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K&N has been the world's leader in washable, reusable performance air filters since 1969. From the legendary cone filter to complete cold-air intake systems, K&N's cotton-gauze element delivers more airflow than paper while staying serviceable for the life of the vehicle.
Unleash the power of your Harley Davidson Twin Cam engine with the K&N RK Series Oval Air Intake System. Engineered for performance, this system is built around K&N's legendary High-Flow Air Filter, renowned for its exceptional airflow and filtration capabilities. The RK-3910-1 features an innovative, powder-coated billet aluminum back plate that eliminates external breathers and incorporates a dyno-tuned velocity stack. This design significantly increases airflow to your engine, resulting in a noticeable boost in horsepower and torque without compromising filtration efficiency.
This K&N intake system is specifically designed for a wide range of Harley Davidson models from 1999 to 2007, including the Road King, Electra Glide, Heritage Softail, and Fat Boy. Installation is straightforward, allowing you to quickly upgrade your bike's performance. Experience the difference K&N engineering makes and elevate your riding experience. Find this and other high-performance parts at GGCRACING.
| Brand | K&N Engineering |
|---|---|
| Manufacturer part number | RK-3910-1 |
| GGC SKU | KNNRK-3910-1 |
| UPC / GTIN | 024844301697 |
Use the manufacturer part number when you compare with other listings or ask us to confirm a match.
| Box size | 11.9 × 10.1 × 5.2 in |
|---|---|
| Shipping weight | 3.4 lb |
| Year | Make | Model | Trim |
|---|---|---|---|
| 1999-2017 | Harley-Davidson | FLHR Road King | Base |
| 2007-2013 | Harley-Davidson | FLHRC Road King Classic | Base |
| 2002-2006 | Harley-Davidson | FLHRCI Road King Classic | Base |
| 2003-2006 | Harley-Davidson | FLHRI Road King | Base |
| 2004-2007 | Harley-Davidson | FLHRS Road King Custom | Base |
| 2004-2006 | Harley-Davidson | FLHRSI Road King Custom | Base |
| 1999-2009 | Harley-Davidson | FLHT Electra Glide Standard | Base |
| 1999-2005 | Harley-Davidson | FLHTC Electra Glide Classic | Base |
| 2007-2013 | Harley-Davidson | FLHTC Electra Glide Classic | Base |
| 2002-2006 | Harley-Davidson | FLHTCI Electra Glide Classic | Base |
| 2007-2017 | Harley-Davidson | FLHTCU Electra Glide Ultra Classic | Base |
| 2002-2006 | Harley-Davidson | FLHTCUI Electra Glide Ultra Classic | Base |
| 2003-2006 | Harley-Davidson | FLHTI Electra Glide Standard | Base |
| 2006-2017 | Harley-Davidson | FLHX Street Glide | Base |
| 2006 | Harley-Davidson | FLHXI Street Glide | Base |
| 2006 | Harley-Davidson | FLST Heritage Softail | Base |
| 1999-2017 | Harley-Davidson | FLSTC Heritage Softail Classic | Base |
| 2001-2006 | Harley-Davidson | FLSTCI Heritage Softail Classic | Base |
| 1999-2017 | Harley-Davidson | FLSTF Fat Boy | Base |
| 2001-2006 | Harley-Davidson | FLSTFI Fat Boy | Base |
| 2006 | Harley-Davidson | FLSTI Heritage Softail | Base |
| 2005-2012 | Harley-Davidson | FLSTN Softail Deluxe | Base |
| 2005-2006 | Harley-Davidson | FLSTNI Softail Deluxe | Base |
| 2000-2003 | Harley-Davidson | FLSTS Heritage Springer | Base |
| 2005-2007 | Harley-Davidson | FLSTSC Softail Springer Classic | Base |
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