Description
PRODUCT OVERVIEW
K&N Custom Air Filter Assemblies are designed with the racer in mind. They incorporate good looks as well as the superior air flow that you expect from K&N. K&N Custom Air Filter Assemblies are designed for use with any engine that uses a round element air cleaner housing. They incorporate our famous K&N Air Filters and provide more air flow than other assemblies of this type. Available in 4 different designs, the perfect assembly is sure to be found here. Each complete assembly comes with base, element, and top plate.
PRODUCT DETAILS
Part Number:
knnRK-3947
Description:
Street Metal Series Intake System
Air Filter Color:
Red
Air Filter Height:
2.125 in (54 mm)
Air Filter Material:
Cotton Gauze
California Restricted:
Not legal for sale or use in California
Color:
Red
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 Quantity:
1
Product Style:
Motorcycle Intake System
Replacement Filter:
E-3975
RPM:
4786
Title:
K&N RK-3947 Intake System-Harley Davidson
Top Material/Finish:
Chrome
Weight:
4.3 lb (2 kg)
Color / Finish:
Red Filter, Chrome Top
Top Material:
Chrome
Product Box Height:
4.88 in (124 mm)
Product Box Length:
11.75 in (298 mm)
Product Box Width:
9.5 in (241 mm)
Street Legal In All US States:
No
TUV Approved (Europe):
No
Air Filter Included:
Yes
Air Filter Washable:
Yes
CARB EO Number:
D-269-59
Package Material:
Paperboard
Package Type:
Box
Warranty:
12 Months
Prop 65 (C, R or CR):
CR
Prop 65 – Short Label:
WARNING: Cancer and Reproductive Harm – www.p65warnings.ca.gov
Prop 65 Warning Label:
https://www.knfilters.com/images/l/prop65.jpg
Prop 65 Yes/No:
Yes
VEHICLE FITMENT
-
empt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2009: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2010: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2011: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2012-2016 Harley Davidson FLHR Road King Base –.1690cc Air Intake Systems::Cold Air Intakes
2012: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2013: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2014: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2015: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2016: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2008-2010 Harley Davidson FLHRC Road King Classic Base –.1584cc Air Intake Systems::Cold Air Intakes
2008: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2009: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2010: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2011-2013 Harley Davidson FLHRC Road King Classic Base –.1690cc Air Intake Systems::Cold Air Intakes
2011: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2012: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2013: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2008 Harley Davidson FLHRSE4 Screamin Eagle Road King Base –.1801cc Air Intake Systems::Cold Air Intakes
2008: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2008-2010 Harley Davidson FLHT Electra Glide Standard Base –.1584cc Air Intake Systems::Cold Air Intakes
2008: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2009: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2010: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2008-2011 Harley Davidson FLHTC Electra Glide Classic Base –.1584cc Air Intake Systems::Cold Air Intakes
2008: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2009: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2010: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2011: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2012-2013 Harley Davidson FLHTC Electra Glide Classic Base –.1690cc Air Intake Systems::Cold Air Intakes
2012: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2013: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2008-2011 Harley Davidson FLHTCU Electra Glide Ultra Classic Base –.1584cc Air Intake Systems::Cold Air Intakes
2008: California Air Resources Board Exempt: No; Motorcycle Intake System - Flare - Chrome 2009: California Air Resources Board Exempt: No; Motorcycle Intake System - Flare - Chrome 2010: California Air Resources Board Exempt: No; Motorcycle Intake System - Flare - Chrome 2011: California Air Resources Board Exempt: No; Motorcycle Intake System - Flare - Chrome
- 2012-2015 Harley Davidson FLHTCU Electra Glide Ultra Classic Base –.1690cc Air Intake Systems::Cold Air Intakes
2012: California Air Resources Board Exempt: No; Motorcycle Intake System - Flare - Chrome 2013: California Air Resources Board Exempt: No; Motorcycle Intake System - Flare - Chrome 2014: California Air Resources Board Exempt: No; Motorcycle Intake System - Flare - Chrome 2015: California Air Resources Board Exempt: No; Motorcycle Intake System - Flare - Chrome
- 2015 Harley Davidson FLHTCUL Electra Glide Ultra Classic Low Base –.1690cc Air Intake Systems::Cold Air Intakes
2015: California Air Resources Board Exempt: No; Motorcycle Intake System - Flare - Chrome
- 2010 Harley Davidson FLHTCUSE5 CVO Ultra Classic Electra Glide Base –.1803cc Air Intake Systems::Cold Air Intakes
2010: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2014-2015 Harley Davidson FLHTCUTG Tri Glide Ultra Base –.1690cc Air Intake Systems::Cold Air Intakes
2014: California Air Resources Board Exempt: No; Motorcycle Intake System - Flare - Chrome 2015: California Air Resources Board Exempt: No; Motorcycle Intake System - Flare - Chrome
- 2009-2013 Harley Davidson FLHTCUTG Tri Glide Ultra Classic Base –.1690cc Air Intake Systems::Cold Air Intakes
2009: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2010: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2011: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2012: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2013: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2010-2014 Harley Davidson FLHTK Electra Glide Ultra Limited Base –.1690cc Air Intake Systems::Cold Air Intakes
