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

K&N Engineering

K&N 03-08 Honda CRF450R / 04-09 Honda CRF250R Replacement Drop In Air Filter

$209.64

SKU: K001 HA-4503XD

Special Order
Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The K&N HA-4503XD is a powersports performance air filter designed for Honda CRF250R and CRF450R models. It features a large surface area for extended service life and low restriction, offering outstanding filtration. The filter is washable and reusable, and comes pre-oiled and ready to use. Its unique air filter shape and two-piece design facilitate easier installation and removal on modern MX bikes.

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 HA-4503XD

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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