K&N parts matching AC Delco A3121C air filter

The AC Delco A3121C 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
Kris, England
Great product, arrived in a few days and does what it says on the tin.
Laurent Desvigne, Miserey Salines, France
Hello! I received my K&N air filter in a reasonable time and I am anxious to install it.
Ivelin Penchev, Sofia, Bulgaria
Excellent product, easy to install. I would say that there is slight positive difference how the throttle response feels - it's not big, but definitely you can feel the change.
33-2293 K&N 33-2293 Replacement Air Filter
List Price: $75.79
Your Price: $48.99