K&N parts matching Purepro A4731 air filter

The Purepro A4731 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Purepro air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Bill Atwood, Rio Rancho, New Mexico
Installed it on my 2000 S-10. The truck now gets better gas mileage, and it got back some of it's gitty up and go.
William Dutrieu , Sete, France
Bonjour, J'ai acheter ce filtre a air haute performance, et je ne le regrette pas il ajoute bien 20 de puissance, et je consomme moins de carburant. En outre,mon véhicule ne chauffe pas contrairement avec l(utilisation du filtre d'origine. Le fait de pouvoir le réutilisé presque à l'infini permet de réalisé de substantielles économies, que du bonheur donc. Merci d'avoir eu l'idée géniale d'avoir inventé ces filtres et d'avoir eu le savoir faire pour les créer. Bien a vous, William.
Mike May, Algonquin, Illinois
Car is currently down and needing a new transmission but it also needed a new filter so I picked one up knowing K&N makes great products that legitimately frees up some airflow. I've only tested it with Reving but the throttle response is noticeably quicker even without driving.
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