K&N Cold Air Intake System: High-Flow Air Filter, Increase Performance & Acceleration: Compatible with 2008-2017 Harley Davidson: (See Product Descriptionf for Selected Models) RK-3951

★★★★★ 4.6 97 reviews

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Management number 212922200 Release Date 2026/04/12 List Price $36.00 Model Number 212922200
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K&N is the inventor of the Air Intake System and has over 50 years of experience in the performance filtration industry. Proudly designed and manufactured in the USA, this premium cold air intake system is specifically designed for your vehicle and is dyno tested to provide a guaranteed increase in horsepower. It features a high flow intake tube, custom heat shield, and oversized K&N Washable High-Flow Cotton Air Filter for ultimate airflow. This Intake system replaces the restrictive OEM air box to provide an improved driving experience for daily driving or towing. It installs easily in about 60 minutes and is backed by a No-Hassle Lifetime Limited Warranty and will not void your factory warranty.Compatible Vehicles:2009-2012 HARLEY DAVIDSON FLHP Road King Police2008-2016 HARLEY DAVIDSON FLHR Road King2008-2013 HARLEY DAVIDSON FLHRC Road King Classic2008-2008 HARLEY DAVIDSON FLHRSE4 Screamin Eagle Road King2008-2010 HARLEY DAVIDSON FLHT Electra Glide Standard2008-2013 HARLEY DAVIDSON FLHTC Electra Glide Classic2012-2012 HARLEY DAVIDSON FLHTCU Electra Glide Ultra Classic2008-2013 HARLEY DAVIDSON FLHTCU Ultra Classic Electra Glide2010-2010 HARLEY DAVIDSON FLHTCUSE5 CVO Ultra Classic Electra Glide2009-2013 HARLEY DAVIDSON FLHTCUTG Tri Glide Ultra Classic2011-2014 HARLEY DAVIDSON FLHTK Electra Glide Ultra Limited2015-2016 HARLEY DAVIDSON FLHTK Ultra Limited2015-2016 HARLEY DAVIDSON FLHTKL Ultra Limited Low2009-2012 HARLEY DAVIDSON FLHTP Electra Glide Police2008-2016 HARLEY DAVIDSON FLHX Street Glide2014-2016 HARLEY DAVIDSON FLHXS Street Glide Special2010-2011 HARLEY DAVIDSON FLHXXX Street Glide Trike2015-2016 HARLEY DAVIDSON FLRT Freewheeler2016-2017 HARLEY DAVIDSON FLS Softail Slim2016-2017 HARLEY DAVIDSON FLSS Softail Slim S2016-2017 HARLEY DAVIDSON FLSTC Heritage Softail Classic2016-2017 HARLEY DAVIDSON FLSTF Fat Boy2016-2017 HARLEY DAVIDSON FLSTFB Softail Fat Boy Lo2016-2017 HARLEY DAVIDSON FLSTFBS Fat Boy S2016-2017 HARLEY DAVIDSON FLSTN Softail Deluxe2008-2011 HARLEY DAVIDSON FLTR Road Glide2011-2013 HARLEY DAVIDSON FLTRU Road Glide Ultra2015-2016 HARLEY DAVIDSON FLTRX Road Glide2010-2014 HARLEY DAVIDSON FLTRX Road Glide Custom2015-2016 HARLEY DAVIDSON FLTRXS Road Glide Special2016-2017 HARLEY DAVIDSON FXSB Breakout-

  • GUARANTEED INCREASE IN HORSEPOWER & TORQUE: K&N cold air intake systems provide a less restrictive path for airflow, increasing the volume of cool, oxygen-rich air into your engine.
  • DYNO TESTING YOU CAN TRUST: K&N air intake horsepower/torque testing is performed on wheel-based dynamometers and the reports are included with each intake system.
  • IMPROVED ENGINE SOUND - HEAR THE GROWL: K&N’s intake systems allow your engine to breathe and sound as it should- your engine will growl on acceleration and return to quiet once at speed.
  • BETTER ACCELERATION: K&N Air intake kit improves acceleration and uphill performance by improving throttle response, overall horsepower and torque. Excellent for daily and highway driving.
  • PREMIUM ENGINE PROTECTION FROM A TRUSTED BRAND: K&N air intake will not void manufacturer vehicle warranty & No-Hassle Lifetime Limited Warranty protects for the life of your vehicle.
  • HIGH-FLOW REUSABLE AIR FILTER: 4 layers of pleated, breathable cotton with K&N’s red filter oil to absorb dirt & dust particles, allowing clean air to continue flowing into your engine, only needs cleaning every 100k miles under normal highway conditions.
  • EASY TO INSTALL: Includes detailed, step-by-step instructions & all necessary parts- the entire air intake system can typically be installed in less than 60 minutes with basic hand tools.
  • MADE IN THE USA: Proudly made in the USA for trusted quality & reliability and backed by US based customer support.
UPC 024844364623
Fit Type Vehicle Specific Fit
Brand Name K&N
Unit Count 1.0 Count
Item Weight 4.72 Pounds
Manufacturer K&N Engineering
Model Number RK-3951
Product Grade Performance Part
Item Type Name Intake System (Harley Davidson)
Included Components Air Filter^Back Plate^Air Scoop^Air Scoop Base^Breather Bolt (2)^Literature Pack^Parts Kit
Manufacturer Part Number RK-3951
OEM Equivalent Part Number RK-3951
Manufacturer Warranty Description 3 Months
Global Trade Identification Number 00024844364623

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