K&N parts matching Purolator A31631 air filter

The Purolator A31631 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Purolator air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Stephen, Lompoc, California
Hello,<br /> I installed the KN air filter in my 1975 Mercedes Benz 280SE and I noticed a very positive improvement in horsepower and gasoline consumption. &nbsp;I've always taken very good care of my 37 year old car and this air filter was like nitro for my car<br /> Well done KN folks
Kevin Kay , Redding, California
Great service, buy direct!
Ken Hervochon, Dermarest, New Jersey
Four years ago I purchased a 1975 Porsche 911Sa and discovered it had a KN air filter. &nbsp;Recently I discovered that the cotton cloth was breaking down and had holes through it. &nbsp;I contacted Ms Ashley Lopez at customer service. &nbsp;She advized me to e-mail her a photo, which I did and within one hour, thats right, one hour she replied with a party number and and order number for a replacement filter. &nbsp;Not only did they honor their warrenty but did it without a sales receipt. &nbsp;Four days later, the part arrived, by UPS, postage free AND THESE KN PRODUCTS ARE ALL MADE IN &nbsp;THE USA. &nbsp;I can not say enough about KN product and their top shelf representives. &nbsp;Once again, Thanks for a great product.
E-2380 K&N E-2380 Replacement Air Filter
List Price: $99.09
Your Price: $63.99