E-3988 K&N Custom Air Filter

$52.99
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SKU
E-3988
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Custom Air Filter
The K&N replacement air filter for RK Series air cleaner assemblies is designed to increase horsepower and acceleration while providing excellent filtration. The air filter is washable and reusable and designed to be used as a replacement air filter for specific K&N RK Series air cleaner assemblies for Harley-Davidson® motorcycles. The air filter is covered by the famous K&N Million-Mile Limited Warranty.
  • Replacement air filter for specific RK Series air cleaner assemblies
  • Designed to boost horsepower and rate of acceleration
  • Washable and reusable
  • High air flow filter media provides exceptional filtration
  • Million Mile Limited Warranty®
Air Filter ShapeOval Tapered
Height2.375 in (60 mm)
Package Contents1 Air Filter
Package Quantity1
WashableYes
Product StyleUnique Air Filters
Filter MaterialCotton Gauze
FlangesNone
Base Outside Length10 in (254 mm)
Base Outside Width6 in (152 mm)
Top Outside Length8 in (203 mm)
Top Outside Width5 in (127 mm)
Outside Diameter9.313 in (237 mm)
Weight1.1 lb (0.5 kg)
Product Box Height3 in (76 mm)
Product Box Length10.63 in (270 mm)
Product Box Width8 in (203 mm)
Inner WireNo
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Warning: Cancer & Reproductive Harm – P65Warnings.ca.gov

K&N Products

Unmatched Performance

50 years of improving vehicle performance.

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

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

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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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