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
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.
Jim, Salem, South Carolina
Excellent product and wonderful, fast service from K&N store.
Tim Brick, Paradise Valley, Arizona
Great product. I purchased a 2012 x5d and was only getting 17.8 mpg - far below the stated 21 city. First tank of gas after I changed the air filter was 20.2. First thing I do with every new car is put a K&N filter in.
33-2959 K&N 33-2959 Replacement Air Filter
List Price: $101.99
Your Price: $65.99