K&N parts matching Napa 6438 air filter

The Napa 6438 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
John Johnson, Stanwood, Michigan
Well constructed and very simple to install. Will recommend to others.
Mark Rickhoff, Bartelso, Missouri
It's a good product.
Jimmy, Lake Butler, Florida
The filter is a perfect fit. The mower really gets a workout in the summer. I expect years of use with this filter as opposed to a month or two with the paper filters.
E-4961 K&N E-4961 Replacement Industrial Air Filter
List Price: $74.79
Your Price: $47.99