K&N · RK-3956
Part #: RK-3956
UPC: 024844364491
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Description: Intake System-Harley Davidson; K&N Street Metal performance air intake systems increase power by replacing the restrictive stock OE air cleaner with a K&N complete performance air intake system.
Description:
Description
K&N Street Metal Air Intake Systems for Harley Davidson motorcycles replace the restrictive stock OE air cleaner with an oversized K&N High-Flow Air Filter and a high-volume cast aluminum housing. If you're looking for an aggressive appearance but want a significant increase in airflow, resulting in more power, this high-flow air intake system is exactly what your Harley needs. Installation is so simple, it can usually be done in 90 minutes or less. The K&N air filter is washable, reusable, pre-oiled and ready for installation. This intake system features an updated, modern look with an oval-shaped matte black housing. Silver details and sanded fins further enhance the streamlined look. Internal breathers provide a sleek, clean appearance. This air intake has a classic styling with a savage appeal.
Features & benefits
- Increased Horsepower: Guaranteed to increase horsepower, helping unlock greater performance from your engine.
- Enhanced Driving Experience: Improves throttle response and improved engine sound.
- Premium Construction: Built with premium intake materials and a durable, high-quality finish designed for lasting performance.
- Washable & Reusable Air Filter: Includes a High-Flow Air Filter that can go up to 100,000 miles before cleaning under normal highway driving conditions.
Information
Associated products: E-3988 Custom Air Filter, 99-5000 Filter Care Service Kit Aerosol
Application summary
| Year | Make / model |
|---|---|
| 2018-2020 | Harley-Davidson FLDE Deluxe 107 |
| 2018-2019 | Harley-Davidson FLFB Fat Boy 107 |
| 2018-2023 | Harley-Davidson FLFBS Fat Boy 114 |
| 2018-2021 | Harley-Davidson FLHC Heritage Classic 107 |
| 2018-2023 | Harley-Davidson FLHCS Heritage Classic 114 |
| 2017-2022 | Harley-Davidson FLHR Road King |
| 2018-2023 | Harley-Davidson FLHRXS Road King Special |
| 2019-2022 | Harley-Davidson FLHT Electra Glide Standard |
| 2017-2019 | Harley-Davidson FLHTCU Electra Glide Ultra Classic |
| 2017-2023 | Harley-Davidson FLHTCUTG Tri Glide Ultra |
| 2017-2023 | Harley-Davidson FLHTK Ultra Limited |
| 2017-2019 | Harley-Davidson FLHTKL Ultra Limited Low |
| 2017-2023 | Harley-Davidson FLHX Street Glide |
| 2017-2023 | Harley-Davidson FLHXS Street Glide Special |
| 2017-2023 | Harley-Davidson FLRT Freewheeler |
| 2018-2022 | Harley-Davidson FLSB Sport Glide 107 |
| 2018-2021 | Harley-Davidson FLSL Softail Slim 107 |
| 2020-2023 | Harley-Davidson FLTRK Road Glide Limited |
| 2023 | Harley-Davidson FLTRT Road Glide 3 |
| 2017-2019 | Harley-Davidson FLTRU Road Glide Ultra |
| 2017-2023 | Harley-Davidson FLTRX Road Glide |
| 2017-2023 | Harley-Davidson FLTRXS Road Glide Special |
| 2018-2020 | Harley-Davidson FXBB Street Bob 107 |
| 2021-2023 | Harley-Davidson FXBBS Street Bob 114 |
| 2018-2019 | Harley-Davidson FXBR Breakout 107 |
| 2018-2021 | Harley-Davidson FXBRS Breakout 114 |
| 2018-2019 | Harley-Davidson FXFB Fat Bob 107 |
| 2018-2023 | Harley-Davidson FXFBS Fat Bob 114 |
