K&N parts matching Napa 6439 air filter

The Napa 6439 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Napa air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Industrial Air Filter
  • High air flow with excellent filtration
  • Washable and reusable air filter
Jason, Indiana
Fits perfect.
Christopher K Olsen, Petersburg, Ohio
It is an excellent replacement air filter. It even changed the sound of the ATV in addition to significantly improving performance.
Randy, Illinois
FIT MY 2013 SCAG TIGER CAT MOWER OUTER FILTER PERFECT. THANK YOU
E-4961 K&N E-4961 Replacement Industrial Air Filter
List Price: $74.79
Your Price: $47.99