RK-3921 K&N SPECIAL ORDER Intake Sys-Harley Davidson

$417.69
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SKU
RK-3921
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SPECIAL ORDER Intake Sys-Harley Davidson
K&N air cleaner assemblies, designed for your Harley-Davidson, are a remarkable combination of performance and style. These air cleaner assemblies are made to increase horsepower and torque by supplying superior air flow. They are machined from billet aluminum, luster polished, then chrome plated to complement your show bike. This K&N custom air cleaner fits select Dyna, Softail, and Touring models. Each K&N air cleaner comes complete and ready to use including, a mounting bracket kit. There’s nothing else to buy. Installation is easy, so exceptional performance is only a few steps away with a K&N custom air cleaner. Not only that, but these parts are designed for optimal looks. The nostalgic flame pattern on this round chrome cover is a classic.
  • Designed to increase horsepower & torque
  • Washable and reusable
  • Attractive custom look
  • Chrome-plated cover
Replacement FilterE-3336
Air Filter ColorRed
Air Filter MaterialCotton Gauze
Warranty1,000,000 Miles/10 Year
Product StyleMotorcycle Intake System
Size6-8
Air Filter ShapeRound
Air Filter Height2.25 in (57 mm)
Air Filter Inside Diameter6.125 in (156 mm)
Air Filter Outlet ShapeNot Flanged
Street Legal In All US States No
TUV Approved (Europe)No
Inlet Diameter2.313 in (59 mm)
Overall Height2.5 in (64 mm)
Top StyleAluminum - Flamed Design
Top MaterialChrome
Clamps IncludedNo Clamps Included
Clamp StyleNo Clamps Required
Clamp MaterialNo Clamps Required
Weight4.5 lb (2.1 kg)
Product Box Height4.5 in (114 mm)
Product Box Length11.56 in (294 mm)
Product Box Width9.5 in (241 mm)
California RestrictedNot legal for sale or use in California
Couplers IncludedNone
Mounting Hardware IncludedYes
Neck Flange2.313 in (59 mm)
StyleRound
No cross references found for this part

Warning: Cancer & Reproductive Harm – P65Warnings.ca.gov

K&N Products

Unmatched Performance

50 years of improving vehicle performance.

intake

Cold Air Intakes

Custom-engineered tubes deliver better airflow than you get with a stock intake. More air means better performance.

air filters

Air Filters

Using cotton gauze instead of typical folded paper, our filters increase airflow while providing excellent engine protection.

cabin air filter

Cabin Air Filters

Helps capture most mold, mildew, fungus, spores, bacteria, germs, pollen and allergens, and helps to rid the air of unpleasant odors.

oil filters

Oil Filters

K&N oil filters use a high flow filter media that allows for high flow rates while providing outstanding engine protection.

tuning

Speed Shop

From custom air filters to fuel pumps and carb accessories, the K&N Speed Shop has been assembled to help your vehicle run at peak performance.

hvac

Home Air Filters

New washable and reusable air conditioning and furnace filters for your home. From the industry leader in washable automotive filtration.

filter

FUEL FILTERS

cleaning

CLEANING KITS

diesel filter

HD DIESEL

powersports

POWERSPORTS

OUR STORY

WHY K&N?


K&N is the home of the original red oiled air filter. In the early 1960s, two motorcycle racers, Ken Johnson and Norm McDonald (K&N), developed a ground-breaking new idea for an oiled air filter. Five decades later, K&N® is still innovating industry-leading filtration technology, and offers outstanding protection for everything from top-fuel dragsters to commuter vehicles across the globe. Thank you for helping us reach 50 years in business!


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