K&N · RK-3947X
Part #: RK-3947X
UPC: 024844363473
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Description: K&N's Street Metal Series High-Flow Air Intake Systems provide a good looking appearance, offer increased airflow and deliver more horsepower & torque to your Harley-Davidson motorcycle.
Description:
Description
K&N's Street Metal Series High-Flow Air Intake Systems provide attractive styling, offer increased airflow and deliver more horsepower & torque to your Harley-Davidson motorcycle. This series completely eliminates the stock OE air cleaner and replaces it with a high-flow K&N air intake system, increasing power. This intake system uses an extra tall K&N air filter, which means even more air flow and longer service intervals than standard RK-series air intake filters. Larger or custom engine builds most often benefit from higher levels of air flow, so the extra tall filter designs are a perfect choice for more powerful bikes. The K&N high-flow air filter is washable, reusable, pre-oiled and ready for installation, making an already easy install even faster. Just how fast? Less than 90 minutes, in most cases. The sturdy, custom aluminum backing plate mounts directly to the throttle body via an aluminum integrated, internal-run breather system. A durable mounting gasket is also included to help absorb vibration. The brilliant shine on this custom flare-shaped chrome cover give this air intake makes an impression on and off the road.
Features & benefits
- Designed for Harley-Davidson motorcycles
Application summary
| Year | Make / model |
|---|---|
| 2008-2016 | Harley-Davidson FLHR Road King |
| 2008-2013 | Harley-Davidson FLHRC Road King Classic |
| 2008 | Harley-Davidson FLHRSE4 Screamin Eagle Road King |
| 2008-2009 | Harley-Davidson FLHT Electra Glide Standard |
| 2008-2013 | Harley-Davidson FLHTC Electra Glide Classic |
| 2008-2015 | Harley-Davidson FLHTCU Electra Glide Ultra Classic |
| 2015 | Harley-Davidson FLHTCUL Electra Glide Ultra Classic Low |
| 2010 | Harley-Davidson FLHTCUSE5 CVO Ultra Classic Electra Glide |
| 2014-2015 | Harley-Davidson FLHTCUTG Tri Glide Ultra |
| 2009-2013 | Harley-Davidson FLHTCUTG Tri Glide Ultra Classic |
| 2010-2014 | Harley-Davidson FLHTK Electra Glide Ultra Limited |
| 2015-2016 | Harley-Davidson FLHTK Ultra Limited |
| 2015-2016 | Harley-Davidson FLHTKL Ultra Limited Low |
| 2008-2016 | Harley-Davidson FLHX Street Glide |
| 2014-2016 | Harley-Davidson FLHXS Street Glide Special |
| 2010-2011 | Harley-Davidson FLHXXX Street Glide Trike |
| 2015-2016 | Harley-Davidson FLRT Freewheeler |
| 2016-2017 | Harley-Davidson FLS Softail Slim |
| 2016-2017 | Harley-Davidson FLSS Softail Slim S |
| 2016-2017 | Harley-Davidson FLSTC Heritage Softail Classic |
| 2016-2017 | Harley-Davidson FLSTF Fat Boy |
| 2016-2017 | Harley-Davidson FLSTFB Fat Boy Lo |
| 2016-2017 | Harley-Davidson FLSTFBS Fat Boy S |
| 2016-2017 | Harley-Davidson FLSTN Softail Deluxe |
| 2008-2010 | Harley-Davidson FLTR Road Glide |
| 2011-2013 | Harley-Davidson FLTRU Road Glide Ultra |
| 2015 | Harley-Davidson FLTRX Road Glide |
| 2010-2013 | Harley-Davidson FLTRX Road Glide Custom |
