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25% Off Select Parts and Accessories
Receive 25% Off Your Online or In-Store Purchase. Use promotional code MMJ25 at checkout to receive discount. Not valid in combination with any other discounts, promotions or items already on sale. Not valid on gift cards, special orders, installed merchandise, commercial or fleet purchases. Those products that are included will be displayed in product search results and product detail pages. INCLUDES the following categories: Starters, Alternators, Fuel Pumps, Radiators, Shocks & Struts, Chassis, CV Axles, Batteries, Ignition, Window Motors, Wipers, Appearance Chemicals, Car Wash Accessories, Floor Mats, Lift Equipment, Hand Tools, Headlamps and Bulbs. Excludes the following brands: Powerstop, Razor, Traxxas, Superchips, Hypertech, Edge, Bully Dog, Diablo, Edelbrock, Holley, NOS, Proform, Specialty Auto, Autometer, Accel, K&N, Kenwood, Pioneer, Sony, Thule, Thule Karrite, JVC, Flowmaster, Hurst, B&M, MSD, Moog, Wagner and BBK Performance. Valid online until 2:59 am EST on 5/1/17.

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25_410_RT3910
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  • Part #: RT3910|
  • SKU: 20053603

Available


    • Replacement filter for RK-3909
    • Washable and reusable
Retail
$112.99
PayPal available for online purchases. Major credit cards accepted online and in store. Pay online, in-store or take advantage of our Pep Boys credit card. Learn more and see additional details in cart.

K&N Custom Air Filter

The K&N RT-3910 Custom Air Filter converts the RK-Series Air Filter Assembly (RK-3909) with a taller K&N Air Filter and longer spacers. It is designed for Harley owners who need more air for better performance.
  • Replacement filter for RK-3909
  • Washable and reusable
  • Low restriction
  • Comes with spacers and thread locker
Restrictions
  • WEB ORDER ONLY!


California Restricted
Not legal for sale or use in California
Air Filter Height
2 in (51 mm)
Air Filter Shape
Oval
Inlet Diameter
2.25 in (57 mm)
Length
8.813 in (224 mm)
Overall Height
2.5 in (64 mm)
Filter Material
Cotton Gauze
Height
2.25 in (57 mm)
Mounting Hardware Included
Yes
Flanges
None
Air Filter Material
Cotton Gauze
Color
Red

20053603