K&N parts matching Luber-Finer AF3978 air filter

The Luber-Finer AF3978 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Luber-Finer air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Alfonso Rios, Pacoima, California
The filters fit perfectly.
Gregg Dantin, Bay City, Texas
Filter made small but noticeable improvements in maximum power and cruising fuel economy compared to previous paper filter.
Bob Shaw, Austin, Texas
Quick and easy shopping experience. I always install K&N Filters in every car I own. I've been doing it for years and the cars wear out long before the filters ever will . Thanks.
33-2273 K&N 33-2273 Replacement Air Filter
List Price: $73.29
Your Price: $46.99