K&N Engineering · New
K&N Briggs & Stratton Num 393957
MPN E-4370 · Store SKU knnE-4370
Supplier stock checked 11/7/2026, 5:45:40 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
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. SPECIAL ORDER Repl Indstrl Fltr BRIGGS/STRATTON #393957
Manufacturer fitment & guides
Check E-4370 against the manufacturer’s application information below.
A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.
Part-specific notes
- Emissions acknowledgement required before purchase.
- California Proposition 65: Y
