K&N parts matching Purepro A4278 air filter

The Purepro A4278 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
Brian Curry , Boston, Massachusetts
Not a dramatic difference, but an improvement nonetheless.
Scott Ellison, Albertville, Minnesota
Easy to order,easy to install.Gained 2MPG. Highly recommend.
Darren, Brentwood, California
Increased acceleration speed. 0-60 in 8.8 seconds. Will check against stock specs.
33-2031-2 K&N 33-2031-2 Replacement Air Filter
List Price: $77.99
Your Price: $50.99
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Barry James, Queensland, Australia
I have K&N filters in all my vehicles; honda civic, mazda miata, honda cb 900 bike and honda cb1300 bike. I totally recommend your product.
Petre Topor , Vichy, France
Profesional service.
Paul Robson, Elgin, United Kingdom
Brilliant product. Does everything it says on the box and is better than having a cone squeezed into the models engine bay. This product fits in smooth and fast it only takes a few bolts and your done its so simple .And it makes it sound more of a machine than a pussy cat.
33-2075 K&N 33-2075 Replacement Air Filter
List Price: $80.09
Your Price: $51.99
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Ramon Tribble, Castle Rock, Colorado
Great product!
Sonia Lopz, California
Great product. Increased torque and speed. Really fast shipping. No hassle drop and use application. Flawless craftsmanship.
Tom Begg, Aberdeen, United Kingdom
Delivery was quick, can't fault the product. If you need a new filter why not get one that will last and preform better.
33-2232 K&N 33-2232 Replacement Air Filter
List Price: $84.29
Your Price: $53.99
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
33-2336 K&N 33-2336 Replacement Air Filter
List Price: $86.59
Your Price: $55.99
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
John Barlund, Corona, California
Very quick delivery. Will shop there again.
Wayneworth Morrison, Tampa, Florida
Very satisfied.
Judy Campbell, Liberty South Carolina
I was very pleased with my item. It has already been installed and thank you very much.
33-2374 K&N 33-2374 Replacement Air Filter
List Price: $83.69
Your Price: $53.99