K&N parts matching Fleetguard AF25219 air filter

The Fleetguard AF25219 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Fleetguard air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter-Hdt
  • Washable and Reusable
  • Easy to Clean
Johnny Carter, Marlette, Michigan
Excellent filter. I have now put them on both my hd trucks. First one saved me hundreds on replacement filters by washing it.
James Churchill, Saskatoon, Sk, Canada
This is an excellent HD filter. I use it on my 08 Peterbilt 386 with ISX cummins in it. With the restriction gauge, my old paper filter pulling hard, read about 5 and with the new K&N filter, it is at 2.5. It seems the engine receives better, non-restricted air, then with the paper filter. I just have 5000 miles since i put it in, but i am very happy with it. Thanks for a very fine product. James.
Bill Bartzack, Ventura, California
I think your filter is GREAT. You guys should go to Peterbilt and ask to be put on every truck built or at least made as an option!!!! I have a 2013 Pete with a PACCAR MX eng. Didn't change fuel mileage but Power is up Very NICE. So bottom line is more power without anymore fuel COSTS!!!! I am looking to put K&N on everything! I just wish I did this before. THANKS!
38-2022S K&N 38-2022S Replacement Air Filter-HDT
List Price: $239.99
Your Price: $178.99