K&N parts matching Champ Labs. AF4066 air filter

The Champ Labs. AF4066 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
Mark , Essex, Connecticut
Definitely improved milage on my 2014 toyota 4runner. The buying experience was good. Shipping took a bit longer than most things I buy online but it worked.
Rodrigo Aguirre, Atlanta, Georgia
This is my first K&N Air Filter for my 2013 Toyota 4Runner SR5, and I already notice a huge difference in gas milage! K&N has hit the nail on the head with their filters! I will be purchasing more K&N products in the very near future! Thanks!
Eric Cabrera, California
My expectations were very high given my previous experience with other K&N filters installed in my other vehicles. Excellent product that lives up to its promise of increased acceleration & overall improvement in power. Very fast delivery of item too. I received much sooner than expected in double box. Installed in a new 2015 Toyota 4Runner Trail making an excellent vehicle even better if that's even possible Hats off to the folks @ K&N
33-2438 K&N 33-2438 Replacement Air Filter
List Price: $91.19
Your Price: $58.99