K&N Engineering · New
K&N Onan RV Generator
MPN E-4420 · Store SKU knnE-4420
Supplier stock checked 11/7/2026, 3:24:15 PM 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-4420 replacement air filter is constructed with layers of woven cotton for outstanding filtration and low air restriction to help your engine run more efficiently. This air filter can be washed and reused. The E-4420 is easy to install and is custom designed to fit some Onan generators and Clark Equipment forklifts, as well as other applications. The K&N E-4420 replacement air filter is constructed using an oil-free synthetic media. A tube of sealing grease is provided to ensure an airtight seal. This air filter can be washed and reused. The E-4420 is easy to install and is custom designed to fit some Onan generators and Clark Equipment forklifts, as well as other applications. The K&N E-4420 replacement air filter is constructed with an oil-free synthetic for outstanding filtration and low air restriction to help your engine run efficiently. This air filter can be washed and reused. SPECIAL ORDER Repl Indstrl Fltr ONAN;RV GENERATOR
Manufacturer fitment & guides
Check E-4420 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
