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
Paul Bradley, Long Beach, California
It's great. Thank you!
Peter fields, Ellesmere Port, United Kingdom
Excellent service & as usual, same excellent, quality item.
Alain Lenoble, Soissons, France
Efficacité et performances dignes de mes attentes.
33-2273 K&N 33-2273 Replacement Air Filter
List Price: $73.29
Your Price: $46.99