Exterior Components› Body Panels and Components
K&N Engineering
K&N Universal Clamp-On Air Filter - 3in Flg 3-1/2in B 3-1/2in T 5-3/4in H
SKU: K001 RU-3121HBK
Beginner — under 30 min
Description
Part #: RU-3121HBK
MIA's Description
This air filter is constructed with black synthetic media that offers high airflow capability while maintaining excellent filtration. It is an oil-free design, meaning it does not require oil for maintenance, and it is both washable and reusable, ensuring longevity.
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
| Brand | K&N Engineering |
| Part Number | K001 RU-3121HBK |
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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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