K&N Street Metal Intake System Chrome for Harley Davidson RK-3947
K&N Street Metal Intake System Chrome for Harley Davidson RK-3947
Out of stock
Need this part?
This item is currently unavailable. Ask us about availability or help finding a suitable replacement.
Shipping & returns
This selection is unavailable. Ask us to confirm availability and timing.
Shipping details
In-stock orders are processed within 48 hours; transit time is additional.
International orders include export processing and customs clearance. Duties, taxes and brokerage are extra; final freight charges may change after remeasurement.
Read the shipping policyReturns
Need help with a return? Request authorization within 30 days of delivery for eligible unused, uninstalled items. See details for exclusions and applicable fees.
Read the full return policyReturn details & how to start
Request return authorization (RMA) within 30 days of delivery for eligible items. Keep items unused and uninstalled, with original packaging and accessories. Electronics, liquids, special orders and other categories are excluded.
Email sales@frsport.com with RETURN and your order number in the subject to request an RMA. Please wait for return authorization before sending your item back.
Wrong part/size or change of mind: a 20% return processing fee applies, plus applicable shipping costs.
Original shipping is non-refundable. For orders shipped free, the actual outbound shipping cost is deducted from the refund. Return shipping is prepaid by the customer.
After payment capture, cancellations and refunds generally incur a 5% processing fee, except for our error, confirmed defects or confirmed carrier loss. The 5% and 20% fees do not stack; only the greater applicable fee applies. Store credit waives the 5% fee, but applicable return fees remain.
Missing, incorrect or transit-damaged items: report within 3 business days of receipt with photos of the product and packaging.
For defective items, contact us for help with the manufacturer's warranty process. The manufacturer decides the claim.
Specifications
Product details shared across all variants.
- Product type
- Air Cleaner Assembly
- Category
- Engine Air Filters
- Item condition
- New
- Manufacturer type
- Aftermarket
- Shipping dimensions (L × W × H)
- Shipping weight
- 4.3 lb
- Barcode
- 024844363459
Billable shipping weight; may include dimensional weight.
KN Street Metal Intake System
Air Cleaner Assembly
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.
K&N's Street Metal Series High-Flow Air Intake Systems offer increased airflow and deliver more horsepower & torque to your Harley-Davidson motorcycle.
Vehicle Fitments:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2008 - 2016 | Harley Davidson | FLHR Road King | Base |
| 2008 - 2013 | Harley Davidson | FLHRC Road King Classic | Base |
| 2008 | Harley Davidson | FLHRSE4 Screamin Eagle Road King | Base |
| 2008 - 2010 | Harley Davidson | FLHT Electra Glide Standard | Base |
| 2008 - 2013 | Harley Davidson | FLHTC Electra Glide Classic | Base |
| 2008 - 2015 | Harley Davidson | FLHTCU Electra Glide Ultra Classic | Base |
| 2015 | Harley Davidson | FLHTCUL Electra Glide Ultra Classic Low | Base |
| 2010 | Harley Davidson | FLHTCUSE5 CVO Ultra Classic Electra Glide | Base |
| 2014 - 2015 | Harley Davidson | FLHTCUTG Tri Glide Ultra | Base |
| 2009 - 2013 | Harley Davidson | FLHTCUTG Tri Glide Ultra Classic | Base |
| 2010 - 2014 | Harley Davidson | FLHTK Electra Glide Ultra Limited | Base |
| 2015 - 2016 | Harley Davidson | FLHTK Ultra Limited | Base |
| 2015 - 2016 | Harley Davidson | FLHTKL Ultra Limited Low | Base |
| 2008 - 2016 | Harley Davidson | FLHX Street Glide | Base |
| 2014 - 2016 | Harley Davidson | FLHXS Street Glide Special | Base |
| 2010 - 2011 | Harley Davidson | FLHXXX Street Glide Trike | Base |
| 2015 - 2016 | Harley Davidson | FLRT Freewheeler | Base |
| 2016 - 2017 | Harley Davidson | FLS Softail Slim | Base |
| 2016 - 2017 | Harley Davidson | FLSS Softail Slim S | Base |
| 2016 - 2017 | Harley Davidson | FLSTC Heritage Softail Classic | Base |
| 2016 - 2017 | Harley Davidson | FLSTF Fat Boy | Base |
| 2016 | Harley Davidson | FLSTFB Fat Boy Lo | Base |
| 2016 - 2017 | Harley Davidson | FLSTFBS Fat Boy S | Base |
| 2016 - 2017 | Harley Davidson | FLSTN Softail Deluxe | Base |
| 2008 - 2009 | Harley Davidson | FLTR Road Glide | Base |
| 2011 - 2013 | Harley Davidson | FLTRU Road Glide Ultra | Base |
| 2015 | Harley Davidson | FLTRX Road Glide | Base |
| 2010 - 2013 | Harley Davidson | FLTRX Road Glide Custom | Base |
| 2015 - 2016 | Harley Davidson | FLTRXS Road Glide Special | Base |
| 2017 | Harley Davidson | FXDWG Dyna Wide Glide | Base |
| 2016 - 2017 | Harley Davidson | FXSB Breakout | Base |
