K&N parts matching Luber-Finer AF3999 air filter

The Luber-Finer AF3999 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
Victor Calugar, Farmington Hills, Michigan
Instantly widened the peak HP range in my Rabbit and increased total HP and torque noticeably. Side-effects of this phenomenal air filter? It makes it much easier for your vehicle to accelerate, so I've lost some of my MPG. Had I more restrain, I don't expect this to be a factor.
Donald Robertshaw, Amsterdam, New York
I have had K&N filters in all my cars. They work and save you money. Better performance.
Juan Carlos Rodriguez, Bethlehem, Pennsylvania
It was a perfect fit. A little pricy, but if it meets up with its description, its worth the price. I will be ordering another one for my second car.
33-2331 K&N 33-2331 Replacement Air Filter
List Price: $78.19
Your Price: $50.99