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.
John Duffin, Delaware
Excellent and the BMW dealer wanted $90.00 for an OEM filter. I love the technical advantage and improved flow. The only complaint is no K&N window sticker in the box... Great product, this is the sixth one I have purchased for six different cars.
Ryan Wen, Benicia, California
Perfect fit for my 2013 X5D. It rides much smoother and lighter after installed K&N filter....love it.
33-2959 K&N 33-2959 Replacement Air Filter
List Price: $94.09
Your Price: $60.99