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K & N Street Metal Series High-Flow Air Intake System - RK-3947XB

  • Part #:
    188921
  • Manufacturer Part #:
    RK-3947XB

MSRP Price: $323.19

Our Price: $214.12

You Save:
$109.07 (34%)
1 on Hand

Overview of K & N Street Metal Series High-Flow Air Intake System - RK-3947XB

•Designed for Harley-Davidson motorcycles
•Increase horsepower and torque
•Extra tall air filter design provides even more air flow and longer service intervals than standard RK-series air intakes
•Easy to install
•Made in the U.S.A.
•Backed by K&N Million Mile Limited Warranty

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. These intake systems increase power by eliminating the stock OE air cleaner which is replaced by a complete high-flow K&N air intake system. This air intake system is constructed with an extra tall K&N air filter providing more air flow and longer service intervals than standard RK-series air intake filters. The extra tall air filter design is intended to be used on larger or custom engine builds that would benefit from higher levels of air flow. Installation is simple with a sturdy, custom aluminum backing plate that 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 K&N high-flow air filter is washable, reusable, pre-oiled and ready for installation. Simple designed custom covers give this air intake good looks while powering down the highway or at your local show.



Included Items:

(1) Black aluminum air cleaner cover

(1) Black aluminum back plate

(1) Air filter

(1) Velocity stack

(2) 3/8"-16 Breather bolts

(2) Spacers

(4) O-Rings

(3) 1/4"-20 x 3/4" Socket cap head bolts

(2) 1/4"-20 x 1/2" Flat head bolts

(2) 1/4"-20 x 1/2" Button head bolts

(2) 1/4" Flat washers

(1) 11" Black cable tie

(1) 2ml Tube of Threadlocker

Instructions

 

The Air Resources Board (ARB) does not permit the use of aftermarket emission-related parts that alter the air/fuel ratio of an emission-controlled vehicle. Due to these legal restrictions this part cannot be shipped to California.

