Skip to product information
K&N AIR FILTER RK-3910-1 KIT | 793910
$409.99 USD
Shipping calculated at checkout.
Out of stock

Keep your CFMOTO performing at its best with this complete OEM oil change kit — designed for a precise fit, clean installation, and long-lasting protection.

OEM Geniune Parts
OEM Geniune Parts
Fast Shipping
Fast Shipping
Payment methods
  • American Express
  • Apple Pay
  • Discover
  • Google Pay
  • JCB
  • Mastercard
  • PayPal
  • Venmo
  • Visa
  • Developed around an oversized K&N High-Flow Air Filter that is designed to boost performance, filtration and service intervals
  • Dyno-tuned velocity stack directs airflow to engine
  • Aluminum backing plate provides solid mounting surface
  • Built-in breathers replace external OE breathers

Fitment

  • 1999, 2007-10 Harley Davidson FXSTC Softail Custom
  • 1999-00 Harley Davidson FXDS-Conv Dyna Convertible / FXRSE CVO FXR
  • 1999-03 Harley Davidson FLSTS Softail Heritage Springer
  • 1999-05 Harley Davidson FXDX Dyna Super Glide Sport
  • 1999-06 Harley Davidson FXSTS Softail Springer
  • 1999-07 Harley Davidson FLHR Road King / FLHRC Road King Classic / FLHT Electra Glide / FLHTC Electra Glide Classic / FLHTCU Electra Glide Ultra Classic / FLTR Road Glide / FXD Dyna Super Glide / FXDL Dyna Low Rider / FXDWG Dyna Wide Glide / FXST Softail
  • 1999-09 Harley Davidson FXSTB Softail Night Train
  • 1999-15 Harley Davidson FLSTC Softail Heritage Classic / FLSTF Softail Fat Boy
  • 2000-07 Harley Davidson FXSTD Softail Deuce
  • 2001 Harley Davidson FLTRSE CVO Road Glide
  • 2001-02 Harley Davidson FXDWGSE CVO Dyna Switchblade
  • 2001-03 Harley Davidson FXDXT Dyna Super Glide T-Sport
  • 2002-03, 2007 Harley Davidson FLHRSE CVO Road King
  • 2003-04 Harley Davidson FXSTDSE CVO Softail Deuce
  • 2004-05 Harley Davidson FLHTCSE CVO Electra Glide
  • 2004-07 Harley Davidson FLHRS Road King Custom
  • 2005-06 Harley Davidson FLSTFSE CVO Softail Fat Boy
  • 2005-07 Harley Davidson FLSTSC Softail Springer Classic / FXDC Dyna Super Glide Custom
  • 2005-15 Harley Davidson FLSTN Softail Deluxe
  • 2006 Harley Davidson FLST Softail Heritage
  • 2006-07 Harley Davidson FLHTCUSE CVO Electra Glide Ultra Classic / FLHX Street Glide / FXDB Dyna Street Bob
  • 2007 Harley Davidson FXDSE CVO Dyna
  • 2007-09 Harley Davidson FXSTSSE CVO Softail Springer
  • 2008-09 Harley Davidson FXCW Softail Rocker
  • 2008-11 Harley Davidson FLSTSB Softail Cross Bones / FXCWC Softail Rocker C
  • 2010 Harley Davidson FXSTCU Softail Custom Classic
  • 2010-11 Harley Davidson FLTRX Road Glide Custom
  • 2010-12 Harley Davidson FLSTSE CVO Softail
  • 2010-15 Harley Davidson FLSTFB Softail Fat Boy Lo
  • 2011-13 Harley Davidson FXS Softail Blackline
  • 2012-15 Harley Davidson FLS Softail Slim
  • 2013-15 Harley Davidson FXSB Softail Breakout
  • 2014-15 Harley Davidson FLSTNSE CVO Softail Deluxe
Fast Shipping
Cutoff times apply to in-stock items. Delays may occur during peak periods.

Fast Shipping

Free & 2-Day Shipping Available

30 Day Guarantee

30 Day Return Policy

Black icon of a box with arrows around it on a transparent background

Worry-Free Returns

Quick and Easy Returns

You may also like

Frequently asked questions

How often should I replace my air or oil filter?

Most ATV, UTV, and motorcycle filters should be replaced every 50–100 hours, or sooner if you ride in dusty, muddy, or sandy conditions.

How do I know which filter fits my machine?

Use your year, make, and model, or check the OEM part number. Installing the wrong filter can restrict airflow or reduce oil pressure.

Should I choose OEM or aftermarket filters?

OEM filters provide exact fit and reliability. Aftermarket filters can improve airflow or offer budget-friendly options. Both are safe as long as they match your model.

What happens if I don’t change a clogged air filter?

A dirty air filter can cause loss of power, poor throttle response, increased fuel usage, and long-term engine wear.

Do performance filters help with power?

High-flow filters can improve airflow and slightly increase horsepower, especially on performance ATVs and motorcycles, but regular OEM filters provide the best long-term protection.