2010: California Air Resources Board Exempt: No; Motorcycle Intake System - Flare - Chrome 2011: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2012: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2013: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2014: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2015-2016 Harley Davidson FLHTK Ultra Limited Base –.1690cc Air Intake Systems::Cold Air Intakes
2015: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2016: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2015-2016 Harley Davidson FLHTKL Ultra Limited Low Base –.1690cc Air Intake Systems::Cold Air Intakes
2015: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2016: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2008-2011 Harley Davidson FLHX Street Glide Base –.1584cc Air Intake Systems::Cold Air Intakes
2008: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2009: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2010: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2011: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2012-2016 Harley Davidson FLHX Street Glide Base –.1690cc Air Intake Systems::Cold Air Intakes
2012: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2013: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2014: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2015: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2016: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2014-2016 Harley Davidson FLHXS Street Glide Special Base –.1690cc Air Intake Systems::Cold Air Intakes
2014: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2015: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2016: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2010-2011 Harley Davidson FLHXXX Street Glide Trike Base –.1690cc Air Intake Systems::Cold Air Intakes
2010: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2011: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2015-2016 Harley Davidson FLRT Freewheeler Base –.1690cc Air Intake Systems::Cold Air Intakes
2015: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2016: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2016-2017 Harley Davidson FLS Softail Slim Base –.1690cc Air Intake Systems::Cold Air Intakes
2016: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2017: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2016-2017 Harley Davidson FLSS Softail Slim S Base –.1801cc Air Intake Systems::Cold Air Intakes
2016: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2017: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2016-2017 Harley Davidson FLSTC Heritage Softail Classic Base –.1690cc Air Intake Systems::Cold Air Intakes
2016: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2017: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2016-2017 Harley Davidson FLSTF Fat Boy Base –.1690cc Air Intake Systems::Cold Air Intakes
2016: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2017: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2016-2017 Harley Davidson FLSTFB Fat Boy Lo Base –.1690cc Air Intake Systems::Cold Air Intakes
2016: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2017: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2016-2017 Harley Davidson FLSTFBS Fat Boy S Base –.1801cc Air Intake Systems::Cold Air Intakes
2016: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2017: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2016-2017 Harley Davidson FLSTN Softail Deluxe Base –.1690cc Air Intake Systems::Cold Air Intakes
2016: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2017: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2008-2011 Harley Davidson FLTR Road Glide Base –.1584cc Air Intake Systems::Cold Air Intakes
2008: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2009: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2010: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2011: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2011-2013 Harley Davidson FLTRU Road Glide Ultra Base –.1690cc Air Intake Systems::Cold Air Intakes
2011: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2012: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2013: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2015 Harley Davidson FLTRX Road Glide Base –.1690cc Air Intake Systems::Cold Air Intakes
2015: California Air Resources Board Exempt: No; Motorcycle Intake System - Flare - Chrome
- 2010-2011 Harley Davidson FLTRX Road Glide Custom Base –.1584cc Air Intake Systems::Cold Air Intakes
2010: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2011: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2012-2013 Harley Davidson FLTRX Road Glide Custom Base –.1690cc Air Intake Systems::Cold Air Intakes
2012: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2013: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2015-2016 Harley Davidson FLTRXS Road Glide Special Base –.1690cc Air Intake Systems::Cold Air Intakes
2015: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2016: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2017 Harley Davidson FXDWG Dyna Wide Glide Base –.1690cc Air Intake Systems::Cold Air Intakes
2017: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
- 2016-2017 Harley Davidson FXSB Breakout Base –.1690cc Air Intake Systems::Cold Air Intakes
2016: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome 2017: California Air Resources Board Exempt: Yes; CARB EO: D-269-59; Motorcycle Intake System - Flare - Chrome
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