Air and Fuel› Air Cleaners, Filters, Intakes and Components

K&N Engineering

K&N 4in ID / 5.5in OD / 2in H Custom Assembly Filter designed to fit Harley-Davidson Motorcycle

$179.99

SKU: K001 RK-3201

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $100
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

Part #: RK-3201

Upgrade your Harley-Davidson with a K&N High-Flow Air Intake System, engineered for riders who demand both performance and style. This complete intake replaces the stock air cleaner with K&N's washable and reusable high-flow filter, increasing airflow for enhanced horsepower and quicker throttle response. The precision-designed backing plate and integrated velocity stack ensure smooth, efficient air delivery, optimizing engine performance on every ride. Built for long-lasting durability and a bold, custom appearance, the RK-3201 delivers the perfect combination of power, reliability, and standout style for your motorcycle.

This K&N custom air cleaner was designed to fit Harley-Davidson motorcycles. This K&N air cleaner is not street legal nor recommended by Harley-Davidson Motor Co., Inc. .

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

MIA's Description

The K&N RK-3201 is a custom air cleaner assembly designed for Harley-Davidson motorcycles. It features a washable and reusable round air filter with a pre-oiled finish. The assembly includes a pre-drilled back-plate and mounting hardware, with a 2.625-inch neck flange and inlet diameter.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandK&N Engineering
Part NumberK001 RK-3201

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy