K&N parts matching Wesfil WA1137 air filter

The Wesfil WA1137 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Wesfil air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Bill Stevenson, Riverside, California
Excellent after market application. Simple steps to recharge filter. Treating your vehicle with this product puts you in charge of its care and feeding. Why trust some knucklehead with an inferior paper filter that may or may not fit? It's your machine...give it the best!
Ray Jones, Weatherford, Texas
I received the air filter timely. It installed easily and is performing very well.
Don Algama, Chicago, Illinois
Very easy to install , shipped on time, quality of the product is amazing and car feels a lot more responsive than expected. I have been buying K&N filters for many years and will continue to do so. Very helpful customer support as well when you call in with questions.
33-2137 K&N 33-2137 Replacement Air Filter
List Price: $75.99
Your Price: $48.99