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K&N RK-3946X - Intake System-Harley Davidson

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K&N RK-3946X - Intake System-Harley Davidson
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K&N RK-3946X - Single

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  • Description
  • Benefits
  • Technical Info
  • Fitment / Compatibility
  • Shipping Explained

Description:
K&N RK-3946X - Intake System-Harley Davidson

General Details:

VersionHammer
ColourChrome
VersionLarge Capacity

Additional Images:

Click for larger picture
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 aluminium backing plate mounts directly to the throttle body via an aluminium integrated, internal-run breather system. A durable mounting gasket is also included to help absorb vibration. The glossy-finished round custom cover on this air intake means your bike will make waves wherever you go.

Please contact us to help identify which intake kit fits your bike.

PDF Downloads:

Download the Technical PDF

Benefits:

  • 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

Technical Information:

  • Estimated Horsepower Gain: 7.56 HP @ 4009 RPM
  • Replacement Filter: E-3984
  • Air Filter Colour: Red
  • Air Filter Material: Cotton Gauze
  • Warranty: 1,000,000 Miles/10 Year
  • Product Style: Motorcycle Intake System
  • Air Filter Height: 3.125 in (79 mm)
  • CARB EO Number: D-269-59
  • Street Legal In All US States: See Application Link Above
  • TUV Approved (Europe): No
  • Overall Height: 6.25 in (159 mm)
  • Top Material: Chrome
  • Package Quantity: 1
  • Weight: 4 lb (1.8 kg)
  • Product Box Height: 4.88 in (124 mm)
  • Product Box Length: 11.75 in (298 mm)
  • Product Box Width: 9.5 in (241 mm)
  • Colour: Red
  • Mounting Hardware Included: Yes

Fitment / Compatibility:

