K&N · RK-3947
Part #: RK-3947
UPC: 024844363459
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Description: K&N's Street Metal Series High-Flow Air Intake Systems offer increased airflow and deliver more horsepower & torque to your Harley-Davidson motorcycle.
Description:
Description
The K&N RK-3947 High-Flow Air Intake System increases engine intake airflow and delivers more horsepower & torque to many Harley-Davidson FLT and FLH model motorcycles. The intake system increases power by eliminating the stock OE air cleaner and replacing it with a complete High-Flow Air Intake System. The intake system comes with a K&N air filter for high air flow and long service intervals. The K&N high-flow air filter is washable, reusable, pre-oiled and ready for installation.
Features & benefits
- Guaranteed increase in horsepower
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 |
| 2008-2010 | 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 |
| 2008-2011 | 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
- 00024844363459
- 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-3947
- AAM brand code
- KAN
- Warehouse brand code
- KAN
- AAIA brand code
- BBWQ
Attributes
- Air Filter Color
- Red
- Air Filter Height
- 2.125 in (54 mm)
- Air Filter Included
- Yes
- Air Filter Material
- Cotton Gauze
- Air Filter Washable
- Yes
- Alternate Part Number
- RK-3947
- 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
- 7.43 HP @ 4786 RPM
- Horse Power Increase
- 7 HP
- Mounting Hardware Included
- Yes
- Overall Height
- 2.125 in (54 mm)
- Package Material
- Paperboard
- Package Quantity
- 1
- 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
- 4786
- Replacement Filter
- E-3975
- 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-3947 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; 2008-2010 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; 2008-2011 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-3947
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