K&N parts matching BMC 21901 air filter

The BMC 21901 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many BMC air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Aaron Cloud, Saint Maries, Idaho
It shipped fast, installed extremely fast, and improved the function of my brothers truck. Worth every penny.
Peter, London, United Kingdom
Made a considerable difference when moved from standard filer to KN panel filter. Was quite shocked how much more it gives and sounds from stock blow off are now pretty loud - BPU Supra does not require induction kit it is a waste of money - drop in panel filter is a the best option. Had it on many of my previous cars always happy.
Wayne Williams , New Bern, North Carolina
Absolutely performs better and a few extra miles per fill up. Thanks K&N
33-2054 K&N 33-2054 Replacement Air Filter
List Price: $112.79
Your Price: $72.99