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
Graham Parker, Suffolk, United Kingdom
Fine fit and improves performance.
Angel, Cocoa, Florida
I have a Miata MX5. I love my K&N filter because it makes a huge difference in my car's mileage and performance. I recommend this filter to everyone. All my vehicles & motorcycles use nothing but K&N filters.
Philip , USA
Filter for 2010 Miata and 2015 Civic. I haven't had but one drive with the Miata, and I think there is a difference, but with the Civic with a five speed, I'm getting 40 miles per gallon on the highway, and almost that on secondary country roads. I'm still breaking the car in gradually, so I haven't had a chance to really test the performance, but so far, VERY positive results!!
33-2335 K&N 33-2335 Replacement Air Filter
List Price: $76.69
Your Price: $48.99