| 2018-2020 | Harley-Davidson FXLR Low Rider 107 |
| 2020-2021 | Harley-Davidson FXLRS Low Rider S 114 |
| 2022 | Harley-Davidson FXLRS Low Rider S 117 |
| 2022-2025 | Harley-Davidson FXLRST Low Rider ST 117 |
| 2020-2023 | Harley-Davidson FXST Softail Standard 107 |
Specifications
- GTIN
- 10024844364491
- Weight
- 4.25 lb
- Height
- 4.88 in
- Length
- 11.75 in
- Width
- 9.5 in
- EO
- Legal US
- Life cycle
- Available to Order
- Alt. part number
- RK-3956
- AAM brand code
- KAN
- Warehouse brand code
- KAN
- AAIA brand code
- BBWQ
Attributes
- AAM Standard Pack
- 4
- Air Filter Color
- Red
- Air Filter Height
- 2.406 in (61 mm)
- Air Filter Included
- Yes
- Air Filter Material
- Cotton Gauze
- Air Filter Washable
- Yes
- Alternate Part Number
- RK-3956
- CARB EO Number
- D-269-60/83/104
- California Proposition 65
- WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
- Color / Finish
- Red Filter, Black Top
- Estimated Horsepower Gain
- 5.19 HP @ 4981 RPM
- Horse Power Increase
- 5 HP
- Item Type
- High Performance
- Mounting Hardware Included
- Yes
- Overall Height
- 4.25 in (108 mm)
- Package Contents
- 1 Air Filter
- Package Material
- Paperboard
- Package Quantity
- 1
- Package Type
- Box
- Product Style
- Motorcycle Intake System
- RPM
- 4981
- Replacement Filter
- E-3988
- Retail Packaging
- Yes
- 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-3956 Intake System-Harley Davidson
- Top Material
- Black Powder Coated
- Warranty
- No-Hassle Lifetime Limited
- Weight
- 4.3 lb (1.9 kg)
Fitment status
Select a vehicle or engine to see whether this part applies to your application.
Application summary
2018-2020 Harley-Davidson FLDE Deluxe 107; 2018-2019 Harley-Davidson FLFB Fat Boy 107; 2018-2023 Harley-Davidson FLFBS Fat Boy 114; 2018-2021 Harley-Davidson FLHC Heritage Classic 107; 2018-2023 Harley-Davidson FLHCS Heritage Classic 114; 2017-2022 Harley-Davidson FLHR Road King; 2018-2023 Harley-Davidson FLHRXS Road King Special; 2019-2022 Harley-Davidson FLHT Electra Glide Standard; 2017-2019 Harley-Davidson FLHTCU Electra Glide Ultra Classic; 2017-2023 Harley-Davidson FLHTCUTG Tri Glide Ultra; 2017-2023 Harley-Davidson FLHTK Ultra Limited; 2017-2019 Harley-Davidson FLHTKL Ultra Limited Low; 2017-2023 Harley-Davidson FLHX Street Glide; 2017-2023 Harley-Davidson FLHXS Street Glide Special; 2017-2023 Harley-Davidson FLRT Freewheeler; 2018-2022 Harley-Davidson FLSB Sport Glide 107; 2018-2021 Harley-Davidson FLSL Softail Slim 107; 2020-2023 Harley-Davidson FLTRK Road Glide Limited; 2023 Harley-Davidson FLTRT Road Glide 3; 2017-2019 Harley-Davidson FLTRU Road Glide Ultra; 2017-2023 Harley-Davidson FLTRX Road Glide; 2017-2023 Harley-Davidson FLTRXS Road Glide Special; 2018-2020 Harley-Davidson FXBB Street Bob 107; 2021-2023 Harley-Davidson FXBBS Street Bob 114; 2018-2019 Harley-Davidson FXBR Breakout 107; 2018-2021 Harley-Davidson FXBRS Breakout 114; 2018-2019 Harley-Davidson FXFB Fat Bob 107; 2018-2023 Harley-Davidson FXFBS Fat Bob 114; 2018-2020 Harley-Davidson FXLR Low Rider 107; 2020-2021 Harley-Davidson FXLRS Low Rider S 114; 2022 Harley-Davidson FXLRS Low Rider S 117; 2022-2025 Harley-Davidson FXLRST Low Rider ST 117; 2020-2023 Harley-Davidson FXST Softail Standard 107
Installation
K&N RK-3956
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