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

K&N Engineering

K&N Universal X-Stream Clamp-On Air Filter 3.313in Flg ID/4.875in Base OD/4in Top OD/4.25in H

$333.06

SKU: K001 RX-4120-1

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Non-Returnable Item

Description

The K&N Engineering RX-4120-1 is a universal X-Stream clamp-on air filter. It features a round tapered shape and is constructed with washable and reusable cotton gauze filter material. The filter has a flange inside diameter of 3.313 inches, a base outside diameter of 4.875 inches, a top outside diameter of 4 inches, and a height of 4.25 inches.

Fitment

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Available on iOS & Android

Specifications

BrandK&N Engineering
Part NumberK001 RX-4120-1

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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.

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