K&N parts matching Mobil AF3221 air filter

The Mobil AF3221 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Mobil air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Salomon Campos, United States
The best product for my vehicles. Thank you.
Ryan Wen, Benicia, California
Perfect fit for my 2013 X5D. It rides much smoother and lighter after installed K&N filter....love it.
Robert J Altemus, CENTERPORT, New York
Great replacement filter. Vehicle fuel economy seems to have improved by 6-7. Still early to tell. Even if there were not an improvement, I am very pleased with my vehicles running performance with the new air filter.
33-2959 K&N 33-2959 Replacement Air Filter
List Price: $94.09
Your Price: $60.99