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
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
Jeff Thomas, Texarkana, Arkansas
This is the second K&N filter that I have installed in our Lexus SUV's. The first one was in a 2001 RX-300 that had 221,000 miles on it when I traded it in on the 2011 GX-460. I drove it straight home and ordered another K&N for it. I have consistently gotten 1 to 1.5 MPG more on the highway with the K&N installed than the factory sticker MPG advertises for highway mileage for my vehicle. Plus, it just feels like the engine is breathing much better with the K&N under the hood.
Bill W, Cape Cod, Massachusetts
I installed the K&N filter in our 2012 Toyota 4Runner and noticed an immediate improvement in power, plus we gained 1 to 2 mpg!  I have been using K&N filters for many years now and have been extremely happy with the results.  In fact, I just purchased a used Ford pickup truck and intend to replace the stock air filter with a K&N filter.
33-2438 K&N 33-2438 Replacement Air Filter
List Price: $91.19
Your Price: $58.99