  • 2017 Harley Davidson FXSB Breakout 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2017 Harley Davidson FXDWG Dyna Wide Glide 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2017 Harley Davidson FLSTN Softail Deluxe 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2017 Harley Davidson FLSTFBS Fat Boy S 110 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2017 Harley Davidson FLSTFB Softail Fat Boy Lo 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2017 Harley Davidson FLSTF Fat Boy 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2017 Harley Davidson FLSTC Heritage Softail Classic 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2017 Harley Davidson FLSS Softail Slim S 110 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2017 Harley Davidson FLS Softail Slim 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2016 Harley Davidson FXSB Breakout 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2016 Harley Davidson FLTRXS Road Glide Special 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2016 Harley Davidson FLSTN Softail Deluxe 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2016 Harley Davidson FLSTFBS Fat Boy S 110 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2016 Harley Davidson FLSTFB Softail Fat Boy Lo 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2016 Harley Davidson FLSTF Fat Boy 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2016 Harley Davidson FLSTC Heritage Softail Classic 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2016 Harley Davidson FLSS Softail Slim S 110 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2016 Harley Davidson FLS Softail Slim 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2016 Harley Davidson FLRT Freewheeler 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2016 Harley Davidson FLHXS Street Glide Special 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2016 Harley Davidson FLHX Street Glide 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2016 Harley Davidson FLHTKL Ultra Limited Low 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2016 Harley Davidson FLHTK Ultra Limited 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2016 Harley Davidson FLHR Road King 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2015 Harley Davidson FLTRXS Road Glide Special 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2015 Harley Davidson FLTRX Road Glide 103 CI
    All Models Street Legal In All US States: No - TUV Approved (Europe): No
  • 2015 Harley Davidson FLRT Freewheeler 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2015 Harley Davidson FLHXS Street Glide Special 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2015 Harley Davidson FLHX Street Glide 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2015 Harley Davidson FLHTKL Ultra Limited Low 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2015 Harley Davidson FLHTK Ultra Limited 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2015 Harley Davidson FLHTCUTG Tri Glide Ultra 103 CI
    All Models Street Legal In All US States: No - TUV Approved (Europe): No
  • 2015 Harley Davidson FLHTCUL Electra Glide Ultra Classic Low 103 CI
    All Models Street Legal In All US States: No - TUV Approved (Europe): No
  • 2015 Harley Davidson FLHTCU Electra Glide Ultra Classic 103 CI
    All Models Street Legal In All US States: No - TUV Approved (Europe): No
  • 2015 Harley Davidson FLHR Road King 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2014 Harley Davidson FLTRX Road Glide Custom 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2014 Harley Davidson FLHXS Street Glide Special 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2014 Harley Davidson FLHX Street Glide 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2014 Harley Davidson FLHTK Electra Glide Ultra Limited 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2014 Harley Davidson FLHTCUTG Tri Glide Ultra 103 CI
    All Models Street Legal In All US States: No - TUV Approved (Europe): No
  • 2014 Harley Davidson FLHTCU Electra Glide Ultra Classic 103 CI
    All Models Street Legal In All US States: No - TUV Approved (Europe): No
  • 2014 Harley Davidson FLHR Road King 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2013 Harley Davidson FLTRX Road Glide Custom 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2013 Harley Davidson FLTRU Road Glide Ultra 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2013 Harley Davidson FLHX Street Glide 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2013 Harley Davidson FLHTK Electra Glide Ultra Limited 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2013 Harley Davidson FLHTCUTG Tri Glide Ultra Classic 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2013 Harley Davidson FLHTCU Ultra Classic Electra Glide 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2013 Harley Davidson FLHTC Electra Glide Classic 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2013 Harley Davidson FLHRC Road King Classic 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2013 Harley Davidson FLHR Road King 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2012 Harley Davidson FLTRX Road Glide Custom 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2012 Harley Davidson FLTRU Road Glide Ultra 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2012 Harley Davidson FLHX Street Glide 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2012 Harley Davidson FLHTP Electra Glide Police 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2012 Harley Davidson FLHTK Electra Glide Ultra Limited 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2012 Harley Davidson FLHTCUTG Tri Glide Ultra Classic 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2012 Harley Davidson FLHTCU Electra Glide Ultra Classic 103 CI
    All Models Street Legal In All US States: No - TUV Approved (Europe): No
  • 2012 Harley Davidson FLHTC Electra Glide Classic 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2012 Harley Davidson FLHRC Road King Classic 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2012 Harley Davidson FLHR Road King 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2012 Harley Davidson FLHP Road King Police 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2011 Harley Davidson FLTRX Road Glide Custom 96 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2011 Harley Davidson FLTRU Road Glide Ultra 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2011 Harley Davidson FLHXXX Street Glide Trike 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2011 Harley Davidson FLHX Street Glide 96 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2011 Harley Davidson FLHTP Electra Glide Police 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2011 Harley Davidson FLHTK Electra Glide Ultra Limited 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2011 Harley Davidson FLHTCUTG Tri Glide Ultra Classic 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2011 Harley Davidson FLHTCU Ultra Classic Electra Glide 96 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2011 Harley Davidson FLHTC Electra Glide Classic 96 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2011 Harley Davidson FLHRC Road King Classic 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2011 Harley Davidson FLHR Road King 96 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2011 Harley Davidson FLHP Road King Police 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2010 Harley Davidson FLTRX Road Glide Custom 96 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2010 Harley Davidson FLTR Road Glide 96 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2010 Harley Davidson FLHXXX Street Glide Trike 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2010 Harley Davidson FLHX Street Glide 96 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2010 Harley Davidson FLHTP Electra Glide Police 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2010 Harley Davidson FLHTK Electra Glide Ultra Limited 103 CI
    All Models Street Legal In All US States: No - TUV Approved (Europe): No
  • 2010 Harley Davidson FLHTCUTG Tri Glide Ultra Classic 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2010 Harley Davidson FLHTCUSE5 CVO Ultra Classic Electra Glide 110 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2010 Harley Davidson FLHTCU Ultra Classic Electra Glide 96 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2010 Harley Davidson FLHTC Electra Glide Classic 96 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2010 Harley Davidson FLHT Electra Glide Standard 96 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2010 Harley Davidson FLHRC Road King Classic 96 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2010 Harley Davidson FLHR Road King 96 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2010 Harley Davidson FLHP Road King Police 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2009 Harley Davidson FLTR Road Glide 96 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2009 Harley Davidson FLHX Street Glide 96 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2009 Harley Davidson FLHTP Electra Glide Police 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2009 Harley Davidson FLHTCUTG Tri Glide Ultra Classic 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2009 Harley Davidson FLHTCU Ultra Classic Electra Glide 96 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2009 Harley Davidson FLHTC Electra Glide Classic 96 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2009 Harley Davidson FLHT Electra Glide Standard 96 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2009 Harley Davidson FLHRC Road King Classic 96 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2009 Harley Davidson FLHR Road King 96 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2009 Harley Davidson FLHP Road King Police 103 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2008 Harley Davidson FLTR Road Glide 96 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2008 Harley Davidson FLHX Street Glide 96 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2008 Harley Davidson FLHTCU Ultra Classic Electra Glide 96 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2008 Harley Davidson FLHTC Electra Glide Classic 96 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2008 Harley Davidson FLHT Electra Glide Standard 96 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2008 Harley Davidson FLHRSE4 Screamin Eagle Road King 110 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2008 Harley Davidson FLHRC Road King Classic 96 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No
  • 2008 Harley Davidson FLHR Road King 96 CI
    All Models Street Legal In All US States:Yes
    CARB EO Number: D-269-59TUV Approved (Europe): No

Shipping

SHIPPING IS FREE* for orders of £75 and over , regardless of the weight of your order.
We've tried to keep all other shipping costs as low as we can.

Carriage starts at just £0.95 (inc VAT) for small items, with our most common courier rate set at £5.99 for orders of 5kg (enough for 5 litres of oil).

  • *Free shipping is available for UK Royal Mail, UPS Access Point™ (click & collect) and standard UK courier services (not express / priority / islands).
  • Courier surcharges mean we are unable to offer free "to the door" courier shipping from us in Cornwall up to Highlands / Grampian in Scotland - and because we send a lot of liquids, not every courier option is available to us. UPS Access Point™ (click & collect) is available as a free shipping option across Scotland, Wales and England, wherever there is a UPS Access Point™ Location.
  • Carriage charges are based on weight - please see our table of carriage costs for full details (although adding an item to your cart and viewing the calculated carriage is often easier!).
  • Priority shipping is also available.

How long will it take to get my order?

We give an estimate of delivery dates as you shop and in your basket. The vast majority of items are held in stock and dispatched from our UK warehouse and we'll do all we can to get your order to you as quickly as possible.

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