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K&N

Intake System-Harley Davidson

Part Number RK-3955 (101819398)
Select vehicle for guaranteed fit
$274.99
In stockShips by 21st Oct

Description

K&N Street Metal Air Intake Systems for Harley Davidson Dyna, Softail, Touring and Twin-Cam Model motorcycles increase power by eliminating the restrictive stock OE air cleaner and replacing it with an oversized K&N High-Flow Air Filter™ and a cast aluminum high-volume aluminum housing. K&N high-flow intake systems give your Harley® an aggressive appearance while providing a significant increase in airflow resulting in more power.

For over 50 years, K&N® has been an industry-leader in automotive filtration and technology—offering products to increase performance, protection, and longevity in thousands of vehicle applications for consumers worldwide.

Fitment

This part fits the following vehicles.

  • 2018-2020 Harley-Davidson FLDE Deluxe 107
  • 2018-2019 Harley-Davidson FLFB Fat Boy 107
  • 2018-2023 Harley-Davidson FLFBS Fat Boy 114
  • 2018-2021 Harley-Davidson FLHC Heritage Classic 107
  • 2018-2023 Harley-Davidson FLHCS Heritage Classic 114
  • 2017-2022 Harley-Davidson FLHR Road King
  • 2018-2023 Harley-Davidson FLHRXS Road King Special
  • 2017-2019 Harley-Davidson FLHTCU Electra Glide Ultra Classic
  • 2017-2023 Harley-Davidson FLHTCUTG Tri Glide Ultra
  • 2019-2022 Harley-Davidson FLHT Electra Glide Standard
  • 2017-2019 Harley-Davidson FLHTKL Ultra Limited Low
  • 2017-2023 Harley-Davidson FLHTK Ultra Limited
  • 2017-2023 Harley-Davidson FLHXS Street Glide Special
  • 2017-2023 Harley-Davidson FLHX Street Glide
  • 2017-2023 Harley-Davidson FLRT Freewheeler
  • 2018-2022 Harley-Davidson FLSB Sport Glide 107
  • 2018-2021 Harley-Davidson FLSL Softail Slim 107
  • 2020-2023 Harley-Davidson FLTRK Road Glide Limited
  • 2023 Harley-Davidson FLTRT Road Glide 3
  • 2017-2019 Harley-Davidson FLTRU Road Glide Ultra
  • 2017-2023 Harley-Davidson FLTRX Road Glide
  • 2017-2023 Harley-Davidson FLTRXS Road Glide Special
  • 2021-2023 Harley-Davidson FXBBS Street Bob 114
  • 2018-2020 Harley-Davidson FXBB Street Bob 107
  • 2018-2019 Harley-Davidson FXBR Breakout 107
  • 2018-2021 Harley-Davidson FXBRS Breakout 114
  • 2018-2019 Harley-Davidson FXFB Fat Bob 107
  • 2018-2023 Harley-Davidson FXFBS Fat Bob 114
  • 2018-2020 Harley-Davidson FXLR Low Rider 107
  • 2020-2021 Harley-Davidson FXLRS Low Rider S 114
  • 2022 Harley-Davidson FXLRS Low Rider S 117
  • 2022-2025 Harley-Davidson FXLRST Low Rider ST 117
  • 2020-2023 Harley-Davidson FXST Softail Standard 107

Features & benefits

  • Guaranteed to increase horsepower
  • Designed to improve throttle response and engine sound
  • Cast aluminum high-volume, performance air intake housing
  • Washable and reusable K&N High-Flow cotton air filter that provides outstanding performance and protection
  • Integrated internal velocity stack
  • Built-in breathers replace external OE breathers
  • Easy to install, usually in 90 minutes or less
  • Cast aluminum high-volume, performance air intake housing in silver
  • Direct replacement - this engine air filter assembly is designed to match the performance of an original equipment filter box on specified vehicles
  • Restores performance - engineered to provide a tight seal that keeps out moisture and debris to help protect the air filter when a factory assembly is cracked, warped or missing
  • Durable construction - designed and manufactured to strict specifications for reliable performance
  • Trustworthy quality - backed by a team of product experts in the United States and more than a century of automotive experience
  • Associated products: E-3987 Custom Air Filter, 99-5000 Filter Care Service Kit Aerosol

Specifications

Air Filter Color Red
Air Filter Height 2.469 in (63 mm)
Air Filter Material Cotton Gauze
Air Filter Washable Yes
CARB EO Number D-269-60
Color / Finish Red Filter, Black Housing
Epa Compliant
Estimated Horsepower Gain 3.33 HP @ 4710 RPM
Mounting Hardware Included Yes
Overall Height 3.25 in (83 mm)
Package Contents 1 Air Filter
Package Material Paperboard
Package Type Box
Product Style Motorcycle Intake System
Replacement Filter E-3987
Retail Packaging Yes
Street Legal Yes
Street Legal In All US States Not legal for sale or use in California on any pollution controlled motor vehicle. NOTE: Some specific models and years may be legal in CA. Check the CARB status on your parts at knfilters.com.
Top Material Black Powder Coated
TUV Approved (Europe) No
Weight 5 lb (2.2 kg)

Warranty

No-Hassle Lifetime Limited

Videos and guides

Magnuson-Moss Warranty Act

Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)).

California residents

WARNING: This product can expose you to chemicals including nickel, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.

$274.99

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