K&N parts matching Champ Labs. AF3959 air filter

The Champ Labs. AF3959 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Champ Labs. air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Bill Stankiewicz, Cripple Creek, Colorado
Perfect fit. Gained 2 miles to the gallon on the first three tanks of gas. Took five minutes to install!
James ciarlo, Arizona
My Toyota runs so much better with the K&N air filter. I tell all my friends to get one!!!! Thanks.
Fred Villarreal, Mission, Texas
For the past 7 years, more or less, I have been buying K&N filters for every truck I buy. It works for me. Every 3 months I check the filter and do not worry about it for another 3 months.
33-2281 K&N 33-2281 Replacement Air Filter
List Price: $75.19
Your Price: $48.99