K&N parts matching AC Delco A3664C air filter

The AC Delco A3664C 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
Kenneth Ensley, Woodstock, Georgia
The K&N air filter is an excellent product. I have them in all my vehicles and recommend them highly.
Brent Chivrell, TX - Texas
I would give it 6 stars if it were an option. I have been using KN Filters in my vehicles for over 20 years. There isn't a better air filter in the world that competes with this one. It will increase your air intake and make your car run better. Easy to install and I swear it feels like I have increased my HP.
Mike, Indianapolis, Indiana
Install was very easy. I have driven close to 2,000 in about 2 weeks since it was installed and have noticed around 2mpg increase in fuel mileage. Definite power increase while running A/C over standard air filter. Love it so far.
33-2438 K&N 33-2438 Replacement Air Filter
List Price: $91.19
Your Price: $58.99