| 2015-2016 | Harley-Davidson FLTRXS Road Glide Special |
| 2017 | Harley-Davidson FXDWG Dyna Wide Glide |
| 2016-2017 | Harley-Davidson FXSB Breakout |
Specifications
- GTIN
- 00024844363473
- Weight
- 4.3 lb
- Height
- 4.88 in
- Length
- 11.75 in
- Width
- 9.5 in
- EO
- Legal US
- Life cycle
- Discontinued
- Alt. part number
- RK-3947X
- AAM brand code
- KAN
- Warehouse brand code
- KAN
- AAIA brand code
- BBWQ
Attributes
- Air Filter Color
- Red
- Air Filter Height
- 3.125 in (79 mm)
- Air Filter Material
- Cotton Gauze
- Air Filter Washable
- Yes
- Alternate Part Number
- RK-3947X
- CARB EO Number
- D-269-59
- California Proposition 65
- WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
- California Restricted
- Not legal for sale or use in California
- Color / Finish
- Red Filter, Chrome Top
- Estimated Horsepower Gain
- 8.1 HP @ 4.493 RPM
- Horse Power Increase
- 8 HP
- Mounting Hardware Included
- Yes
- Overall Height
- 6.25 in (159 mm)
- Package Material
- Paperboard
- Package Type
- Box
- Product Box Height
- 4.88 in (124 mm)
- Product Box Length
- 11.75 in (298 mm)
- Product Box Width
- 9.5 in (241 mm)
- Product Style
- Motorcycle Intake System
- RPM
- 4
- Replacement Filter
- E-3986
- 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.
- TUV Approved (Europe)
- No
- Title
- K&N RK-3947X Intake System-Harley Davidson
- Top Material
- Chrome
- Warranty
- No-Hassle Lifetime Limited
- Weight
- 4.3 lb (2 kg)
Fitment status
Select a vehicle or engine to see whether this part applies to your application.
Application summary
2008-2016 Harley-Davidson FLHR Road King; 2008-2013 Harley-Davidson FLHRC Road King Classic; 2008 Harley-Davidson FLHRSE4 Screamin Eagle Road King; 2008-2009 Harley-Davidson FLHT Electra Glide Standard; 2008-2013 Harley-Davidson FLHTC Electra Glide Classic; 2008-2015 Harley-Davidson FLHTCU Electra Glide Ultra Classic; 2015 Harley-Davidson FLHTCUL Electra Glide Ultra Classic Low; 2010 Harley-Davidson FLHTCUSE5 CVO Ultra Classic Electra Glide; 2014-2015 Harley-Davidson FLHTCUTG Tri Glide Ultra; 2009-2013 Harley-Davidson FLHTCUTG Tri Glide Ultra Classic; 2010-2014 Harley-Davidson FLHTK Electra Glide Ultra Limited; 2015-2016 Harley-Davidson FLHTK Ultra Limited; 2015-2016 Harley-Davidson FLHTKL Ultra Limited Low; 2008-2016 Harley-Davidson FLHX Street Glide; 2014-2016 Harley-Davidson FLHXS Street Glide Special; 2010-2011 Harley-Davidson FLHXXX Street Glide Trike; 2015-2016 Harley-Davidson FLRT Freewheeler; 2016-2017 Harley-Davidson FLS Softail Slim; 2016-2017 Harley-Davidson FLSS Softail Slim S; 2016-2017 Harley-Davidson FLSTC Heritage Softail Classic; 2016-2017 Harley-Davidson FLSTF Fat Boy; 2016-2017 Harley-Davidson FLSTFB Fat Boy Lo; 2016-2017 Harley-Davidson FLSTFBS Fat Boy S; 2016-2017 Harley-Davidson FLSTN Softail Deluxe; 2008-2010 Harley-Davidson FLTR Road Glide; 2011-2013 Harley-Davidson FLTRU Road Glide Ultra; 2015 Harley-Davidson FLTRX Road Glide; 2010-2013 Harley-Davidson FLTRX Road Glide Custom; 2015-2016 Harley-Davidson FLTRXS Road Glide Special; 2017 Harley-Davidson FXDWG Dyna Wide Glide; 2016-2017 Harley-Davidson FXSB Breakout
Installation
K&N RK-3947X
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