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
Curt Baumle, Fort Wayne, Indiana
Great improvement in power and smoother running. Quick inexpensive fix.
Ed C, Arizona
Going on third vehicle with same filter. Originally a Isuzu Rodeo and after 175k miles engine blew a head gasket, replaced it with a Isuzu pickup from my with and put another 120k on it. Tranny started slipping and it wasn't 4x4 so got a Blazer. Have almost 250k on Blazer. I might make that million miles. Keep a cleaning kit in truck when I have oil changed so they can clean filter. All is well and gonnna stick with them.
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
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.
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.
33-2225 K&N 33-2225 Replacement Air Filter
List Price: $84.09
Your Price: $53.99