K&N parts matching AC Delco A3668C air filter

The AC Delco A3668C air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many AC Delco air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Paul Cammarata, New Hampshire
I like your products. I have 3 vehicles; a Mazda Miata, a Toyota Tacoma, and a Harley soft tail, and all three have your air cleaners. I also use your KN-171C oil filters on the Harley.
Tim, Naples, Florida
I don't know about the HP or mpg benefits, but I can tell you that there is a difference in performance. My drive to work is 10 miles with 22 traffic lights. Even with a Miata the trip was not always fun. The drive just got better with the change to a K&N air filter. Response is smoother, feels quicker, and I wonder why I waited so long to make the change.
Graham Parker, Suffolk, United Kingdom
Fine fit and improves performance.
33-2335 K&N 33-2335 Replacement Air Filter
List Price: $76.69
Your Price: $48.99