K&N Engineering
K&N Briggs & Stratton Num 393957
SKU: K001 E-4370
Description
Part #: E-4370
The K&N E-4370 Air Filter fits some Briggs & Stratton, Cub Cadet, Generac, Jacobsen, John Deere, and Walker models. It's an oiled cotton gauze direct replacement air filter intended specifically for light industrial equipment. It's perfect in many applications, including chippers, industrial motors, utility lawn and garden units, generators, and more. K&N high-flow air filters provide excellent filtration and engine protection while they reduce restriction to allow your engine to breath more efficiently. They're also washable and reusable.
BRIGGS/STRATTON #393957
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
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 E-4370 |
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