RK Series Air Cleaner will get more horsepower from your Harley Davidson Sportster motorcycle. This complete assembly fits inside the stock air cleaner cover, and provides a significant increase in airflow.

[More Information on High-Flow Air Intake Systems for Harley-Davidson Motorcycles]

Product Specifications

Estimated Horsepower Gain4.4 HP @ 5497 RPM
Replacement FilterE-3040
Air Filter ColorRed
Air Filter MaterialCotton Gauze
Product StyleMotorcycle Intake System
Size10-12
Air Filter ShapeOval
Air Filter Height2.25 in (57 mm)
Air Filter Inside Diameter8.063 in (205 mm)
Air Filter Outlet ShapeNot Flanged
CARB EO NumberD-269-35/55
Street Legal In All US StatesYes
TUV Approved (Europe)No
Inlet Diameter2.5 in (64 mm)
Overall Height2.5 in (64 mm)
Top StyleMetal
Top MaterialAluminum
Clamps IncludedNo Clamps Included
Clamp StyleNo Clamps Required
Clamp MaterialNo Clamps Required
Weight3.1 lb (1.4 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 Flange2.5 in (64 mm)
StyleOval
Horsepower gains based on similar vehicle dynamometer test. Results will vary.

K&N RK-3929 Intake System-Harley Davidson Product Reviews

Friday, June 9, 2017 - Part RK-3929
Fitting instructions are well written and easy to follow. Quality is outstanding. Nice improvement in HP & response . Happy old bloke here!

Bradley Howard
Narre Warren South, Australia
Friday, October 28, 2016 - Part RK-3929
Fast delivery, helpful staff and a great product.

Adam Anasinski
Golf, Illinois