K&N parts matching Purepro A4372 air filter

The Purepro A4372 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
Lance Rizzuto, Williamsburg, Virginia
I have had many K&N filters. This one was for a jeep that for the first time towed a motorcycle trailer from NJ to Williamsburg Va. The Jeep ran hot towing so one of the few things I could do while do on Vacation was to get a K&N filter to help for the trip home. K&N got it to my resort the next day. It added enough power that I ran about 20° cooler. K&N, Good Stuff. Worth the price just on that one trip.
33-2018 K&N 33-2018 Replacement Air Filter
List Price: $97.99
Your Price: $62.99
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
George Rey Levi Zuni, Albuquerque, New Mexico
No picture of anything fancy, just an older 3/4 ton Dodge Ram that works its rear off in dusty conditions. A perfect fit, it even looks cool.
Mike, Tappahannock, Virginia
Excellent product. The filter fit better than the OEM one. Noticed a bump up in acceleration after driving for a few days. Way better than other filter brands. Money well spent.
Josh, Wausau, Wisconsin
I own a 1997 Dodge Ram 1500 Extended cab 4x4 with a 360ci/5.9 liter V8 automatic. As others have stated, I was also hesitant to buy a K&N because of the $50 price tag and being slightly skeptic of the claims, but I had money to burn that week so I decided to buy it. At first I was very convinced I had wasted my money but none the less I had fun unboxing the filter and installing it along with slapping the K&N sticker on my air cleaner. Then after a week the computer adjusted to it and over the course of a month of driving my truck I had noticed gas mileage being very very good on the highway & city, especially for a truck that'd usually nail down a constant 16-17mpg in stock form.<br /> <br /> Recently I borrowed my truck to my parents and they reported an average of 21mpg on a 1000 mile round trip to pick up an engine! A 4mpg increase on a 360 Dodge truck weighing 6450 lbs loaded down with cargo & passengers none the less over my stock baseline!. I don't know anyone with a stock filter getting anywhere near this mpg with a Dodge!. I believe it has helped my mpg out a lot!.<br /> <br /> As for the power aspect of things, I didn't think much of it, until I had driven other 360 Dodges I had worked on doing tune ups and wondering why they never seemed as fast as mine. The K&N is what I think is delivering that very noticeable difference. Future buyers beware: it may take about 100 miles for the computer to adjust to the new flow of this filter for your butt dyno & pocket book to get the most out of it.<br /> <br /> All things considered, the fact it made any difference at all was a plus in a world of products that don't deliver, but the fact I gained 4mpg and a little more snap to my truck that I can feel is a great thing!. I would highly recommend K&N to anyone looking to get the most out of their vehicle!.
33-2084 K&N 33-2084 Replacement Air Filter
List Price: $91.89
Your Price: $58.99
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Matt Lee, Reynoldsburg, Ohio
Love K&N filters. Have always bought them for my cars.
Daniel Saad , Royal Oak, Michigan
This is the third vehicle in which I've installed a K&N filter - always a great investment.
Isaac, New Mexico
Installed on my 2000 Jeep XJ I6. Engine definitely feels a bit more responsive after installing this filter. Gas mileage not totally conclusive as of yet, but need more time - looks to be slightly improved (5?). And I'll never have to buy another air filter I'd say this is totally worth it for a vehicle you plan to keep around for 100k+ miles.
33-2122 K&N 33-2122 Replacement Air Filter
List Price: $102.39
Your Price: $65.99
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Terry Mulawa, Michigan
I have K&N air filters on all four of my vehicles and they all function well.
Richard E. Curry, Miami, Florida
Ever since i put the air filter in my car it runs better and the pick up is great.
Jesse Walczak, Fuquay, Varina
Easy install.
33-2175 K&N 33-2175 Replacement Air Filter
List Price: $90.39
Your Price: $57.99
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Van Maris, Steven, Utrecht, Netherlands
Not the cheapest, but definitely the best. In my 13 year old diesel Volvo, I put a new K&N air filter and it got all the lost horsepowers back. :)
Louis Nardot, Chalus, France
Livraison rapide bonne qualité. Voiture plus performante et surtout économie non négligeables de carburants entre 1l et 1,5 litre pour 100 km . Merci kn.
Gerald, Phoenix, Arizona
My info center computer states that my mpg went from 30.8 to 31.5 This is with appox. 750 miles driven. I have no info on the horsepower. But I assume it has similar positive results.
33-2763 K&N 33-2763 Replacement Air Filter
List Price: $81.79
Your Price: $52.99