K&N parts matching Fram CA7421 air filter

The Fram CA7421 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Fram air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Chuck Schneider, Upper Black Eddy, Pennsylvania
Exact replacement.
Jared S., Greene, Maine
Great product. Fits perfectly.
Paul Prosser, Massillon, Ohio
Bought these item's for my 4.3 S10 (air & oil filter) and also an air filter for our 3.7 Jeep Grand Cherokee. Very noticable increase in fuel milage on both.
33-2042 K&N 33-2042 Replacement Air Filter
List Price: $75.99
Your Price: $48.99
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
J D Patterson, Central Florida
Added this K&N Filter to my 2000 Safari SLE (with 80K miles) and within a tank full of fuel, picked up about 1.3 MPG and shaved a full second off my 0-60. Was an easy install, instant sound and power boost. LOVE IT. Thanks K&N.
Paul, Thorold, Ontario, Canada
I have been using K&N oil and air filters for years. I have added dual exhaust and a performance chip to my '96 Astro. I recently changed the standard K&N filter to a big cone style. My chip module is still adjusting to the extra air flow. My little 4.3L V6 is amazingly fast. I have had a number of fast cars back in the day of big cubes but not a lot of HP. Try K&N filters and you will feel the difference. I only change my oil twice a year, I don't put a lot of miles on it and I use good high mileage oil. When the oil is changed it is quite clean. K&N is the best of the best.
33-2225 K&N 33-2225 Replacement Air Filter
List Price: $84.09
Your Price: $53.99