Specs for K & N Street Metal Series High-Flow Air Intake System - RK-3947XB

Color - Primary Black
Type Air Cleaner
Units Each
Weight 4.60 lbs

Specs for K & N Street Metal Series High-Flow Air Intake System - RK-3947XB

Color - Primary Black
Type Air Cleaner
Units Each
Weight 4.60 lbs

Fitment for K & N Street Metal Series High-Flow Air Intake System - RK-3947XB

See if this part fits your ride

Part 188921 fits the following machines

Harley-Davidson
  • 2013 Harley-Davidson Electra Glide Classic - FLHTC
  • 2012 Harley-Davidson Electra Glide Classic - FLHTC
  • 2011 Harley-Davidson Electra Glide Classic - FLHTC
  • 2010 Harley-Davidson Electra Glide Classic - FLHTC
  • 2009 Harley-Davidson Electra Glide Classic - FLHTC
  • 2008 Harley-Davidson Electra Glide Classic (EFI) - FLHTC
  • 2009 Harley-Davidson Electra Glide Standard - FLHT
  • 2008 Harley-Davidson Electra Glide Standard (EFI) - FLHT
  • 2016 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2015 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2014 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2013 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2012 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2011 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2010 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2009 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2008 Harley-Davidson Electra Glide Ultra Classic (EFI) - FLHTCU
  • 2016 Harley-Davidson Electra Glide Ultra Classic Low - FLHTCUL
  • 2015 Harley-Davidson Electra Glide Ultra Classic Low - FLHTCUL
  • 2016 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2015 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2014 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2013 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2012 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2011 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2010 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2016 Harley-Davidson Electra Glide Ultra Limited Low - FLHTKL
  • 2015 Harley-Davidson Electra Glide Ultra Limited Low - FLHTKL
  • 2015 Harley-Davidson Freewheeler - FLRT
  • 2017 Harley-Davidson Heritage Softail Classic - FLSTC
  • 2016 Harley-Davidson Heritage Softail Classic - FLSTC
  • 2017 Harley-Davidson Low Rider S - FXDLS
  • 2016 Harley-Davidson Low Rider S - FXDLS
  • 2009 Harley-Davidson Road Glide - FLTR
  • 2016 Harley-Davidson Road Glide - FLTRX
  • 2015 Harley-Davidson Road Glide - FLTRX
  • 2008 Harley-Davidson Road Glide (EFI) - FLTR
  • 2013 Harley-Davidson Road Glide Custom - FLTRX
  • 2012 Harley-Davidson Road Glide Custom - FLTRX
  • 2011 Harley-Davidson Road Glide Custom - FLTRX
  • 2010 Harley-Davidson Road Glide Custom - FLTRX
  • 2016 Harley-Davidson Road Glide Special - FLTRXS
  • 2015 Harley-Davidson Road Glide Special - FLTRXS
  • 2016 Harley-Davidson Road Glide Ultra - FLTRU
  • 2013 Harley-Davidson Road Glide Ultra - FLTRU
  • 2012 Harley-Davidson Road Glide Ultra - FLTRU
  • 2011 Harley-Davidson Road Glide Ultra - FLTRU
  • 2016 Harley-Davidson Road King - FLHR
  • 2015 Harley-Davidson Road King - FLHR
  • 2014 Harley-Davidson Road King - FLHR
  • 2013 Harley-Davidson Road King - FLHR
  • 2012 Harley-Davidson Road King - FLHR
  • 2011 Harley-Davidson Road King - FLHR
  • 2010 Harley-Davidson Road King - FLHR
  • 2009 Harley-Davidson Road King - FLHR
  • 2013 Harley-Davidson Road King Classic - FLHRC
  • 2012 Harley-Davidson Road King Classic - FLHRC
  • 2011 Harley-Davidson Road King Classic - FLHRC
  • 2010 Harley-Davidson Road King Classic - FLHRC
  • 2009 Harley-Davidson Road King Classic - FLHRC
  • 2008 Harley-Davidson Road King Classic (EFI) - FLHRC
  • 2017 Harley-Davidson Softail Breakout - FXSB
  • 2016 Harley-Davidson Softail Breakout - FXSB
  • 2017 Harley-Davidson Softail Deluxe - FLSTN
  • 2016 Harley-Davidson Softail Deluxe - FLSTN
  • 2017 Harley-Davidson Softail Fat Boy - FLSTF
  • 2016 Harley-Davidson Softail Fat Boy - FLSTF
  • 2016 Harley-Davidson Softail Fat Boy Lo - FLSTFB
  • 2017 Harley-Davidson Softail Fatboy S - FLSTFBS
  • 2016 Harley-Davidson Softail Fatboy S - FLSTFBS
  • 2017 Harley-Davidson Softail Slim - FLS
  • 2016 Harley-Davidson Softail Slim - FLS
  • 2017 Harley-Davidson Softail Slim S - FLSS
  • 2016 Harley-Davidson Softail Slim S - FLSS
  • 2016 Harley-Davidson Street Glide - FLHX
  • 2015 Harley-Davidson Street Glide - FLHX
  • 2014 Harley-Davidson Street Glide - FLHX
  • 2013 Harley-Davidson Street Glide - FLHX
  • 2012 Harley-Davidson Street Glide - FLHX
  • 2011 Harley-Davidson Street Glide - FLHX
  • 2010 Harley-Davidson Street Glide - FLHX
  • 2009 Harley-Davidson Street Glide - FLHX
  • 2008 Harley-Davidson Street Glide (EFI) - FLHX
  • 2016 Harley-Davidson Street Glide Special - FLHXS
  • 2015 Harley-Davidson Street Glide Special - FLHXS
  • 2011 Harley-Davidson Street Glide Trike - FLHXXX
  • 2010 Harley-Davidson Street Glide Trike - FLHXXX
  • 2015 Harley-Davidson Tri Glide Ultra Classic - FLHTCUTG
  • 2014 Harley-Davidson Tri Glide Ultra Classic - FLHTCUTG
  • 2013 Harley-Davidson Tri Glide Ultra Classic - FLHTCUTG
  • 2012 Harley-Davidson Tri Glide Ultra Classic - FLHTCUTG
  • 2011 Harley-Davidson Tri Glide Ultra Classic - FLHTCUTG
  • 2010 Harley-Davidson Tri Glide Ultra Classic - FLHTCUTG
  • 2009 Harley-Davidson Tri Glide Ultra Classic - FLHTCUTG
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Instructions and Manuals for K & N Street Metal Series High-Flow Air Intake System - RK-3947XB

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